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TEF6903A
Integrated car radio
Rev. 03 -- 3 April 2008 Product data sheet
1. General description
The TEF6903A is a single-chip car radio integrated circuit with FM/AM tuner, stereo decoder, weak signal processing and audio processing. Radio Data System (RDS)/Radio Broadcast Data System (RBDS) demodulator for radio data reception is included. FM tuner with double conversion to IF1 = 10.7 MHz and IF2 = 450 kHz with integrated image rejection for both IF1 and IF2; integrated channel filter with variable bandwidth control; capable of US FM, Europe FM, Japan FM and Eastern Europe FM. AM tuner with double conversion to IF1 = 10.7 MHz and IF2 = 450 kHz; capable of Long Wave (LW), Medium Wave (MW) and full range Short Wave (SW) (11 m to 120 m bands). Multiplex (MPX) stereo decoder, ignition noise blanker and extensive weak signal processing. Audio processing with flexible source selection, volume, balance, fader, input gain control and inaudible tuning mute. The application of an external processor is possible. Integrated audio filters for bass and treble and loudness control function. The device can be controlled via the fast-mode I2C-bus (400 kHz) and includes autonomous tuning functions for easy control without microcontroller timing. No manual alignments are required.
2. Features
I I I I I I I I I I I I I I I FM Radio Frequency (RF) front-end with large dynamic range Integrated FM channel filter with controlled bandwidth Fully integrated FM demodulator Fully integrated stereo decoder with high immunity for birdy noise FM noise blanker with adaptive detection at MPX and level Signal quality detection: level, AM wideband, frequency deviation, ultrasonic noise/adjacent channel FM weak signal processing: stereo blend, high cut control and soft mute AM RF Automatic Gain Control (AGC) circuit for external cascode AGC and Positive Intrinsic Negative (PIN) diode AGC Dual AM noise blanking system AM weak signal processing: high cut control and soft mute Low phase noise local oscillator In-lock detection for optimized adaptive Phase-Locked Loop (PLL) tuning speed Crystal oscillator reference with low harmonics Inaudible soft slope tuning mute for AM and FM Sequential state machine supporting each tuning action
NXP Semiconductors
TEF6903A
Integrated car radio
I I I I I I I I I
Integrated RDS/RBDS radio data demodulator Flexible audio input source selection Integrated audio processing and tone filtering Treble, bass and loudness tone control Volume, balance, fader and input gain control Optional connection of external sound processor, navigation voice or beep input Audio controls with Audio Step Interpolation (ASI) for pop-free function Compact Disc (CD) dynamics compression Volume Unit (VU)-meter audio level read-out
3. Quick reference data
Table 1. Symbol VCC Quick reference data Parameter analog supply voltage on pins VCC, VCCPLL, VCCVCO, VCCRF, AMMIX2OUT1, AMMIX2OUT2, MIX1OUT1 and MIX1OUT2 total supply current inclusive IV60 total supply current inclusive IV60 AM tuning frequency LW MW SW Vsens sensitivity voltage fRF = 990 kHz; m = 0.3; fmod = 1 kHz; BAF = 2.15 kHz; (S+N)/N = 26 dB; dummy aerial 15 pF/60 pF 200 V < VRF < 1 V; m = 0.8; fAF = 400 Hz f = 40 kHz Conditions Min 8 Typ 8.5 Max 9 Unit V
Supply voltage
Supply current in FM mode ICC ICC ftune 144 522 2.3 102 89 50 288 1710 26.1 mA mA kHz kHz MHz V Supply current in AM mode AM overall system parameters
S/N THD IP3 ftune Vsens
ultimate signal-to-noise ratio total harmonic distortion 3rd-order intercept point FM tuning frequency sensitivity voltage (RF input voltage at (S+N)/N = 26 dB) f = 22.5 kHz; fmod = 1 kHz; DEMP = 1; B = 300 Hz to 22 kHz; measured with 75 dummy antenna and test circuit
54 65 -
58 0.4 130 2
1 108 -
dB % dBV MHz V
FM overall system parameters
(S+N)/N
maximum signal plus noise-to-noise Vi = 3 mV; f = 22.5 kHz; ratio of MPXAM output voltage fmod = 1 kHz; DEMP = 1; B = 300 Hz to 22 kHz; measured with 75 dummy antenna and test circuit total harmonic distortion f = 75 kHz
-
60
-
dB
THD
TEF6903A_3
-
0.5
1
%
(c) NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 03 -- 3 April 2008
2 of 110
NXP Semiconductors
TEF6903A
Integrated car radio
Table 1. Symbol IP3 cs S/N
Quick reference data ...continued Parameter 3rd-order intercept point channel separation signal-to-noise ratio Conditions f = 400 kHz fFMMPX = 1 kHz fMPXAMIN = 20 Hz to 15 kHz; referenced to 1 kHz at 91 % FM modulation; DEMP = 1 FM mode; DEMP = 1; measured with 15 kHz brick-wall low-pass filter; fMPXAMIN = 200 Hz to 15 kHz THD = 0.2 %; Gvol = -6 dB; pins INAL, INAR, INAC, INAD, INBL, INBR, INC and IND configured as non-inverting, single-ended inputs; faudio = 20 Hz to 10 kHz; Vi = 1 V (RMS) see Table 83 maximum setting minimum setting
[1] [1]
Min 40 70
Typ 120 -
Max -
Unit dBV dB dB
Stereo decoder path
THD
total harmonic distortion
-
-
0.3
%
Tone/volume control Vi(max) maximum input voltage 2 V
THD
total harmonic distortion
-
0.02
0.1
%
Gvol
volume/balance gain control
-
20 -75 1 14 -14 2 14 -14 2
-
dB dB dB dB dB dB dB dB dB
Gstep(vol) Gtreble
step resolution treble gain control TRE[2:0] = 111; TREM = 1 TRE[2:0] = 111; TREM = 0
Gstep(treble) step resolution gain Gbass Gstep(bass)
[1]
bass gain control step resolution gain
BAS[3:0] = 0111; BASM = 1 BAS[3:0] = 0111; BASM = 0
The input gain setting ING and the volume setting VOL define the overall volume. The overall range is limited to -83 dB to +28 dB. For values > +28 dB the actual value is +28 dB. For overall values < -83 dB the actual value is mute.
4. Ordering information
Table 2. Ordering information Package Name TEF6903AH QFP80 Description Version plastic quad flat package; 80 leads (lead length 1.6 mm); body 14 x 14 x 2.7 mm SOT496-1 Type number
TEF6903A_3
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Product data sheet
Rev. 03 -- 3 April 2008
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Product data sheet Rev. 03 -- 3 April 2008
(c) NXP B.V. 2008. All rights reserved. TEF6903A_3
XTAL2 XTAL1 63 62 MPXAMOUT MPXAMIN 76 75 PROUT n.c. 72, 73, 74 INAL INAR INAC INAD INBL INBR INC 71 70 69 68 67 66 65 IND 64 PLOUT 54 53 INPL 56 INPR 55 61 60 59 58 57 from/to EXP SEL. 1, 2 ana FM STEREO DECODER DIV fREF VCOFDB 78 LO2 90 79 PLL /N BAND /M LO1 90 antenna DAA VCCPLL PLLGND i.c. VTCM VTC n.c. DAAOUT FMMIX1IN1 3 4 5 6 7 pll pll i.c. vcm LEVEL vcc FM DEMODULATOR gnd vref FMMIX1IN2 16 40 25 iFM LO1 FM/AM RF AGC iAM rf 17 rf 18 38 19 i.c. dc 20 21 CASCODE CONTROL 22 23 MIXER mix1 26 if1 29 MIXER
AM DEMODULATOR
5. Block diagram
NXP Semiconductors
AGND LFOUT RFOUT LROUT RROUT
VCCVCO
77
vco /2
NOISE BLANKER
HIGH CUT
DE-EMPHASIS 50 s/75 s
INPUT SELECT
EXP SEL. 1
INPUT GAIN, VOLUME, BALANCE, MUTE
LOUDNESS, BASS, TREBLE
EXP SEL. 2
F/R FADER
hcc snc SNC HCC SM
soft mute
AUDIO STEP INTERPOLATION 52 tuning mute TUNING STATE MACHINE I2C-BUS 50 swap 49 SDA ADDR
VCOTNK VCOGND
USN AM NOISE DETECTOR MOD OFFS FM NOISE DETECTOR WAM
80
vco
CPOUT VTUNE
1 2
MULTIPATH, LEVEL, ADJACENT CHANNEL, MODULATION AND OFFSET DETECTION WEAK SIGNAL AND FM BANDWIDTH CONTROL LOGIC BW
51
SCL
reset hold fast readhold
dig RDS RDS DEMODULATOR rds
DGND
48 47 46
RDCL RDDA RDSGND
vtc 10 to 13 14 15 MIXER LO1 90 90
45
TEF6903AH
LEVEL VCC GND VREF V60
LO2
90 90
ifbw
44 43 42 41
MIXER
AM IF NOISE DETECTOR
IF COUNT LO2
6v
IFMAGC
8
TRFAGC
9
24
25
27
28
34
35
36 37
38
39 40
30, 31, 32, 33
008aaa000
TEF6903A
VCCRF RFGND
IAMAGC VDCPIN i.c.
VAMCAS
AMMIX1DEC
AMMIX1REF
MIX1OUT2
IF1DEC IF1IN
AMMIX2OUT1
TAMIFKAGC
AMIF2IN
n.c.
Integrated car radio
VAMCASFB
AMMIX1IN
MIX1OUT1
IFGND
AMMIX2OUT2
AMIF2DEC
4 of 110
Fig 1. Block diagram of TEF6903AH
NXP Semiconductors
TEF6903A
Integrated car radio
6. Pinning information
6.1 Pinning
76 MPXAMOUT
75 MPXAMIN
80 VCOGND
77 VCCVCO
79 VCOTNK
78 VCOFDB
63 XTAL2
62 XTAL1
70 INAR
69 INAC
68 INAD
66 INBR
71 INAL
67 INBL
65 INC
CPOUT VTUNE VCCPLL PLLGND i.c. VTCM VTC IFMAGC TRFAGC
1 2 3 4 5 6 7 8 9
64 IND
74 n.c.
73 n.c.
72 n.c.
61 AGND 60 LFOUT 59 RFOUT 58 LROUT 57 RROUT 56 INPL 55 INPR 54 PLOUT 53 PROUT 52 ADDR 51 SCL 50 SDA 49 DGND 48 RDCL 47 RDDA 46 RDSGND 45 LEVEL 44 VCC 43 GND 42 VREF 41 V60 AMIF2IN 40
008aaa001
(c) NXP B.V. 2008. All rights reserved.
n.c. 10 n.c. 11 n.c. 12 n.c. 13 DAAOUT 14 FMMIX1IN1 15 FMMIX1IN2 16 VCCRF 17 RFGND 18 IAMAGC 19 i.c. 20 VDCPIN 21 VAMCASFB 22 VAMCAS 23 AMMIX1DEC 24 AMMIX1IN 25 AMMIX1REF 26 MIX1OUT1 27 MIX1OUT2 28
TEF6903AH
IFGND 29
n.c. 30
n.c. 31
n.c. 32
n.c. 33
IF1DEC 34
IF1IN 35
AMMIX2OUT1 36
AMMIX2OUT2 37
TAMIFKAGC 38
Fig 2. Pin configuration for QFP80
6.2 Pin description
Table 3. Symbol CPOUT VTUNE VCCPLL PLLGND i.c. VTCM VTC
TEF6903A_3
Pin description Pin 1 2 3 4 5 6 7 Description charge pump output tuning voltage; 3 mA charge pump output tuning PLL supply voltage PLL ground internally connected; leave open IF filter reference voltage IF filter center voltage
Product data sheet
Rev. 03 -- 3 April 2008
AMIF2DEC 39
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TEF6903A
Integrated car radio
Pin description ...continued Pin 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 Description PIN diode current FM AGC FM and AM RF AGC time constant not connected not connected not connected not connected antenna DAA output FM mixer 1 input 1 FM mixer 1 input 2 AM/FM RF supply voltage RF ground PIN diode current AM AGC internally connected; leave open AM PIN diode DC bias voltage feedback for cascode AM AGC cascode AM AGC AM mixer 1 decoupling AM mixer 1 input AM mixer 1 reference AM and FM mixer 1 output 1 at IF1 AM and FM mixer 1 output 2 at IF1 IF ground not connected not connected not connected not connected AM and FM mixer 2 decoupling AM and FM mixer 2 input AM mixer 2 output 1 at IF2 AM mixer 2 output 2 at IF2 AM IF AGC and FM keyed AGC time constant AM IF2 input decoupling AM IF2 input input for FM filter and demodulator supply current reference voltage for noise decoupling ground 8.5 V supply voltage AM and FM level voltage output RDS ground RDS/RBDS demodulator data and quality output RDS/RBDS demodulator clock input or output
(c) NXP B.V. 2008. All rights reserved.
Table 3. Symbol IFMAGC TRFAGC n.c. n.c. n.c. n.c. DAAOUT
FMMIX1IN1 FMMIX1IN2 VCCRF RFGND IAMAGC i.c. VDCPIN VAMCASFB VAMCAS AMMIX1DEC AMMIX1IN AMMIX1REF MIX1OUT1 MIX1OUT2 IFGND n.c. n.c. n.c. n.c. IF1DEC IF1IN AMMIX2OUT1 AMMIX2OUT2 TAMIFKAGC AMIF2DEC AMIF2IN V60 VREF GND VCC LEVEL RDSGND RDDA RDCL
TEF6903A_3
Product data sheet
Rev. 03 -- 3 April 2008
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TEF6903A
Integrated car radio
Pin description ...continued Pin 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 Description digital ground I2C-bus SDA input and output I2C-bus SCL input I2C-bus slave address select input audio output to external processor; right channel audio output to external processor; left channel audio input from external processor; right channel audio input from external processor; left channel right rear audio output left rear audio output right front audio output left front audio output analog ground crystal oscillator 1 crystal oscillator 2 audio input D, signal input audio input C, common mode or signal input audio input B, right channel audio input B, left channel audio input A, right channel inverted (or other options) audio input A, left channel inverted (or other options) audio input A, right channel audio input A, left channel not connected not connected not connected MPX and AM audio input to radio processing MPX and AM audio output from tuner part Voltage-Controlled Oscillator (VCO) supply voltage VCO feedback VCO tank circuit VCO ground
Table 3. Symbol DGND SDA SCL ADDR PROUT PLOUT INPR INPL RROUT LROUT RFOUT LFOUT AGND XTAL1 XTAL2 IND INC INBR INBL INAD INAC INAR INAL n.c. n.c. n.c. MPXAMIN
MPXAMOUT VCCVCO VCOFDB VCOTNK VCOGND
7. Functional description
7.1 FM mixer 1
The FM quadrature mixer 1 converts FM RF (65 MHz to 108 MHz) to an IF frequency of 10.7 MHz. The FM mixer provides image rejection and a large dynamic range. Low and high injection Local Oscillator (LO) can be selected via the I2C-bus.
TEF6903A_3
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Product data sheet
Rev. 03 -- 3 April 2008
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NXP Semiconductors
TEF6903A
Integrated car radio
7.2 FM RF AGC
AGC detection at the FM front-end mixer input with programmable threshold. When the threshold is exceeded, the PIN diode drive circuit sources a current to an external PIN diode circuit, keeping the RF signal level constant. Keyed AGC function is selectable via the I2C-bus and uses the in-band level information derived from the limiter. The AGC PIN diode drive circuit can optionally deliver a fixed current; this local mode can be used for search tuning on absolute RF levels. In AM mode, the FM AGC PIN diode drive circuit can be set to source a fixed current into the external FM PIN diode circuitry.
7.3 FM mixer 2
The FM quadrature mixer 2 converts 10.7 MHz IF1 to 450 kHz IF2 and includes image rejection with the integrated channel filter. Two gain settings can be selected to compensate for high ceramic filter insertion loss.
7.4 FM IF2 channel filter
The order and dynamic range of the FM IF2 channel filter is designed for operation with only one external ceramic filter. The filter characteristic is optimized to combine high selectivity with low distortion. The bandwidth of the filter can be set to a range of fixed settings or automatically via the bandwidth control algorithm. When the automatic mode is selected the bandwidth depends on the signal conditions.
7.5 FM limiter and level detection
The limiter amplifies the IF filter output signal, removes AM modulations from the IF signal and supplies a well defined signal for the FM demodulator. From the limiter also the Radio Signal Strength Information (RSSI) is derived which is converted to a suitable level voltage with minimum temperature drift.
7.6 FM demodulator
The fully integrated FM demodulator converts the IF signal from the limiter to the FM multiplex output signal with low distortion.
7.7 Center frequency and bandwidth tuning and center frequency DAA
The center frequency as well as the bandwidth of both the IF filter and demodulator are coupled to the crystal reference frequency. A coarse alignment (IFCAP) sets the circuit operating range and the center frequency fine adjustment is achieved with a 6-bit alignment (IFCF).
7.8 Bandwidth control algorithm
The bandwidth of the IF filter can be selected with 5 bits, directly via I2C-bus or automatically via the bandwidth control algorithm. The bandwidth control algorithm detects the amount of adjacent channel interference, the deviation of the desired signal, detuning, multipath and signal strength to define the optimum bandwidth setting of the IF filter. Flexibility on the algorithm settings is provided via the I2C-bus control.
TEF6903A_3
(c) NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 03 -- 3 April 2008
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NXP Semiconductors
TEF6903A
Integrated car radio
7.9 VCO and dividers
The varactor tuned LC oscillator together with the dividers provides the local oscillator signal for both AM and FM front-end mixers. The VCO has an operating frequency of approximately 160 MHz to 250 MHz. In FM mode the VCO frequency is divided by 2 or 3. These dividers generate in-phase and quadrature-phase output signals used in the FM front-end mixer for image rejection. In AM mode the VCO frequency is divided by 6, 8, 10, 16 or 20 depending on the selected AM band. The amplitude of the VCO is controlled by a digital AGC to ensure a safe oscillation start-up at a wide range of the loaded Q.
7.10 Crystal oscillator
The crystal oscillator provides a 20.5 MHz signal. A divider-by-two generates in-phase and quadrature-phase mixer frequencies for the conversion from IF1 to IF2 including image rejection. The reference divider generates from the crystal frequency various reference frequencies for the tuning PLL. Also timing signals for the sequential machine as well as references for the integrated FM channel filter, the stereo decoder and the integrated audio filters and the RDS demodulator are derived from the crystal reference.
7.11 Tuning PLL
The tuning PLL locks the VCO frequency divided by the programmable divider ratio to the reference frequency. Due to the combination of different charge pump signals in the PLL loop filter, the loop parameters are adapted dynamically. Tuning to different RF frequencies is done by changing the programmable divider ratio. The tuning step size is selected with the reference frequency divider setting.
7.12 Antenna DAA
For FM operation the antenna Digital Auto Alignment (DAA) measures the VCO tuning voltage and multiplies it with a factor defined by the 7-bit DAA setting to generate a tuning voltage for the FM antenna tank circuit (RF selectivity). In AM mode the DAA setting controls a fixed voltage.
7.13 AM RF AGC control
The AM front-end is designed for the application of an external Junction Field Effect Transistor (JFET) low noise amplifier with cascode AGC and PIN diode AGC both controlled by an integrated AGC control circuit. Four AGC thresholds of the detector at the first mixer input are selectable via I2C-bus. Detectors at the RF mixer input and at the AMIF2 input prevent undesired overload (see Figure 41). AGC information can be read out via I2C-bus. The PIN diode current drive circuit includes a pull-up current source for reverse biasing of the PIN diode, when the AGC is not active to achieve a low parasitic capacitance.
7.14 AM mixer 1
The large dynamic range AM mixer converts AM RF (144 kHz to 26.1 MHz) to an IF frequency of 10.7 MHz.
TEF6903A_3
(c) NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 03 -- 3 April 2008
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NXP Semiconductors
TEF6903A
Integrated car radio
7.15 AM IF noise blanker
The spike detection for the AM IF noise blanker is at the output of the AM front-end mixer. Blanking is realized at the second AM mixer.
7.16 AM IF AGC amplifier and demodulator
The 450 kHz IF2 signal after the ceramic channel selection filter is amplified by the IF AGC amplifier and demodulated.
7.17 AM level detection
The IF2 signal used for AM IF AGC and demodulation is also used in the limiter circuit for in-band level detection.
7.18 AM and FM level DAA
The start and slope of the level detector output are programmable to achieve level information independent of gain spread in the signal channel.
7.19 AM and FM IF counter
The output signal from the limiter is used for IF counting in both AM and FM.
7.20 Tuning mute
A soft slope tuning mute is controlled by the sequential machine for different tuning actions to eliminate audible effects of tuning and band switching.
7.21 FM stereo decoder
A low-pass filter provides additional suppression of high frequency interferences at the stereo decoder input and the necessary signal delay for FM noise blanking. The MPX signal is decoded in the stereo decoder part. An integrated oscillator and pilot PLL is used for the regeneration of the 38 kHz subcarrier. The required 19 kHz and 38 kHz signals are generated by division of the oscillator output signal in logic circuitry. By means of a 19 kHz quadrature detector the pilot PLL oscillator frequency is locked to the incoming 19 kHz stereo pilot. A pilot level voltage derived from a 19 kHz in-phase detector is used for stereo detection and for generation of an anti-phase 19 kHz signal to remove the pilot tone from the audio signal. The signal is then decoded in the decoder part. The L-R side signal is demodulated using the 38 kHz subcarrier and combined with the main signal to the left and right audio channel. A fine adjustment is done by adjusting the gain of the L-R signal. A smooth mono to stereo takeover is achieved by controlling the efficiency of the matrix by the Stereo Noise Control (SNC) signal from the weak signal processing block.
TEF6903A_3
(c) NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 03 -- 3 April 2008
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NXP Semiconductors
TEF6903A
Integrated car radio
7.22 FM and AM AF noise blanker
The FM or AM tuner operation selects between two noise blanker operations optimized for FM or AM ignition noise suppression. In FM mode the noise blanker operates as a modified sample and hold circuit with ultrasonic noise detection on MPX and detection of noise spikes on level. In AM mode the audio signal is muted during the interference pulse triggered by slew-rate detection of the audio signal.
7.23 Fixed high cut and high cut control
The high cut part is a low-pass filter circuit with seven bandwidth settings. The cut-off frequencies of the filter curves can be selected to match different application requirements (fixed high cut). The high cut circuit also provides a dynamic control of the filter response, the High Cut Control (HCC). This function is controlled by the HCC signal from the weak signal processing.
7.24 De-emphasis
The signal passes the low-pass filter de-emphasis block and is then fed to the source selector. The de-emphasis time constant can be selected between the standards of 50 s and 75 s.
7.25 Weak signal processing
The weak signal processing block detects quality degradations in the incoming signal and controls the processing of the audio signal accordingly. The weak signal processing block has three different quality criteria: The average value of the level voltage, AM components on the level voltage (WAM = wideband AM) and high frequency components in the MPX signal (USN = ultrasonic noise). In the weak signal processing block these signals are combined in specific ways and used for the generation of control signals for soft mute, stereo blend (SNC = stereo noise control) and HCC. Detector time constants of soft mute, HCC and SNC can be selected independently. In AM mode, soft mute and HCC are controlled by the average value of the level voltage.
7.26 Audio step interpolation
The tone/volume blocks of source selector, volume/balance, bass/loudness, fader and output mute include the Audio Step Interpolation (ASI) function. This minimizes audible pops by smoothing the transitions in the audio signal during the switching of the controls.
7.27 Source selector
The source selector selects one out of several input sources:
* One internal stereo signal (AM/FM tuner) * Eight input pins allow many combinations of external sources by means of flexible
input selection
TEF6903A_3 (c) NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 03 -- 3 April 2008
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NXP Semiconductors
TEF6903A
Integrated car radio
Four of the eight input pins can connect to: - 1 stereo signal with differential input (CD-symmetrical) - 1 stereo signal with common mode rejection (CD-2) and 1 mono signal (e.g. BEEP) - 2 stereo signals (AUX and AUX-2) - 1 stereo signal (AUX) and 2 mono signals (e.g. NAV and BEEP) The other four input pins can connect to the same options and allow additional connection to: - 1 stereo signal and 1 mono signal with common mode rejection or differential input (PHONE) Alternatively the 8 input pins can connect to 2 stereo signals with common mode rejection and 1 stereo signal or 1 mono signal with common mode rejection or differential input.
7.28 VU-meter read
The input audio level of external sources can read out via the I2C-bus. Audio level information is available on a logarithmic scale. In radio mode the AM or FM modulation index is available in the same way.
7.29 Volume and balance
The volume/balance control is used for volume setting and also for balance adjustment. The control range of the volume/balance control is between +20 dB and -75 dB in steps of 1 dB.
7.30 CD compression
Dynamic volume compression is available for external input sources. This option is generally used for audio from CD or other digital formats to reduce the very high dynamic range of these signals into a range suitable for the car environment.
7.31 Bass
The bass tone control stage controls the low audio frequencies with a modified shelve curve response. The control range is between +14 dB and -14 dB in steps of 2 dB. Four different filter cut-off frequencies can be selected.
7.32 Treble
The treble tone control stage controls the high audio frequencies with a shelve curve response. The control range is between +14 dB and -14 dB in steps of 2 dB. Four different filter cut-off frequencies can be selected.
7.33 Loudness
An integrated loudness function can be activated which controls bass and treble in relation to the user volume setting. The control range of the bass frequencies is limited to 20 dB and the optional treble range to 4 dB. Different volume ranges can be selected for the loudness control.
TEF6903A_3
(c) NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 03 -- 3 April 2008
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NXP Semiconductors
TEF6903A
Integrated car radio
7.34 Fader
The fader is located at the end of the tone/volume chain. The balance between the front and rear channel can be controlled by attenuation of either the front or the rear channel. Control range is 0 dB to -64 dB with a step size of 1 dB. Optionally the fader attenuation can be activated for front and rear channels together.
7.35 External processor I/O
The tone control output signal is available on two pins. Furthermore two input pins allow connection to the fader block for front and rear line outputs, or alternatively for rear output only. This allows connection of an external sound processing circuit for equalizing, surround sound or sound stage positioning. Also input or mixing of an external signal source like navigation voice or beep can be realized.
7.36 RDS/RBDS demodulator
The RDS demodulator recovers and regenerates the continuously transmitted RDS or RBDS data stream that may be part of the FM MPX signal and provides the signals clock (RDCL) and data (RDDA) for further processing by a hardware or software RDS decoder. Unbuffered demodulator output and buffered 16-bit output mode are available. The output modes are compatible with stand-alone demodulator devices as well as digital and analog signal processor standards. In case of buffered output mode additional RDS Quality (RDQ) demodulation quality information is available optional.
8. I2C-bus protocol
SDA and SCL HIGH and LOW internal thresholds are specified according to both 2.5 V and 3.3 V I2C-bus, however also SDA and SCL signals from a 5 V bus are supported. The maximum I2C-bus communication speed is 400 kbit/s in accordance with the I2C-bus fast mode specification.
S
SLAVE ADDRESS W
ACK-s
MSA
ACK-s
DATA data transferred (n bytes + acknowledge)
ACK-s
P
001aad051
Fig 3. Write mode
S
SLAVE ADDRESS R
ACK-s
DATA
ACK-m
DATA
NA
P
data transferred (n - 1 bytes + acknowledge)
001aad049
Fig 4. Read mode
TEF6903A_3
(c) NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 03 -- 3 April 2008
13 of 110
NXP Semiconductors
TEF6903A
Integrated car radio
Description of I2C-bus format Description START condition 1100 0000b for pin ADDR grounded 1100 0010b for pin ADDR floating 1100 0001b for pin ADDR grounded 1100 0011b for pin ADDR floating acknowledge generated by the slave acknowledge generated by the master not acknowledge generated by the master mode and subaddress byte data byte STOP condition
Table 4. Code S
Slave address W Slave address R ACK-s ACK-m NA MSA Data P
8.1 Read mode
Application restriction to use the read mode: Read transmissions should not be stopped after read byte 4 (IFBW) since this will disturb level read-out, weak signal processing and bandwidth control. Read transmission can be stopped after any of the other read bytes 0 to 3, 5 or 6. The read data is loaded into the I2C-bus output register at the ACK clock pulse preceding the data byte.
Table 5. Data byte 0 1 2 3 4 5 6 Read register overview Name IFCOUNTER LEVEL USN/WAM MOD IFBW ID TEMP Reference Section 8.1.1 Section 8.1.2 Section 8.1.3 Section 8.1.4 Section 8.1.5 Section 8.1.6 Section 8.1.7
TEF6903A_3
(c) NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 03 -- 3 April 2008
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NXP Semiconductors
TEF6903A
Integrated car radio
8.1.1 Read mode: data byte IFCOUNTER
Table 6. 7 IFCM1 Table 7. Bit 7 and 6 IFCOUNTER - format of data byte 0 6 IFCM0 5 IFCS 4 IFCA 3 IFC3 2 IFC2 1 IFC1 0 IFC0
IFCOUNTER - data byte 0 bit description Symbol IFCM[1:0] Description IF counter mode; IFCM reads 00 immediately after I2C-bus start of PRESET, SEARCH, AFU, JUMP or CHECK until the first IFC result of the new tuning is available. 00 = no new counter result available (IFC value is previous result or reset state) 01 = new counter result available (IFC value is new result) 10 = counter result from AF update (IFC value is AF result, value is held until I2C-bus read). Also the detector information of LEV, USN, WAM and MOD shows AF update results. 11 = Power-On Reset (POR) or undefined state of the state machine is detected. The I2C-bus data is reset to POR state.
5
IFCS
IF counter sign 0 = the IF counter result indicates a positive RF frequency error 1 = the IF counter result indicates a negative RF frequency error
4
IFCA
IF counter accuracy 0 = IF counter result with 1 kHz resolution in FM mode and 0.5 kHz resolution in AM mode 1 = IF counter result with 8 kHz resolution in FM mode and 4 kHz resolution in AM mode
3 to 0 Table 8. IFC3 0 0 0 0 0 0 0 0 1 1 1 1 1 IF counter result IFC2 0 0 0 0 1 1 1 1 0 0 0 0 1 IFC1 0 0 1 1 0 0 1 1 0 0 1 1 0 IFC0 0 1 0 1 0 1 0 1 0 1 0 1 0
IFC[3:0]
IF counter result; see Table 8
Deviation from nominal value in FM IFCA = 0 0 kHz to 1 kHz 1 kHz to 2 kHz 2 kHz to 3 kHz 3 kHz to 4 kHz 4 kHz to 5 kHz 5 kHz to 6 kHz 6 kHz to 7 kHz 7 kHz to 8 kHz 8 kHz to 9 kHz 9 kHz to 10 kHz 10 kHz to 11 kHz 11 kHz to 12 kHz 12 kHz to 13 kHz IFCA = 1 reset state 16 kHz to 24 kHz 24 kHz to 32 kHz 32 kHz to 40 kHz 40 kHz to 48 kHz 48 kHz to 56 kHz 56 kHz to 64 kHz 64 kHz to 72 kHz 72 kHz to 80 kHz 80 kHz to 88 kHz 88 kHz to 96 kHz 96 kHz to 104 kHz
Deviation from nominal value in AM IFCA = 0 0 kHz to 0.5 kHz 0.5 kHz to 1 kHz 1 kHz to 1.5 kHz 1.5 kHz to 2 kHz 2 kHz to 2.5 kHz 2.5 kHz to 3 kHz 3 kHz to 3.5 kHz 3.5 kHz to 4 kHz 4 kHz to 4.5 kHz 4.5 kHz to 5 kHz 5 kHz to 5.5 kHz 5.5 kHz to 6 kHz 6 kHz to 6.5 kHz IFCA = 1 reset state 8 kHz to 12 kHz 12 kHz to 16 kHz 16 kHz to 20 kHz 20 kHz to 24 kHz 24 kHz to 28 kHz 28 kHz to 32 kHz 32 kHz to 36 kHz 36 kHz to 40 kHz 40 kHz to 44 kHz 44 kHz to 48 kHz 48 kHz to 52 kHz
TEF6903A_3
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TEF6903A
Integrated car radio
Table 8. IFC3 1 1 1
IF counter result ...continued IFC2 1 1 1 IFC1 0 1 1 IFC0 1 0 1 Deviation from nominal value in FM IFCA = 0 13 kHz to 14 kHz 14 kHz to 15 kHz 15 kHz to 16 kHz IFCA = 1 104 kHz to 112 kHz 112 kHz to 120 kHz 120 kHz Deviation from nominal value in AM IFCA = 0 6.5 kHz to 7 kHz 7 kHz to 7.5 kHz 7.5 kHz to 8 kHz IFCA = 1 52 kHz to 56 kHz 56 kHz to 60 kHz 60 kHz
After a tuning action, which is activated by the state machine, the IF counter is reset at that moment when tuning is established (PLL in-lock). The first counter result is available from 2 ms after reset. For FM further results can be obtained from 4 ms, 8 ms, 16 ms and 32 ms after reset, the increasing count time attenuates influence of FM modulation on the counter result. After this, the counter continues at the maximum count time of 32 ms (see Figure 5). For AM the count time is fixed to 2 ms and results are available every 2 ms. After AF Update (AFU) sampling the IF counter read value is held (IFCM = 10) (see Figure 6, Figure 17 and Figure 18) for easy I2C-bus read-out. The counter itself remains active in the background in 2 ms count time mode. The IF counter data hold is released after I2C-bus read. IFCM reads 00 immediately after I2C-bus start of PRESET, SEARCH, AFU, JUMP or CHECK until the first new tuning IFC result is available.
tuning f1 f2
time
2 ms 2 ms
4 ms
8 ms
16 ms
32 ms
32 ms
32 ms 16 ms counter time 8 ms 4 ms 2 ms
32 ms
32 ms
I2C-bus register
reset
f2
001aab785
Fig 5. IF counter in FM mode after tuning
TEF6903A_3
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Integrated car radio
tuning for AF update f1 f2 f2 f1
time
2 ms
2 ms 2 ms 2 ms 2 ms 2 ms 2 ms 2 ms 2 ms 2 ms 2 ms 2 ms
4 ms
8 ms
16 ms
32 ms 16 ms counter time 8 ms 4 ms 2 ms 2 ms
I2C-bus register
reset reset hold of counter result of f2 until read-out f1
001aab786
read-out of counter result f2
Fig 6. IF counter in FM mode during and after AF update
8.1.2 Read mode: data byte LEVEL
Table 9. 7 LEV7 Table 10. Bit 7 to 0 LEVEL - format of data byte 1 6 LEV6 5 LEV5 4 LEV4 3 LEV3 2 LEV2 1 LEV1 0 LEV0
LEVEL - data byte 1 bit description Symbol LEV[7:0] Description level detector; this byte indicates the LEVEL voltage between 0.25 V (LEV = 0) and 4.25 V (LEV = 255) from the tuner part; VLEVEL = 164LEV[7:0] + 0.25 V; see Figure 7
After AF update sampling the level read value is held (indicated by IFCM = 10) for easy I2C-bus read-out. The level detector remains active in the background. The LEV data hold is released after I2C-bus read. To reduce the influence of modulation in AM mode the LEV information is additionally filtered by a slow 60 ms detector. Fast level information is made available during AF update and check tuning. For standard operation the following level alignment (byte LEVELALGN; see Table 43) is used: FM and AM level slope; LEV = 51 (VLEVEL = 0.80 V) at VRF = 20 dB (measured at VRF = 200 V and VRF = 20 V) FM mode level start; LEV = 78 (VLEVEL = 1.47 V) at VRF = 20 V AM mode level start; LEV = 63 (VLEVEL = 1.24 V) at VRF = 20 V
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TEF6903A
Integrated car radio
4 VLEVEL (V) 3
001aab521
2
1
0 10-4
10-3
10-2
10-1
1
10 102 VANT (mV)
Fig 7. FM RF antenna input signal and level output voltage
8.1.3 Read mode: data byte USN/WAM
Table 11. 7 USN3 Table 12. Bit 7 to 4 3 to 0 USN/WAM - format of data byte 2 6 USN2 5 USN1 4 USN0 3 WAM3 2 WAM2 1 WAM1 0 WAM0
USN/WAM - data byte 2 bit description Symbol USN[3:0] WAM[3:0] Description ultrasonic noise detector; this value indicates the USN content of the MPX audio signal; see Figure 24 wideband AM detector; this value indicates the WAM content of the LEVEL voltage; see Figure 24
After AF update sampling the USN and WAM read value is held (indicated by IFCM = 10) for easy I2C-bus read-out. The USN and WAM detectors remain active in the background. The USN and WAM data hold is released after I2C-bus read.
TEF6903A_3
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Product data sheet
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TEF6903A
Integrated car radio
8.1.4 Read mode: data byte MOD
Table 13. 7 MOD4 Table 14. Bit 7 to 3 MOD - format of data byte 3 6 MOD3 5 MOD2 4 MOD1 3 MOD0 2 STIN 1 TAS1 0 TAS0
MOD - data byte 3 bit description Symbol MOD[4:0] Description modulation detector; this value indicates the audio modulation; see Table 15 FM between 0 kHz and 150 kHz FM deviation AM between 0 % and 200 % modulation FM offset detector; a read value of 31 indicates offset detection. The offset detector is part of the FM bandwidth control algorithm and detects adjacent channel breakthrough. VU-meter; when an external audio source is selected and VU-meter read is active (see subaddress 17h; see Table 98) MOD indicates the audio input level (RMS) between 0 V and 2 V; see Table 15.
2
STIN
stereo indicator; this bit indicates if a stereo pilot signal has been detected 0 = no pilot signal detected 1 = pilot signal is detected and the FM stereo decoder is activated
1 and 0
TAS[1:0]
Tuning action state; state machine information. The signal TAS informs about internal control functions of the tuner action state machine. This way the progress of tuner actions can be monitored by the microcontroller. 00 = inactive 01 = starting mute 10 = PLL tuning 11 = tuning ready with mute active
Table 15. 0 0 0 0 0 0 0 0 0 0 0 0 0
TEF6903A_3
MOD detector AM radio m VU <2% 2% 4% 6% 8% 10 % 13 % 16 % 20 % 25 % 32 % 40 % 50 % -34 dB -28 dB -24 dB -22 dB -20 dB -18 dB -16 dB -14 dB -12 dB -10 dB -8 dB -6 dB External source < 0.02 V 0.02 V 0.04 V 0.06 V 0.08 V 0.1 V 0.13 V 0.16 V 0.2 V 0.25 V 0.32 V 0.4 V 0.5 V
(c) NXP B.V. 2008. All rights reserved.
MOD4 MOD3 MOD2 MOD1 MOD0 FM radio f 0 0 0 0 0 0 0 0 1 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 0 1 0 1 0 1 0 1 0 1 0 < 1.5 kHz 1.5 kHz 3 kHz 4.5 kHz 6 kHz 7.5 kHz 9.5 kHz 12 kHz 15 kHz 19 kHz 24 kHz 30 kHz 38 kHz
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TEF6903A
Integrated car radio
MOD detector ...continued AM radio m VU 63 % 80 % 100 % 125 % 160 % 200 % : -4 dB -2 dB 0 dB 2 dB 4 dB 6 dB : External source 0.63 V 0.8 V 1V 1.25 V 1.6 V 2V : 1 1 1 0 0 0 0 : 1 1 1 1 1 0 0 0 0 : 1 1 0 1 1 0 0 1 1 : 1 1 1 0 1 0 1 0 1 : 0 1 47 kHz 60 kHz 75 kHz 95 kHz 120 kHz 150 kHz : offset detection
Table 15. 0 0 0 1 1 1 1 : 1 1
MOD4 MOD3 MOD2 MOD1 MOD0 FM radio f
The indicated amplitude levels are approximate values. In the case of FM radio, carrier modulation is measured (MPX FM deviation). Timing is fixed with fast 30 ms release time. Depending upon reception conditions and internal offsets small modulation levels may be indicated as MOD[4:0] = 0 0000b. After AF update sampling the MOD read value is held (indicated by IFCM = 10) for easy I2C-bus read-out. The MOD detector remains active in the background. The MOD data hold is released after I2C-bus read. In the case of AM radio, carrier modulation is measured (AM). Timing is fixed with fast 30 ms release time. Modulation may exceed 100 % in cases of special modulation schemes as used by some stations. After AF update sampling, the MOD read value is held (indicated by IFCM = 10) for easy I2C-bus read-out. The MOD detector remains active in the background. The MOD data hold is released after I2C-bus read. With external source selection and VU-meter mode disabled (AVUM = 0 and COMP = 0) FM or AM modulation is indicated equal to radio mode. With external source selection and VU-meter mode enabled (AVUM = 1 or COMP = 1) the audio input level of the external source is indicated (i.e. the audio level as found on the line input pins). For stereo signals left and right channels are combined for MOD read (0.5 x L + 0.5 x R). VU-meter timing is defined by setting HTC. For AVUM control see subaddress 17h; see Table 98. In case of AF update sampling the AM or FM modulation value is indicated with data hold (indicated by IFCM = 10) for easy I2C-bus read-out. The MOD data hold is released after I2C-bus read and VU-meter indication continues.
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8.1.5 Read mode: data byte IFBW
Table 16. 7 RAGC1 Table 17. Bit 7 and 6 IFBW - format of data byte 4 6 RAGC0 5 ASIA 4 IFBW4 3 IFBW3 2 IFBW2 1 IFBW1 0 IFBW0
IFBW - data byte 4 bit description Symbol Description 00 = FM: < 0.05 mA AM: < 0.1 mA 01 = FM: 0.05 mA to 0.5 mA AM: 0.1 mA to 0.5 mA 10 = 0.5 mA to 2.5 mA 11 = > 2.5 mA RAGC[1:0] RF AGC indicator; PIN diode current on pins IAMAGC or IFMAGC
5
ASIA
ASI active; this bit indicates activity of the audio step interpolation function 0 = ASI is not active 1 = ASI step is in progress
4 to 0
IFBW[4:0]
FM IF filter bandwidth control; 57 kHz (0 0000) to 165 kHz (1 1111). The bandwidth read data equals the write data definition (at DYN = 0; see Table 28).
8.1.6 Read mode: data byte ID
Table 18. 7 IFCAPG Table 19. Bit 7 6 to 3 2 to 0 ID - format of data byte 5 6 5 4 3 2 ID2 1 ID1 0 ID0
ID - data byte 5 bit description Symbol IFCAPG ID[2:0] Description IF filter gear; read value is used for IFCAP adjustment (byte IFCAP); see Table 47 reserved device type identification 010 = TEF6903A
TEF6903A_3
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Product data sheet
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Integrated car radio
8.1.7 Read mode: data byte TEMP
Table 20. 7 TEMP7 Table 21. Bit 7 to 0 TEMP - format of data byte 6 6 TEMP6 5 TEMP5 4 TEMP4 3 TEMP3 2 TEMP2 1 TEMP1 0 TEMP0
TEMP - data byte 6 bit description Symbol Description TEMP[7:0] on-chip temperature; 1 step 1 K; relative indication
8.2 Write mode
The device is controlled by the I2C-bus. After the Integrated Circuit (IC) address the MSA byte contains the control of the tuning action via the bits MODE[2:0] and subaddressing via bits SA[4:0] (see Figure 8). All circuits are controlled by the CONTROL register. Any data change in the CONTROL register has immediate effect and will change the operation of the circuit accordingly. The subaddress range 00h to 05h includes data that may lead to audible disturbance when changed. Therefore the subaddress range 00h to 05h is not loaded in the CONTROL register directly but loaded in a BUFFER register instead. This allows the IC to take care of tuning actions and mute control, freeing the microcontroller from cumbersome controls and timings. The subaddress range of 06h onwards does not contain such critical data. I2C-bus information in this range will be loaded in the CONTROL register directly (at acknowledge of each byte). Controlled by a state machine the BUFFER data will be loaded in the CONTROL register for new settings. However at the same time the CONTROL data is loaded in the BUFFER register. This register swap action allows a fast return to the previous setting because the previous data remains available in the BUFFER register (see Figure 10, Figure 11 and Figure 12). Via MODE several operational modes can be selected for the state machine. MODE offers all standard tuning actions as well as generic control for flexibility. The state machine controls the tuner directly by controlling the I2C-bus data. Internal circuits like the IF counter, mute and weak signal processing are controlled complementary to the tuner action. The state machine operation starts at the end of transmission (P = STOP). In case a previous action is still active this is overruled and the new action defined by MODE is started immediately. When only the address byte is transmitted no action is started and no setting is changed, this can be used to test the presence of the device on the bus. To minimize the I2C-bus transmission time only bytes that include data changes need to be written. Following the MSA byte the transmission can start at any given data byte defined by the subaddress (SA) bits. In case of MODE = preset, search or load the value of buffered data that is not overwritten by the new transmission will equal the control register content, i.e. the current tuner state. Instead in case of MODE = buffer, AF update, jump, check or end any not overwritten BUFFER data remains to be the existing BUFFER register content, i.e. the previous tuner state.
TEF6903A_3
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Product data sheet
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Integrated car radio
After power-on reset, all registers, including the reserved registers, should be initialized with their default settings (see Table 22) using a preset mode tuning action (see Table 25). The tuning mute circuit is muted. An action of the state machine is required to de-mute the circuit, for this purpose preset mode (bits MODE[2:0] = 001) is best fitted since it assures fast settling of all parameters before mute is released.
Table 22. 00h 01h 02h 03h 04h 05h 06h 07h 08h 09h 0Ah 0Bh 0Ch 0Dh 0Eh 0Fh 10h 11h 12h 13h 14h 15h 16h 17h 18h 19h to 1Eh 1Fh Write mode subaddress overview Name BANDWIDTH PLLM PLLL DAA AGC BAND LEVELALGN IFCF IFCAP ACD SENSE TIMING SNC HIGHCUT SOFTMUTE RADIO INPUT VOLUME TREBLE BASS FADER OUTPUT BALANCE LOUDNESS POWER reserved TEST Default 1111 1110 0000 1000 0111 1110 0100 0000 0000 0000 0010 0000 1000 0100 0010 0000 0000 1000 0100 1010 1000 0101 0110 0110 0111 0100 0110 1111 0110 1010 0001 1010 0000 1010 0011 0000 0000 1100 0000 1100 0000 0000 0000 1111 1000 0000 0000 1100 0000 0110 0000 0000 0000 0000 Reference Section 8.2.2 Section 8.2.3 Section 8.2.3 Section 8.2.4 Section 8.2.5 Section 8.2.6 Section 8.2.8 Section 8.2.9 Section 8.2.10 Section 8.2.11 Section 8.2.12 Section 8.2.13 Section 8.2.14 Section 8.2.15 Section 8.2.16 Section 8.2.17 Section 8.2.18 Section 8.2.19 Section 8.2.20 Section 8.2.21 Section 8.2.22 Section 8.2.23 Section 8.2.24 Section 8.2.25 Section 8.2.26 Section 8.2.27 Section 8.2.28
Subaddress
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I2C-BUS
MODE
SA = 00h to 05h
SA = 06h to 1Fh
BUFFER REGISTER SA = 00h to 05h LOAD MODE DECODER PRESET, SEARCH
STATE MACHINE
AFU, JUMP, CHECK
SWAP
PRELOAD
IF COUNTER WS DETECTORS WS PROCESSING TUNING MUTE
CONTROL REGISTER SA = 00h to 05h SA = 06h to 1Fh
TUNER AND AUDIO CIRCUIT
001aab522
Fig 8. I2C-bus and state machine control
TEF6903A_3
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TEF6903A
Integrated car radio
MODE = buffer or end SA = 2 address BUFFER byte 0 byte 1 byte 2 byte 3 byte 4 byte 5 MSA byte 2 previous previous previous previous previous previous state machine stop for MODE = end only CONTROL byte 0 byte 1 byte 2 byte 3 byte 4 byte 5 current current current current current current current current current current current current
001aab523
byte 3
byte 4
P previous previous
new new new
new new new previous
Fig 9. Write without state machine action, no preload, no register swap
TEF6903A_3
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Integrated car radio
MODE = AFU, jump or check SA = 2 address BUFFER byte 0 byte 1 byte 2 byte 3 byte 4 byte 5 MSA byte 2 previous previous previous previous previous previous new new new new byte 3 byte 4 byte 5 P current current current current current current
state machine start swap CONTROL byte 0 byte 1 byte 2 byte 3 byte 4 byte 5 current current current current current current previous previous new new new new
001aab524
Fig 10. Write with state machine action and swap, no preload
TEF6903A_3
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TEF6903A
Integrated car radio
MODE = preset or search SA = 3 address BUFFER byte 0 byte 1 byte 2 byte 3 byte 4 byte 5 MSA byte 3 current current current current current current new new new byte 4 byte 5 P current current current current current current
previous previous previous previous previous previous
preload
state machine start swap
CONTROL
byte 0 byte 1 byte 2 byte 3 byte 4 byte 5
current current current current current current
current current current new new new
001aab525
Fig 11. Write with state machine action, preload and swap
TEF6903A_3
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TEF6903A
Integrated car radio
MODE = load SA = 3 address BUFFER byte 0 byte 1 byte 2 byte 3 byte 4 byte 5 MSA byte 3 current current current current current current new new new byte 4 byte 5 P current current current current current current
previous previous previous previous previous previous
preload
swap
CONTROL
byte 0 byte 1 byte 2 byte 3 byte 4 byte 5
current current current current current current
current current current new new new
001aab526
Fig 12. Write without state machine action, with preload and swap
8.2.1 Mode and subaddress byte for write
Table 23. 7 MODE2 Table 24. Bit 7 to 5 4 to 0 MSA - format of mode and subaddress byte 6 MODE1 5 MODE0 4 SA4 3 SA3 2 SA2 1 SA1 0 SA0
MSA - mode and subaddress byte bit description Symbol MODE[2:0] SA[4:0] Description mode tuning action; see Table 25 Subaddress; 0 0000 to 1 1111 = write data byte subaddress 00h to 1Fh. The subaddress value is auto-incremented and will revert from SA = 1Fh to SA = 00h. The auto-increment function cannot be disabled.
TEF6903A_3
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TEF6903A
Integrated car radio
Tuning action modes Description write BUFFER register, no state machine action, no register swap; see Figure 9 tune to new program with 60 ms mute control; swap; see Figure 13 and Figure 14; BUFFER is preloaded with CONTROL register; immediate swap; see Figure 11 tune to new program and stay muted (to release use end); swap; see Figure 15 and Figure 16; BUFFER is preloaded with CONTROL register; see Figure 11 0 0 0 1 buffer preset
Table 25. 0 0
MODE2 MODE1 MODE0 Symbol
0
1
0
search
0
1
1
AF update tune to AF program; check AF quality and tune back to main program; two register swap operations; see Figure 10, Figure 17 and Figure 18 jump check load tune to AF program in minimum time; register swap; see Figure 10, Figure 19 and Figure 20 tune to AF program and stay muted (to release use end); register swap; see Figure 10, Figure 21 and Figure 22 write CONTROL register via BUFFER; no state machine action; BUFFER is preloaded with CONTROL register; immediate swap; see Figure 12 end action; release mute; no register swap; see Figure 9 and Figure 23
1 1 1
0 0 1
0 1 0
1
1
1
end
Since buffer mode (bits MODE[2:0] = 000) does not change any tuner action or register other then those defined by the I2C-bus write transmission it generally is the mode used for writing outside the buffered subaddress range (i.e. bits SA[4:0] = 06h to 1Fh). Writing in the subaddress range of 06h to 1Fh is executed immediately and is not controlled by the state machine. Load mode does not interrupt a state machine process, the preload action changes the content of the BUFFER register which may interfere with a tuner action in progress. When a new state machine tuning action is started during a mute state of the state machine, the new action skips the unnecessary activation of mute and starts immediately with the actions that follow the mute period in the standard sequence. In this way fastest timing is possible e.g. for search tuning (see Figure 14, Figure 16, Figure 20 and Figure 22). When AF update mode is started during a mute state only the return tuning action will be performed; in combination with check mode an AF update can be created with the AF sampling time defined by I2C-bus control (see Figure 18). The FM IF2 signal path contains a digital controlled AGC function with a maximum AGC decay time of 13 ms to realize sufficient AM suppression during changing signal conditions and high modulation situations. During the settling of the AGC (e.g. after a tuning action), the gain of the FM path and the level detection can be affected. To get correct signal quality information, a minimum time of 13 ms should be used between two tuning actions.
TEF6903A_3
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TEF6903A
Integrated car radio
I2C-bus time
P 1 ms PLL 60 ms 1 ms
tuning
f1
f2
register SWAP IF counter reset quality detector reset tuning mute
WS processing '11'
FAST '11'
TAS read
'00'
'01'
'10'
'00'
001aab527
Fig 13. Preset mode
I2C-bus
time
P 1 ms
PLL
60 ms
tuning
f1
f2
register SWAP IF counter reset quality detector reset tuning mute FAST HOLD '11' '10' '11' FAST
WS processing
TAS read
'11'
'00'
001aab528
Fig 14. Preset mode, started during mute
TEF6903A_3
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Integrated car radio
I2C-bus time
P 1 ms PLL
tuning
f1
f2
register SWAP IF counter reset quality detector reset tuning mute
WS processing '11'
FAST '10' '11'
001aab529
TAS read
'00'
'01'
Fig 15. Search mode
I2C-bus time
P PLL
tuning
f1
f2
register SWAP IF counter reset quality detector reset tuning mute FAST HOLD '11' '10' '11' FAST
WS processing
TAS read
'11'
001aab530
Fig 16. Search mode, started during mute
TEF6903A_3
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I2C-bus
P 0.5 ms 1 ms PLL 2 ms PLL 1 ms
time
tuning
f1
f2
f2
f1
register SWAP IF counter reset quality detector reset IF counter hold quality detector hold tuning mute counter and detector result HOLD until I2C-bus read
WS processing
HOLD
TAS read
'00'
'01'
'10'
'11'
'10'
'00'
'00'
001aab531
Fig 17. AF update mode
I2C-bus
P 0.5 ms PLL 1 ms
time
tuning
f2
f1
register SWAP IF counter reset quality detector reset IF counter hold quality detector hold tuning mute HOLD counter and detector result HOLD until I2C-bus read
WS processing FAST TAS read '11'
'10'
'00'
'00'
001aab532
Fig 18. AF update mode, started during mute
TEF6903A_3
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Product data sheet
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TEF6903A
Integrated car radio
I2C-bus time
P 0.5 ms 1 ms PLL 1 ms
tuning
f1
f2
register SWAP IF counter reset quality detector reset tuning mute
WS processing
HOLD '01' '10' '11'
TAS read
'00'
'00'
'00'
001aab533
Fig 19. Jump mode
I2C-bus time
P PLL 0.5 ms 1 ms
tuning
f1
f2
register SWAP IF counter reset quality detector reset tuning mute HOLD FAST '11' HOLD
WS processing
TAS read
'10'
'11' '00' '00'
001aab534
Fig 20. Jump mode, started during mute
TEF6903A_3
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Integrated car radio
I2C-bus time
P 1 ms PLL
tuning
f1
f2
register SWAP IF counter reset quality detector reset tuning mute
WS processing
HOLD '11' '11'
001aab535
TAS read
'00'
'01'
'10'
Fig 21. Check mode
I2C-bus time
P PLL
tuning
f1
f2
register SWAP IF counter reset quality detector reset tuning mute HOLD FAST '11' HOLD
WS processing
TAS read
'10'
'11'
'11'
001aab536
Fig 22. Check mode, started during mute
TEF6903A_3
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I2C-bus
P 1 ms
time
tuning mute HOLD FAST '11' '00' '00'
001aab537
WS processing
TAS read
Fig 23. End mode
8.2.2 Write mode: data byte BANDWIDTH
Table 26. 7 DYN 1 Table 27. Bit 7 BANDWIDTH - format of data byte 00h with default setting (buffered) 6 BW4 1 5 BW3 1 4 BW2 1 3 BW1 1 2 BW0 1 1 TE1 1 0 TE0 0
BANDWIDTH - data byte 00h bit description Symbol DYN Description dynamic bandwidth; see Table 28 0 = FM IF bandwidth set by BW 1 = FM IF bandwidth dynamically controlled
6 to 2
BW[4:0]
FM IF bandwidth; see Table 28 DYN = 0 00h to 1Fh = FM fixed IF bandwidth 57 kHz to 165 kHz DYN = 1 00h to 0Fh = minimum dynamic bandwidth 57 kHz to 109 kHz 10h to 1Fh = maximum dynamic bandwidth 113 kHz to 165 kHz
1 and 0
TE[1:0]
threshold extension 00 = no threshold extension 01 = threshold extension low 10 = threshold extension standard 11 = threshold extension high
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FM IF bandwidth selection BW3 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 BW2 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 BW1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 BW0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 DYN = 0 57 kHz 60 kHz 64 kHz 67 kHz 71 kHz 74 kHz 78 kHz 81 kHz 85 kHz 88 kHz 92 kHz 95 kHz 99 kHz 102 kHz 106 kHz 109 kHz 113 kHz 116 kHz 120 kHz 123 kHz 127 kHz 130 kHz 134 kHz 137 kHz 141 kHz 144 kHz 148 kHz 151 kHz 155 kHz 158 kHz 162 kHz 165 kHz DYN = 1 57 kHz to 165 kHz 60 kHz to 165 kHz 64 kHz to 165 kHz 67 kHz to 165 kHz 71 kHz to 165 kHz 74 kHz to 165 kHz 78 kHz to 165 kHz 81 kHz to 165 kHz 85 kHz to 165 kHz 88 kHz to 165 kHz 92 kHz to 165 kHz 95 kHz to 165 kHz 99 kHz to 165 kHz 102 kHz to 165 kHz 106 kHz to 165 kHz 109 kHz to 165 kHz 57 kHz to 113 kHz 57 kHz to 116 kHz 57 kHz to 120 kHz 57 kHz to 123 kHz 57 kHz to 127 kHz 57 kHz to 130 kHz 57 kHz to 134 kHz 57 kHz to 137 kHz 57 kHz to 141 kHz 57 kHz to 144 kHz 57 kHz to 148 kHz 57 kHz to 151 kHz 57 kHz to 155 kHz 57 kHz to 158 kHz 57 kHz to 162 kHz 57 kHz to 165 kHz
Table 28. BW4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
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8.2.3 Write mode: data bytes PLLM and PLLL
Table 29. 7 RFGAIN 0 Table 30. 7 PLL7 0 Table 31. Bit 7 (PLLM) PLLM - format of data byte 01h with default setting (buffered) 6 PLL14 0 5 PLL13 0 4 PLL12 0 3 PLL11 1 2 PLL10 0 1 PLL9 0 0 PLL8 0
PLLL - format of data byte 02h with default setting (buffered) 6 PLL6 1 5 PLL5 1 4 PLL4 1 3 PLL3 1 2 PLL2 1 1 PLL1 1 0 PLL0 0
PLLM and PLLL - data byte 01h and data byte 02h bit description Symbol RFGAIN Description RF gain setting in FM mode 0 = standard RF gain 1 = +6 dB additional RF gain at FM mixer 1
6 to 0 (PLLM) 7 to 0 (PLLL)
PLL[14:0]
VCO programmable divider N; application range of N = 1024 to 32767; see Section 8.2.7
8.2.4 Write mode: data byte DAA
Table 32. 7 0 DAA - format of data byte 03h with default setting (buffered) 6 DAA6 1 Table 33. Bit 7 6 to 0 5 DAA5 0 4 DAA4 0 3 DAA3 0 2 DAA2 0 1 DAA1 0 0 DAA0 0
DAA - data byte 03h bit description Symbol DAA[6:0] Description reserved; 0 = normal operation RF selectivity alignment FM: alignment of antenna circuit tuning voltage (0.1 x VVCO to 2.0 x VVCO) AM: voltage Digital-to-Analog Converter (DAC) output (0.1 x 4.3 V to 2.0 x 4.3 V)
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8.2.5 Write mode: data byte AGC
Table 34. 7 AGCSW 0 Table 35. Bit 7 AGC - format of data byte 04h with default setting (buffered) 6 IFGAIN 0 AGC - data byte 04h bit description Symbol AGCSW Description RF AGC switch 0 = no control of unused RF AGC 1 = unused AM RF AGC PIN diode at FM mode, or unused FM RF AGC PIN diode at AM mode is supplied with a constant current for fixed attenuation 6 IFGAIN IF gain 0 = IF gain for low loss 10.7 MHz filter 1 = increased IF gain (3 dB) for high loss 10.7 MHz filter 5 and 4 3 and 2 AGC[1:0] reserved; 0 = normal operation setting of RF AGC threshold voltage FM mixer 1 input voltage (RMS value) 00 = 24 mV 01 = 17 mV 10 = 12 mV 11 = 9 mV AM mixer 1 input voltage (peak-to-peak value) 00 = 1000 mV 01 = 700 mV 10 = 500 mV 11 = 350 mV 1 KAGC keyed AGC FM mode 0 = keyed AGC off 1 = keyed AGC on; the AGC start level is shifted to a value 10 dB above the standard AGC start level, when the level voltage of the wanted RF signal is below the threshold level voltage for narrow-band AGC AM mode 0 = RF cascode AGC enabled with full range 1 = RF cascode AGC enabled with limited range 0 LODX FM mode: local switch 0 = standard operation (DX) 1 = forced FM RF AGC attenuation (LOCAL) AM mode: trigger signal from AM IF noise blanker to AM audio noise blanker 0 = trigger signal active for low modulation only (m < 0.05) 1 = trigger signal always active, independent of modulation
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5 0
4 0
3 AGC1 0
2 AGC0 0
1 KAGC 0
0 LODX 0
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8.2.6 Write mode: data byte BAND
Table 36. 7 BAND2 0 Table 37. Bit 7 to 5 4 to 2 1 BAND - format of data byte 05h with default setting (buffered) 6 BAND1 0 5 BAND0 1 4 FREF2 0 3 FREF1 0 2 FREF0 0 1 LOINJ 0 0 0
BAND - data byte 05h bit description Symbol Description BAND[2:0] FM and AM band selection; see Table 38 FREF[2:0] PLL reference frequency; see Table 39 LOINJ FM mixer 1 image suppression 0 = high injection image suppression 1 = low injection image suppression
0 Table 38. BAND2 0 0 0 0 1 1 1 1 Table 39. FREF2 0 0 0 0 1 1 1 1
-
reserved; 0 = normal operation
Decoding of BAND bits BAND1 0 0 1 1 0 0 1 1 Reference frequencies FREF1 0 0 1 1 0 0 1 1 FREF0 0 1 0 1 0 1 0 1 fref 100 kHz 50 kHz 25 kHz 20 kHz 10 kHz reserved reserved reserved BAND0 0 1 0 1 0 1 0 1 Divider ratio M 2 3 6 8 10 16 20 Receiver band reserved FM FM AM AM AM AM AM
Different PLL charge pump currents are used for different reference frequencies to maintain best PLL loop stability; see Table 40. Settings FREF[2:0] = 000 (100 kHz) and FREF[2:0] = 001 (50 kHz) include additional high current charge pump control to realize fast PLL locking within 1 ms.
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Charge pump source[1] FREF1 0 0 1 1 1 0 0 1 1 FREF0 0 1 0 1 1 0 1 0 1 LOINJ X X X 1 0 X X X X Charge pump fref current CP1 CP2 CP3 CP3 CP4 CP5 reserved reserved reserved 100 kHz 50 kHz 25 kHz 20 kHz 20 kHz 10 kHz
Table 40. FREF2 0 0 0 0 0 1 1 1 1
[1]
X = don't care.
8.2.7 Tuning overview
High injection LO (Europe FM, US FM and AM): ( f RF + 10.7 MHz ) x M N = ---------------------------------------------------- with LOINJ = 0 to achieve full image suppression in FM. f ref Low injection LO (Japan FM and OIRT): ( f RF - 10.7 MHz ) x M N = ---------------------------------------------------- with LOINJ = 1 to achieve full image suppression in FM. f ref f ref tuning step = -----M where: M is the divider ratio of the VCO frequency for AM mixer 1 and FM mixer 1 f VCO M = -------------- . f mixer 1
Table 41. Standard tuner settings BAND[2:0] 010 010 111 110 101 100 011 M 2 3 3 20 16 10 8 6 FREF[2:0] 000 000 011 011 100 100 100 100 fref 100 kHz 100 kHz 20 kHz 20 kHz 10 kHz 10 kHz 10 kHz 10 kHz LOINJ 0 1 1 0 0 0 0 0 Tuning step 50 kHz 33.3 kHz 6.67 kHz 1 kHz 0.625 kHz 1 kHz 1.25 kHz 1.67 kHz
Broadcast band Japan FM Eastern Europe FM (OIRT FM) AM MW and LW AM SW 120 m to 60 m AM SW 49 m to 22 m AM SW 25 m to 15 m AM SW 16 m to 11 m
Europe FM and US FM 001
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8.2.8 Write mode: data byte LEVELALGN
Table 42. 7 LST4 1 Table 43. Bit 7 to 3 2 to 0 LEVELALGN - format of data byte 06h with default setting 6 LST3 0 5 LST2 0 4 LST1 0 3 LST0 0 2 LSL2 1 1 LSL1 0 0 LSL0 0
LEVELALGN - data byte 06h bit description Symbol LST[4:0] LSL[2:0] Description level start voltage alignment level slope alignment
For I2C-bus reading of the level voltage and standard alignment see read data byte 1 (see Table 10). Level alignment should begin with slope alignment (LSL): the level slope does not change with level start alignment (LST) or broadcast band; therefore a single LSL alignment setting can be used for all FM and AM band selections. Level start may change between broadcast bands; therefore generally a separate LST alignment and setting is used for every broadcast band.
8.2.9 Write mode: data byte IFCF
Table 44. 7 IFCFA 0 Table 45. Bit 7 IFCF - format of data byte 07h with default setting 6 IFNBW 0 5 IFCF5 1 4 IFCF4 0 3 IFCF3 0 2 IFCF2 0 1 IFCF1 0 0 IFCF0 0
IFCF - data byte 07 bit description Symbol IFCFA Description FM IF filter align mode 0 = normal operation 1 = align mode (fast frequency settling)
6
IFNBW
FM IF filter narrow 0 = normal operation 1 = FM IF filter at minimum bandwidth (57 kHz)
5 to 0
IFCF[5:0]
FM IF filter center frequency alignment
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8.2.10 Write mode: data byte IFCAP
Table 46. 7 IFCAPA 0 Table 47. Bit 7 IFCAP - data byte 08h bit description Symbol IFCAPA Description FM IF filter capacitor align 0 = standard operation 1 = align mode and initialization mode (auto correct disabled) 6 to 4 3 to 0 IFCAP[3:0] reserved; 0 = normal operation IF filter capacitor. Setting of FM IF filter capacitor value by means of bit IFCAPG of read data byte 5, ID; see Table 19 (For initialization set IFCAPA = 1. For alignment set IFCAPA = 1 and check, when read bit IFCAPG changes from logic 0 to logic 1). IFCAP - format of data byte 08h with default setting 6 0 5 0 4 0 3 IFCAP3 1 2 IFCAP2 0 1 IFCAP1 0 0 IFCAP0 0
The fully integrated IF2 filter of the TEF6903A has to be aligned in order to achieve the optimum performance at all ambient conditions. 8.2.10.1 Factory alignment of bits IFCAP[3:0] FM IF filter operation point alignment: data byte IFCAP: a single alignment of the FM IF filter operation range secures an accurate and continuous frequency setting over the full temperature range and all FM bands. 1. Set bit IFCAPA to logic 1 to disable internal IFCAP control 2. Decrease IFCAP from 15 downwards until I2C-bus read bit IFCAPG (read byte 5; ID) changes from logic 1 to logic 0 3. Save this IFCAP setting as alignment value 4. Set bit IFCAPA to logic 0 to return to normal operation 8.2.10.2 Initialization of the radio During radio initialization bit IFCAPA (is logic 1) is used for writing the stored IFCAP[3:0] value. Afterwards set bit IFCAPA to a logic 0 to start normal operation. Writing of the IFCAP byte with the alignment value is allowed during radio operation but requires a setting of bit IFCAPA to logic 0. 8.2.10.3 Factory alignment of IFCF FM IF filter center frequency alignment: data byte IFCF: to correct IF frequency errors caused by an error in the crystal frequency the alignment is preferably performed for every FM band in use. A test frequency in the center of the band is preferred. An accurate alignment result is realized by testing for symmetrical filter attenuation. 1. Set RF generator level VRF = 200 V 2. Set bit IFCFA to logic 1 to enable fast settling of the filter frequency 3. Set bit IFNBW to logic 1 for accuracy (filter is set to narrow 57 kHz bandwidth) 4. Test high side of filter curve: tune to fRF - 50 kHz (Europe/USA) or fRF + 33.3 kHz (Japan/OIRT)
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5. Change IFCF from 0 to 63 and note the level read result (level voltages) 6. Test low side of filter curve: tune to fRF + 50 kHz (Europe/USA) or fRF - 33.3 kHz (Japan/OIRT) 7. Change IFCF from 0 to 63 and note the level voltages 8. Find the IFCF value where both level curves cross (lowest difference) and save this IFCF value 9. Set bits IFCFA and IFNBW to logic 0 to return to normal operation The bits IFCFA and IFNBW are intended for factory alignment use only. Normal radio operation requires a setting of bits IFCFA and IFNBW to logic 0.
8.2.11 Write mode: data byte ACD
Table 48. 7 0 Table 49. Bit 7 ACD - format of data byte 09h with default setting 6 1 5 0 4 0 3 1 2 0 1 1 0 HCSFH 0
ACDLEV ACDLAP1 ACDLAP0 ACDBAL1 ACDBAL0 ACDWAM1 ACDWAM0
ACD - data byte 09h bit description Symbol ACDLEV Description level threshold; start level of threshold extension and latch protection 0 = start at LEV = 40 (VLEVEL = 0.88 V), normal operation 1 = start at LEV = 48 (VLEVEL = 1 V)
6 and 5
ACDLAP[1:0]
latch protection limit; protect against narrow bandwidth locking at high modulation, low RF signal condition 00 = no protection 01 = low protection 10 = standard protection 11 = high protection
4 and 3
ACDBAL[1:0]
control balance; bandwidth control priority towards adjacent channel (prevent breakthrough) or towards modulation (low distortion) 00 = high adjacent channel priority 01 = medium adjacent channel priority, standard operation 10 = medium modulation priority 11 = high modulation priority
2 and 1
ACDWAM[1:0] WAM threshold; desensitize bandwidth control at detection of WAM 00 = no desensitization on WAM 01 = low sensitivity; 40 % 10 = medium sensitivity; 30 % 11 = high sensitivity; 20 %
0
HCSFH
HCC minimum bandwidth; combined control with bit HCSF; see Table 57, Table 60 and Figure 26 0 = minimum bandwidth of high cut control is 2.2 kHz or 3.3 kHz 1 = minimum bandwidth of high cut control is 3.9 kHz or 5.6 kHz
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8.2.12 Write mode: data byte SENSE
Table 50. 7 CSA3 1 Table 51. Bit 7 to 4 3 and 2 SENSE - format of data byte 0Ah with default setting 6 CSA2 0 5 CSA1 0 4 CSA0 0 3 USS1 0 2 USS0 1 1 WAS1 0 0 WAS0 1
SENSE - data byte 0Ah bit description Symbol CSA[3:0] USS[1:0] Description alignment of FM stereo channel separation USN sensitivity; USN weak signal control equivalent level voltage/frequency deviation for weak signal processing; see Figure 24 00 = -0.06 V/kHz 01 = -0.08 V/kHz 10 = -0.12 V/kHz 11 = -0.16 V/kHz
1 and 0
WAS[1:0]
WAM sensitivity; WAM weak signal control equivalent level voltage/VLEVEL (peak-to-peak) for weak signal processing; see Figure 24 00 = -7.5 01 = -10 10 = -15 11 = -20
The input control value for weak signal control derived from USN is denoted by Veq.LEVEL; equivalent level voltage. This indicates a weak signal control amount equal to the weak signal control generated by a certain VLEVEL voltage. The USS setting does not influence the I2C-bus read quality information of USN; read data byte 2, USN/WAM; see Table 12. The input control value for weak signal control derived from WAM is denoted by Veq.LEVEL; equivalent level voltage. This indicates a weak signal control amount equal to the weak signal control generated by a certain VLEVEL voltage. The WAS setting does not influence the I2C-bus read quality information of WAM; read data byte 2, USN/WAM; see Table 12.
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4 Veq. LEVEL (V) 3
001aab831
4 Veq. LEVEL (V) 3
001aab538
USS [1:0] 2 2
WAS [1:0]
11 1
10
01
00 1
11
10
01
00
0 0 I2C-bus: USN = 0 25 50 f (kHz) 75 15
0 I2C-bus: 0 0.2 0.4 VLEVEL (V) 0.6 15 WAM = 0
a. MPX signal.
b. Level variation.
Fig 24. Weak signal control sensitivity versus MPX signal at 150 kHz (USN) and level variation at 21 kHz (WAM)
8.2.13 Write mode: data byte TIMING
Table 52. 7 STC1 1 Table 53. Bit 7 and 6 5 to 3 2 to 0
[1]
TIMING - format of data byte 0Bh with default setting 6 STC0 0 5 HTC2 1 4 HTC1 0 3 HTC0 0 2 MTC2 1 1 MTC1 1 0 MTC0 0
TIMING - data byte 0Bh bit description[1] Symbol STC[1:0] HTC[2:0] MTC[2:0] Description setting of the stereo noise control time constants; see Table 54 setting of the high cut control time constants; see Table 55 setting of the soft mute control time constants; see Table 56
During the tuning mute of the preset and search mode tuning action the time constants set by STC, HTC and MTC change to tattack = 50 ms and trecovery = 50 ms to enable fast settling of the weak signal processing to new conditions.
Table 54. STC1 0 0 1 1
SNC weak signal processing control speed setting STC0 0 1 0 1 tattack 0.1 s 0.1 s 0.1 s 0.1 s trecovery 1.25 s 2.5 s 5s 10 s
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HCC speed setting[1] HTC1 0 0 1 1 0 0 1 1 HTC0 0 1 0 1 0 1 0 1 tattack 0.03 s 0.03 s 0.06 s 0.25 s 0.25 s 0.5 s 1s 1s trecovery 0.04 s 0.08 s 0.3 s 0.3 s 0.6 s 0.6 s 1.25 s 2.5 s
Table 55. HTC2 0 0 0 0 1 1 1 1
[1]
When for an external audio source VU-meter mode is enabled (bits AVUM or COMP are logic 1) the HTC setting controls the trecovery VU-meter timing, tattack has a fixed value of 20 ms; see Table 100.
Table 56. MTC2 0 0 0 0 1 1 1 1
[1] [2]
Soft mute weak signal processing control speed setting[1] MTC1 0 0 1 1 0 0 1 1 MTC0 0 1 0 1 0 1 0 1 tattack[2] 0.01 s 0.01 s 0.03 s 0.1 s 0.1 s 0.2 s 0.4 s 0.4 s trecovery[3] 0.01 s 0.03 s 0.1 s 0.1 s 0.2 s 0.2 s 0.4 s 0.8 s
When for an external audio source dynamic compression is enabled (bit COMP is logic 1) the MTC setting controls the trecovery compression timing, tattack has a fixed value of 20 ms; see Table 80. The attack time is the time, which the weak signal processing needs to realize a full control change for a level voltage change between HIGH level (where the weak signal processing is inactive) and 0.75 V level voltage. The recovery time is the time needed for the full control change when the level voltage rises from 0.75 V to HIGH level.
[3]
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8.2.14 Write mode: data byte SNC
Table 57. 7 SST3 0 Table 58. Bit 7 to 4 3 and 2 SNC - format of data byte 0Ch with default setting 6 SST2 1 5 SST1 1 4 SST0 1 3 SSL1 0 2 SSL0 1 1 HCMP 0 0 HCSF 0
SNC - data byte 0Ch bit description Symbol SST[3:0] SSL[1:0] Description SNC start; start setting of the stereo noise control; see Table 59 and Figure 25 SNC slope; slope setting of the stereo noise control (sep / Veq.LEVEL); see Figure 25 00 = 38 dB/V 01 = 51 dB/V 10 = 63 dB/V 11 = 72 dB/V
1
HCMP
HCC control source 0 = high cut control is only controlled by the level information 1 = high cut control is controlled by level, USN and WAM
0
HCSF
HCC minimum bandwidth; combined control with bit HCSFH; see Table 49, Table 60 and Figure 26
Table 59. SST3 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1
Start of stereo noise control weak signal processing SST2 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 SST1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 SST0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 Stereo noise control start (Veq.LEVEL) 1.88 V 1.94 V 2.00 V 2.06 V 2.13 V 2.19 V 2.25 V 2.31 V 2.38 V 2.44 V 2.5 V 2.56 V 2.63 V 2.69 V 2.75 V 2.81 V
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Table 60. HCSFH 0 0 1 1
HCC minimum bandwidth HCSF 0 1 0 1 High cut control minimum bandwidth 2.2 kHz 3.3 kHz 3.9 kHz 5.6 kHz
40 cs (dB) 30
001aab493
40 cs (dB) 30
001aab539
20 SST[3:0]
20
SSL[1:0] 10 0000 0111 1000 1111 00 0 0.5 1 1.5 2 2.5 3 Veq. LEVEL (V) 0 0.5 1 1.5 01 2 10 11 2.5 3 Veq. LEVEL (V) 10
SSL = 63 dB/V.
SST = 2.5 V.
a. Start.
b. Slope.
Fig 25. SNC start and slope settings versus equivalent level voltage; SNC detector (level, USN and WAM), USN detector and WAM detector
8.2.15 Write mode: data byte HIGHCUT
Table 61. 7 HST2 0 Table 62. Bit 7 to 5 4 and 3 HIGHCUT - format of data byte 0Dh with default setting 6 HST1 1 5 HST0 1 4 HSL1 0 3 HSL0 1 2 HCF2 1 1 HCF1 1 0 HCF0 1
HIGHCUT - data byte 0Dh bit description Symbol HST[2:0] HSL[1:0] Description HCC start; start setting of the high cut control; see Table 63 and Figure 26 HCC slope; slope setting of the high cut control (10 kHz / Veq.LEVEL); see Figure 26 00 = 9 dB/V 01 = 11 dB/V 10 = 14 dB/V 11 = 18 dB/V
2 to 0
HCF[2:0]
HCC maximum bandwidth; setting of the fixed high cut control; see Table 64, Figure 26 and Figure 27
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Start of high cut control weak signal processing HST1 0 0 1 1 0 0 1 1 Fixed high cut settings HCF1 0 0 1 1 0 0 1 1 HCF0 0 1 0 1 0 1 0 1 Fixed high cut; HCC Bmax reserved 2 kHz 3 kHz 5 kHz 7 kHz 10 kHz wide bandwidth full bandwidth HST0 0 1 0 1 0 1 0 1 High cut control start (Veq.LEVEL) 1.5 V 1.75 V 2.0 V 2.25 V 2.5 V 3.0 V 3.5 V 4.0 V
Table 63. HST2 0 0 0 0 1 1 1 1 Table 64. HCF2 0 0 0 0 1 1 1 1
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0 10 kHz (dB) 3 HST[2:0]
001aab597
0 10 kHz (dB) 3
full bandwidth wide bandwidth 10 B (kHz)
6
000 001 010 011
6
(1)
7 5
(2)
9
100
101
110
111
9
(3)
3 00 01 10 11
HSL[1:0] 12 12
(4)
2 1.5 2.5
001aad655
15 0.5
1.5
2.5 Veq.LEVEL (V)
3.5
15 0.5
Veq.LEVEL (V)
HCF = 111, HCSF = 0, HCSFH = 0, HSL = 10.
HST = 100. (1) HCSFH = 1; HCSF = 1; Bmin = 5.6 kHz. (2) HCSFH = 1; HCSF = 0; Bmin = 3.9 kHz. (3) HCSFH = 0; HCSF = 1; Bmin = 3.3 kHz. (4) HCSFH = 0; HCSF = 0; Bmin = 2.2 kHz.
a. Start.
b. Slope and minimum bandwidth.
Fig 26. High cut control start and slope settings versus equivalent level voltage; HCC detector (HCMP = 0 for level or HCMP = 1 for level, WAM and USN)
8 gain (dB) 0
001aab542
HCF[2:0] 111 110 101 100 011
-8
-16
010 001
-24 10-2
10-1
1
10 f (kHz)
102
Fig 27. Fixed high cut setting characteristics
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8.2.16 Write mode: data byte SOFTMUTE
Table 65. 7 MST2 0 Table 66. Bit 7 to 5 4 and 3 2 and 1 SOFTMUTE - format of data byte 0Eh with default setting 6 MST1 1 5 MST0 1 4 MSL1 0 3 MSL0 1 2 UMD1 0 1 UMD0 1 0 MSLE 0
SOFTMUTE - data byte 0Eh bit description Symbol MST[2:0] MSL[1:0] UMD[1:0] Description soft mute start; start setting of the soft mute; for FM see Table 67 and Figure 28; for AM see Table 68 and Figure 29 soft mute slope[1]; slope setting of the soft mute (10 kHz / Veq.LEVEL); for FM see Table 69 and Figure 28; for AM see Table 70 and Figure 29 USN soft mute depth; setting of the maximum attenuation of the USN fast soft mute control; see Figure 30 00 = 3 dB 01 = 6 dB 10 = 9 dB 11 = 12 dB
0
[1]
MSLE
soft mute slope extension; additional slope setting of the soft mute; for FM see Table 69 and Figure 28; for AM see Table 70 and Figure 29
When for an external audio source dynamic compression is enabled (bit COMP is logic 1) the MSL setting controls the compression ratio. For default 2 : 1 compression MSL = 01 is used; see Table 82.
Table 67. MST2 0 0 0 0 1 1 1 1
[1]
Start of soft mute control weak signal processing; FM mode[1] MST1 0 0 1 1 0 0 1 1 MST0 0 1 0 1 0 1 0 1 Soft mute control start (Veq.LEVEL) 0.88 V 1.0 V 1.12 V 1.25 V 1.38 V 0.75 V 0.81 V 0.94 V
When for an external audio source dynamic compression is enabled (COMP = 1) the MST setting controls the compression range. For default full compression MST = 7 is used; see Table 81.
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TEF6903A
Integrated car radio
Start of soft mute control weak signal processing; AM mode[1] MST1 0 0 1 1 0 0 1 1 MST0 0 1 0 1 0 1 0 1 Soft mute control start (Veq.LEVEL) 1.5 V 1.75 V 2.0 V 1.25 V 1.38 V 1.62 V 1.88 V 2.12 V
Table 68. MST2 0 0 0 0 1 1 1 1
[1]
When for an external audio source dynamic compression is enabled (COMP = 1) the MST setting controls the compression range. For default full compression MST = 7 is used; see Table 81.
Table 69. MSLE 0 0 0 0 1 1 1 1
[1]
Slope of soft mute control weak signal processing; FM mode[1] MSL1 0 0 1 1 0 0 1 1 MSL0 0 1 0 1 0 1 0 1 Soft mute control slope (AF / Veq.LEVEL) 8 dB/V 16 dB/V 24 dB/V 32 dB/V 40 dB/V 48 dB/V reserved reserved
When for an external audio source dynamic compression is enabled (COMP = 1) the MSL setting controls the compression range. For default 2 : 1 compression MSL = 1 is used; see Table 82.
Table 70. MSL1 0 0 0 0 1 1 1 1
[1]
Slope of soft mute control weak signal processing; AM mode[1] MSL0 0 0 1 1 0 0 1 1 MSLE 0 1 0 1 0 1 0 1 Soft mute control slope (AF / Veq.LEVEL) 8 dB/V 12 dB/V 16 dB/V 20 dB/V 24 dB/V 28 dB/V 32 dB/V 36 dB/V
When for an external audio source dynamic compression is enabled (COMP = 1) the MSL setting controls the compression range. For default 2 : 1 compression MSL = 1 is used; see Table 82.
TEF6903A_3
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Product data sheet
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52 of 110
NXP Semiconductors
TEF6903A
Integrated car radio
0 mute (dB) 12 101 110 000 111 001 010 011 100
001aad656
0 mute (dB) 6 (0) (1) (2) (3) 12
001aad658
MST[2:0]
24
(0E) (1E)
36
18
48 0.5
1.0
1.5
2.0 2.5 Veq.LEVEL (V)
24 0.5
0.75
1.0
1.25 1.5 Veq.LEVEL (V)
MSL[1:0] = 11.
MST[2:0] = 000. (0) MSLE = 0; MSL[1:0] = 00. (1) MSLE = 0; MSL[1:0] = 01. (2) MSLE = 0; MSL[1:0] = 10. (3) MSLE = 0; MSL[1:0] = 11. (0E) MSLE = 1; MSL[1:0] = 00. (1E) MSLE = 1; MSL[1:0] = 01.
a. Start.
b. Slope.
Fig 28. Soft mute start and slope settings versus equivalent level voltage (FM mode)
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Product data sheet
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TEF6903A
Integrated car radio
0 mute (dB) 12
001aad657
0 mute (dB) 6
001aad659
MST[2:0]
(0) (0E) (1)
24
36
011 100 000 101 001 110 010 111
12
(1E) (2)
18
(2E) (3) (3E) 0.75 1.0 1.25 1.5 Veq.LEVEL (V)
48 0.5
1.0
1.5
2.0 2.5 Veq.LEVEL (V)
24 0.5
MSL[1:0] = 11.
MST[2:0] = 011. (0) MSL[1:0] = 00; MSLE = 0. (0E) MSL[1:0] = 00; MSLE = 1. (1) MSL[1:0] = 01; MSLE = 0. (1E) MSL[1:0] = 01; MSLE = 1. (2) MSL[1:0] = 10; MSLE = 0. (2E) MSL[1:0] = 10; MSLE = 1. (3) MSL[1:0] = 11; MSLE = 0. (3E) MSL[1:0] = 11; MSLE = 1.
a. Start.
b. Slope.
Fig 29. Soft mute start and slope settings versus equivalent level voltage (AM mode)
0 mute (dB) 6 00
001aab544
01
10
12
11 UMD[1:0]
18 0.5
0.75
1
1.25 1.5 Veq.LEVEL (V)
MST[2:0] = 011, MSL[1:0] = 10.
Fig 30. USN soft mute depth settings; USN detector
TEF6903A_3
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Product data sheet
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NXP Semiconductors
TEF6903A
Integrated car radio
8.2.17 Write mode: data byte RADIO
Table 71. 7 0 RADIO - format of data byte 0Fh with default setting 6 MONO 0 Table 72. Bit 7 6 5 DEMP 0 4 RDCL 1 3 NBS1 1 2 NBS0 0 1 NBL1 1 0 NBL0 0
RADIO - data byte 0Fh bit description Symbol MONO Description reserved; 0 = normal operation FM forced mono; stereo decoder disable option 0 = stereo decoder is set to FM stereo 1 = stereo decoder is set to FM mono
5
DEMP
de-emphasis; selection of the de-emphasis time constant; see Figure 31 0 = de-emphasis is 75 s 1 = de-emphasis is 50 s
4
RDCL
RDS output mode 0 = direct output mode; clock output and data output; see Figure 32 1 = buffered output mode; clock input and data output of 16-bit data buffer and optional 3-bit demodulation quality (RDQ counter); see Figure 33
3 and 2
NBS[1:0]
noise blanker audio sensitivity FM audio noise blanker sensitivity setting of FM MPX ignition noise detector (peak value of noise pulse at MPX signal) 00 = 65 mV (high sensitivity) 01 = 100 mV 10 = 125 mV 11 = 160 mV (low sensitivity) AM audio noise blanker sensitivity setting of audio ignition noise detector (trigger slew rate of MPX signal) 00 = 16.5 V/ms (high sensitivity) 01 = 18.6 V/ms 10 = 21 V/ms 11 = 23.5 V/ms (low sensitivity)
TEF6903A_3
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Product data sheet
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TEF6903A
Integrated car radio
RADIO - data byte 0Fh bit description ...continued Symbol NBL[1:0] Description noise blanker IF or level sensitivity FM audio noise blanker sensitivity setting of FM level ignition noise detector (peak value of noise pulse at level voltage) 00 = 10 mV (high sensitivity) 01 = 25 mV 10 = 36 mV 11 = 50 mV (low sensitivity) AM IF noise blanker sensitivity setting of IF ignition noise detector (peak voltage of noise pulse at RF dummy aerial input) 00 = 1.4 V (low sensitivity) 01 = 1.0 V 10 = 0.7 V (high sensitivity) 11 = AM IF noise blanker disabled
Table 72. Bit 1 and 0
8 gain (dB) 0
001aab545
DEMP -8 1 -16 0
-24 10-2
10-1
1
10 f (kHz)
102
Fig 31. De-emphasis setting characteristics
RDDA output
RDCL output
4 s
> 400 s
bit slip (as may occur at poor reception)
4 s
> 400 s
001aab546
This mode is compatible with e.g. SAA6579, SAA6581, SAA770xH and TEF6890H.
Fig 32. RDS demodulator direct output mode (RDCL = 0); RDCL clock is output
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Integrated car radio
RDDA output
data available
D15
D14
D13
D1
D0
RDCL input 1 2 3 15 16
001aab547
a. The controlling microprocessor generates 16 clock pulses for output of 16 bits of buffered RDS data. This mode use is compatible with e.g. SAA770xH and TEF6890H.
data available
RDDA output
D15
D1
D0
Q2
Q1
Q0
RDCL input 1 15 16 17 18 19 20
001aab548
b. The controlling microprocessor generates 20 clock pulses for output of 16 bits of buffered RDS data, a separator bit (logic 1) and 3 bits of RDQ bit quality counter information. RDQ: 111 = good reception, 000 = poor or no reception. RDQ counter decrements on each bad quality data bit. Fig 33. RDS demodulator buffered output mode (RDCL = 1); RDCL clock is input
8.2.18 Write mode: data byte INPUT
Table 73. 7 INP3 0 Table 74. Bit 7 to 4 3 to 0 INPUT - format of data byte 10h with default setting 6 INP2 0 5 INP1 0 4 INP0 0 3 ING3 1 2 ING2 0 1 ING1 1 0 ING0 0
INPUT - data byte 10h bit description Symbol INP[3:0] ING[3:0] Description input selection; selection of the audio source for the tone/volume part; see Table 75 Input gain; -10 dB to +18 dB input gain. The ING input gain setting is added to the VOL volume setting to define the actual volume control; see Table 76.
TEF6903A_3
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Product data sheet
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NXP Semiconductors
TEF6903A
Integrated car radio
Input select INP2 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 INP1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 INP0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 Audio source for tone/volume processing radio stereo with Common Mode Rejection (CMR) (pins INAL, INAR and INAC) stereo (pins INBL and INBR) mono symmetrical or mono with CMR (pins INC and IND) stereo (pins INC and IND) mono (pin INC) mono (pin IND) stereo with CMR (pins INBL, INBR and INC) stereo symmetrical (pins INBL, INBR, INC and IND) stereo (pins INAL and INAR) mono (pin INAC) stereo symmetrical (pins INAL, INAR, INAC and INAD) stereo (pins INAC and INAD) stereo with CMR (pins INBL, INBR and INAD) mono (pin INAD) reserved
Table 75. INP3 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 Table 76. ING3 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1
[1]
Input gain setting ING2 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 ING1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 ING0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 Input gain control -10 dB[1] -8 dB -6 dB -4 dB -2 dB 0 dB 2 dB 4 dB 6 dB 8 dB 10 dB[1] 12 dB[1] 14 dB[1] 16 dB[1] 18 dB[1] mute
The input gain setting ING and the volume setting VOL define the overall volume. The overall range is limited to -83 dB to +26 dB. For overall values > +28 dB the actual gain is +28 dB. For overall values < -83 dB the circuit is muted.
TEF6903A_3
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Product data sheet
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TEF6903A
Integrated car radio
Table 77.
Input select pin use and suggested combinations of input sources[1] INAL INAR INAC INAD INBL INBR INC Audio IND source radio L R GND L R M- L- M- M L L+ L L+ R M- R+ L- L- R- R- GND L M- R R R+ GND L- R- stereo CMR stereo xxx M+ mono x symmetrical R- stereo mono mono stereo CMR stereo symmetrical stereo mono mono xxxxx symmetrical stereo stereo CMR mono xxxx xx xx xxx x x xx x x xxxxx xx Source combinations xxxxxxxxxxxxxxxx xxxxxx xxx x x x xx x x x xxxxx x x x x x x x
INP[3:0] Input pin use 0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110
[1]
M-, L- and R- indicate inverted polarity of audio signal.
8.2.19 Write mode: data byte VOLUME
Table 78. 7 COMP 0 Table 79. Bit 7 VOLUME - format of data byte 11h with default setting 6 VOL6 0 5 VOL5 1 4 VOL4 1 3 VOL3 0 2 VOL2 0 1 VOL1 0 0 VOL0 0
VOLUME - data byte 11h bit description Symbol COMP Description dynamic compression[1]; see Figure 36 0 = compression is disabled (standard use) 1 = dynamic compression is enabled
6 to 0
VOL[6:0]
volume setting (see Table 83); for balance control see data byte 16h (see Table 95), for loudness control see data byte 17h (see Table 98)
[1]
Dynamic compression can be used with external sources only. When dynamic compression is active, the radio quality detection of USN, MOD and offset is limited to AF update tuning only. For dynamic compression the bits MOD[4:0] indicate the external source input amplitude as in the VU-meter mode; AVUM; data byte 17h (see Table 98). The FM dynamic bandwidth control is disabled and a fixed bandwidth of 113 kHz is defined. However, other fixed bandwidth settings are available by DYN = 0 and the setting of BW; data byte 0h (see Table 28). The compression recovery timing is controlled by data byte 0Bh; TIMING (see Table 80). Compression start and slope are controlled by data byte 0Eh; SOFTMUTE (see Table 81 and Table 82). Standard compression requires a setting of MST = 7 and MSL = 1.
TEF6903A_3
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Product data sheet
Rev. 03 -- 3 April 2008
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NXP Semiconductors
TEF6903A
Integrated car radio
Dynamic compression timing; MTC[2:0] of data byte 0Bh; TIMING[1] MTC1 0 0 1 1 0 0 1 1 MTC0 0 1 0 1 0 1 0 1 tattack 0.02 s 0.02 s 0.02 s 0.02 s 0.02 s 0.02 s 0.02 s 0.02 s trecovery 0.03 s 0.06 s 0.2 s 5s 0.6 s 10 s 1s 2s
Table 80. MTC2 0 0 0 0 1 1 1 1
[1]
Setting MTC is also in use for setting the timing of weak signal soft mute control during radio operation.
Table 81. MST2 0 0 0 0 1 1 1 1
[1]
Dynamic compression start; MST[2:0] of data byte 0Eh; SOFTMUTE[1] MST1 0 0 1 1 0 0 1 1 MST0 0 1 0 1 0 1 0 1 Compression range reserved reserved reserved start = 4 dBV; 2 : 1 range = 2 dB start = -4 dBV; 2 : 1 range = 6 dB start = -12 dBV; 2 : 1 range = 10 dB start = -20 dBV; 2 : 1 range = 14 dB start = -34 dBV; full range (2 : 1 = 18 dB)
Setting MST is also in use for setting the start of weak signal soft mute control during radio operation.
Table 82. MSL1 0 0 1 1
[1]
Dynamic compression slope; MSL[1:0] of data byte 0Eh; SOFTMUTE[1] MSL0 0 1 0 1 Compression ratio 4 : 3; full range = 9 dB standard compression (2 : 1); full range = 18 dB 4 : 1; full range = 27 dB limiting; full range = 36 dB
Setting MSL is also in use for setting the slope of weak signal soft mute control during radio operation.
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Product data sheet
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NXP Semiconductors
TEF6903A
Integrated car radio
volume (dB) 0 (7, 0) (7, 1) (7, 2) (7, 3)
(6, 1)
(5, 1)
(4, 1)
(3, 0) (3, 1) (3, 2) (3, 3)
-10
-20 -60
-50
-40
-30
-20
-10
0 6 line input (dBV)
001aac443
1 V = 0 dBV, (MST, MSL) control.
Fig 34. Dynamic compression volume control; non-standard characteristics
volume (dB) 0
40 dB 24 dB
>1:1 2:1
-10
18 12 dB dB
-20 -60
-50
-40
-30
-20
-10
0 6 line input (dBV)
001aab835
1 V = 0 dBV, MST = 7 (MST[2:0] = 111), MSL = 1 (MSL[1:0] = 01).
Fig 35. Dynamic compression volume control; typical setting
TEF6903A_3
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Product data sheet
Rev. 03 -- 3 April 2008
61 of 110
NXP Semiconductors
TEF6903A
Integrated car radio
0 line output (dBV) -20
001aab549
-40
COMP = 1; VOL = -5 dB
-60
15 dB
COMP = 0; VOL = -20 dB
-80 -60
-40
-20
0 +6 20 line input (dBV)
1 V = 0 dBV. Dynamic compression is realized by attenuation of the volume setting. To match the audio amplitudes with and without compression a higher volume (VOL) setting should be selected when compression is activated. The VOL correction value used defines the positioning of the compression characteristic high signal attenuation and low signal amplification. In this example: COMP = 0: VOL = `user volume'; COMP = 1: VOL = `user volume' + 15.
Fig 36. Example of input to output compression Table 83. VOL6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
TEF6903A_3
Volume setting VOL5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 VOL4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 VOL3 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 VOL2 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 VOL1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 VOL0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 Volume (dB) 28[1] 27[1] 26[1] 25[1] 24[1] 23[1] 22[1] 21[1] 20[1] 19[1] 18[1] 17[1] 16[1] 15[1] 14[1] 13[1] 12[1] 11[1] 10 9
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Product data sheet
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TEF6903A
Integrated car radio
Volume setting ...continued VOL5 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 VOL4 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 VOL3 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 VOL2 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 VOL1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 VOL0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 Volume (dB) 8 7 6 5 4 3 2 1 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -10 -11 -12 -13 -14 -15 -16 -17 -18 -19 -20 -21 -22 -23 -24 -25 -26 -27 -28 -29 -30 -31 -32
(c) NXP B.V. 2008. All rights reserved.
Table 83. VOL6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
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Integrated car radio
Volume setting ...continued VOL5 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 VOL4 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 VOL3 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 VOL2 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 VOL1 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 VOL0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 Volume (dB) -33 -34 -35 -36 -37 -38 -39 -40 -41 -42 -43 -44 -45 -46 -47 -48 -49 -50 -51 -52 -53 -54 -55 -56 -57[2] -58[2] -59[2] -60[2] -61[2] -62[2] -63[2] -64[2] -65[2] -66[2] -67[2] -68[2] -69[2] -70[2] -71[2] -72[2] -73[2]
(c) NXP B.V. 2008. All rights reserved.
Table 83. VOL6 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
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Integrated car radio
Volume setting ...continued VOL5 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 VOL4 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 VOL3 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 VOL2 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 VOL1 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 VOL0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 Volume (dB) -74[1][2] -75[1][2] -76[1][2] -77[1][2] -78[1][2] -79[1][2] -80[1][2] -81[1][2] -82[1][2] -83[1][2] -84[1][2] -85[1][2] -86[1][2] -87[1][2] -88[1][2] -89[1][2] -90[1][2] -91[1][2] -92[1][2] -93[1][2] -94[1][2] -95[1][2] -96[1][2] -97[1][2] -98[1][2] mute
Table 83. VOL6 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
[1]
The overall gain is the sum of the input gain setting ING[3:0] and the volume setting VOL[6:0]. The overall gain has a range of +28 dB to -83 dB. For ING + VOL > 28 dB the overall gain is 28 dB. For ING + VOL < -83 dB the mute is active. For overall gain values below -75 dB (ING + VOL < -75 dB) the gain steps have a monotonous sequence. The values of gain set error, gain step error and gain tracking error are not specified. The minimum gain value is determined by the mute value.
[2]
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Integrated car radio
8.2.20 Write mode: data byte TREBLE
Table 84. 7 0 TREBLE - format of data byte 12h with default setting 6 TRE2 0 Table 85. Bit 7 6 to 4 3 5 TRE1 0 4 TRE0 0 3 TREM 1 2 TRF1 1 1 TRF0 0 0 0
TREBLE - data byte 12h bit description Symbol TRE[2:0] TREM Description reserved; 0 = normal operation treble setting; treble amplification or gain setting; see Table 86 and Figure 37 treble control mode; treble control of attenuation or gain; see Table 86 0 = treble mode is set to attenuation 1 = treble mode is set to gain
2 and 1
TRF[1:0]
treble frequency 00 = 8 kHz 01 = 10 kHz 10 = 12 kHz 11 = 15 kHz
0 Table 86. TRE2 TREM = 0 0 0 0 0 1 1 1 1 TREM = 1 0 0 0 0 1 1 1 1
-
reserved; 0 = normal operation
Treble control setting TRE1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 TRE0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 Treble control 0 dB -2 dB -4 dB -6 dB -8 dB -10 dB -12 dB -14 dB 0 dB 2 dB 4 dB 6 dB 8 dB 10 dB 12 dB 14 dB
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Product data sheet
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TEF6903A
Integrated car radio
16 gain (dB) 8
001aab550
0
-8
-16 10-2
10-1
1
10 faudio (kHz)
Fig 37. Treble amplitude control characteristics; treble frequency (TRF) = 10 kHz
8.2.21 Write mode: data byte BASS
Table 87. 7 BAS3 0 Table 88. Bit 7 to 4 3 BASS - format of data byte 13h with default setting 6 BAS2 0 5 BAS1 0 4 BAS0 0 3 BASM 1 2 BAF1 1 1 BAF0 0 0 0
BASS - data byte 13h bit description Symbol BAS[3:0] BASM Description bass setting; bass amplification or gain setting; see Table 89 and Figure 38 bass control mode; bass control of attenuation or gain; see Table 89 0 = bass mode is set to attenuation 1 = bass mode is set to gain
2 and 1
BAF[1:0]
bass frequency 00 = 60 Hz 01 = 80 Hz 10 = 100 Hz 11 = 120 Hz
0
-
reserved; 0 = normal operation
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Product data sheet
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Integrated car radio
Table 89. BAS3 BASM = 0 0 0 0 0 0 0 0 0 1 1 1 BASM = 1 0 0 0 0 0 0 0 0 1 1 1
Bass control setting BAS2 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 1 1 1 1 0 0 0 BAS1 0 0 1 1 0 0 1 1 0 0 1 0 0 1 1 0 0 1 1 0 0 1 BAS0 0 1 0 1 0 1 0 1 0 1 0 0 1 0 1 0 1 0 1 0 1 0 Bass control 0 dB -2 dB -4 dB -6 dB -8 dB -10 dB -12 dB -14 dB -16 dB -18 dB -20 dB 0 dB 2 dB 4 dB 6 dB 8 dB 10 dB 12 dB 14 dB 16 dB 18 dB 20 dB
16 Gbass (dB) 8
001aab551
0
-8
-16
10-1
1
10 faudio (kHz)
102
Fig 38. Bass amplitude control characteristics; bass frequency (BAF) = 60 Hz
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Product data sheet
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Integrated car radio
8.2.22 Write mode: data byte FADER
Table 90. 7 FADM1 0 Table 91. Bit 7 and 6 FADER - format of data byte 14h with default setting 6 FADM0 0 5 FAD5 0 4 FAD4 0 3 FAD3 0 2 FAD2 0 1 FAD1 0 0 FAD0 0
FADER - data byte 14h bit description Symbol Description 00 = no fader; front output = 0 dB; rear output = 0 dB 01 = rear fader; front output = 0 dB; rear output = FAD[5:0] 10 = front fader; front output = FAD[5:0]; rear output = 0 dB 11 = output volume; front output = FAD[5:0]; rear output = FAD[5:0] FADM[1:0] fader mode; enable fader control for front or rear
5 to 0
FAD[5:0]
Fader attenuation setting; 00 0000 to 11 1111 = -1 dB to -64 dB. For output mute control see data byte 15h; OUTPUT (see Table 92).
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Product data sheet
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Integrated car radio
8.2.23 Write mode: data byte OUTPUT
Table 92. 7 EXP1 0 Table 93. Bit 7 and 6 5 OUTPUT - format of data byte 15h with default setting 6 EXP0 0 5 EXPS 0 4 OUTA 0 3 MULF 1 2 MURF 1 1 MULR 1 0 MURR 1
OUTPUT - data byte 15h bit description[1] Symbol EXP[1:0] EXPS Description external processor selection; enable I/O between tone and fader; see Table 94 and Figure 39 output selector for external processor; see Figure 39 0 = output signal from TREBLE output 1 = output signal from source selector output
4
OUTA
output gain 0 = standard output gain 1 = output gain is 3 dB
3
MULF
left front output mute 0 = output LFOUT is enabled 1 = output LFOUT is muted
2
MURF
right front output mute 0 = output RFOUT is enabled 1 = output RFOUT is muted
1
MULR
left rear output mute 0 = output LROUT is enabled 1 = output LROUT is muted
0
MURR
right rear output mute 0 = output RROUT is enabled 1 = output RROUT is muted
[1]
Output gain (OUTA) and output mute (MUxx) control is active for all signal selections. Fader control (FADM, FAD) is active for every signal selection except for the internal audio of `external I/O rear only' mode at the front output. The internal audio signal is available on output pins PLOUT and PROUT independent of the EXP bit setting. The output level on pins PLOUT and PROUT as well as the input level for pins INPL and INPR is 1 V for the maximum line output level of 1.4 V (OUTA = 0) or 2 V (OUTA = 1).
Table 94. EXP1 0 0 1 1
External processor selection EXP0 0 1 0 1 External I/O mode internal external input into tone/volume part external input into fader part external input into fader part, rear only Front output internal audio external signal via tone/volume part external signal internal signal at PLOUT/PROUT Rear output internal audio external signal via tone/volume part external signal external signal
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Product data sheet
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Integrated car radio
INPL INPR 1V EXP INPUT 2V INPUT SELECT -6 dB EXP 10 11 FRONT/REAR FADER EXP
01
INPUT GAIN, VOLUME, BALANCE, MUTE +3 dB
BASS, TREBLE, LOUDNESS
LROUT RROUT
EXPS 0
11
+3 dB (+6 dB)
LFOUT RFOUT 1.4 V (2 V) PLOUT PROUT 1V
001aab552
1
Fig 39. External processor connections
8.2.24 Write mode: data byte BALANCE
Table 95. 7 BALM 1 Table 96. Bit 7 BALANCE - format of data byte 16h with default setting 6 BAL6 0 5 BAL5 0 4 BAL4 0 3 BAL3 0 2 BAL2 0 1 BAL1 0 0 BAL0 0
BALANCE - data byte 16h bit description Symbol BALM Description balance control mode; sets the balance mode to left or right attenuation 0 = left channel is attenuated 1 = right channel is attenuated
6 to 0 Table 97. BAL6 0 0 : 1 1 1
[1]
BAL[6:0]
balance setting; see Table 97
Balance attenuation setting[1] BAL5 0 0 : 1 1 1 BAL4 0 0 : 0 0 1 BAL3 0 0 : 1 1 0 BAL2 0 0 : 1 1 0 BAL1 0 0 : 1 1 0 BAL0 0 1 : 0 1 0 Balance (dB) 0 -1 : -110 -111 mute
The maximum obtainable attenuation of volume and balance is limited to -83 dB. For VOL + BAL attenuation settings below -83 dB; mute is activated.
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Integrated car radio
8.2.25 Write mode: data byte LOUDNESS
Table 98. 7 AVUM 0 Table 99. Bit 7 LOUDNESS - format of data byte 17h with default setting 6 ASFD 0 5 0 4 LDON 0 3 LDHB 1 2 LDS2 1 1 LDS1 0 0 LDS0 0
LOUDNESS - data byte 17h bit description Symbol AVUM Description audio VU-meter mode[1] 0 = MOD read information indicates the modulation of the radio channel 1 and an external input source is selected = MOD read information will indicate the input amplitude of the selected source
6
ASFD
ASI filter disable 0 = normal operation 1 = no low-pass filter inserted during ASI
5 4
LDON
reserved; 0 = normal operation loudness on 0 = loudness control is disabled 1 = loudness control is active; loudness is controlled by the volume setting
3
LDHB
loudness high boost; see Figure 40 0 = loudness control is limited to bass gain 1 = loudness controls bass gain and treble gain
2 to 0
[1]
LDS[2:0]
loudness start setting; loudness start defines the volume setting below which loudness control is activated; see Table 101 and Figure 40
The VU-meter mode can be used with external sources only. When the VU-meter mode is active, the radio quality detection of USN, MOD and offset is limited to AF update tuning only. During VU-meter mode the bits MOD[4:0] indicate the external source input amplitude. The FM dynamic bandwidth control is disabled and a fixed bandwidth of 113 kHz is defined. However, other fixed bandwidth settings are available by DYN = 0 and the setting of BW; data byte 0h (see Table 28). See Table 100 for compression recovery timing control. VU-meter mode is automatically activated when audio compression is on (COMP = 1).
Table 100. VU-meter timing; HTC[2:0] of data byte 0Bh; TIMING[1] HTC2 0 0 0 0 1 1 1 1
[1]
HTC1 0 0 1 1 0 0 1 1
HTC0 0 1 0 1 0 1 0 1
tattack 0.02 s 0.02 s 0.02 s 0.02 s 0.02 s 0.02 s 0.02 s 0.02 s
trecovery 0.03 s 0.06 s 0.2 s 5s 0.6 s 10 s 1s 2s
Setting HTC[2:0] is also in use for setting the timing of weak signal high cut control during radio operation.
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Product data sheet
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Integrated car radio
Table 101. Loudness start LDS2 0 0 0 0 1 1 1 1 LDS1 0 0 1 1 0 0 1 1 LDS0 0 1 0 1 0 1 0 1 Start of loudness at volume setting -12 dB -16 dB -20 dB -24 dB -28 dB -32 dB -36 dB -40 dB
-12 gain (dB) -20
001aab599
-28
-36
VOL = -20 -22 -24 -26 -28 -30 -32 -34 -36 -38 -40
-44 2 x 10-2
10-1
1
f audio (kHz)
10
20
a. LDON = 1, LDHB = 0.
-12 gain (dB) -20
001aab553
-28
-36
VOL = -20 -22 -24 -26/-28 -30 -32 -34/-36 -38 -40
-44 2 x 10-2
10-1
1 f audio (kHz)
10
20
b. LDON = 1, LDHB = 1. Fig 40. Loudness control characteristics; loudness start = -20 dB, bass frequency = 60 Hz, treble frequency = 10 kHz; bass gain = 0 dB, treble gain = 0 dB
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Product data sheet
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Integrated car radio
8.2.26 Write mode: data byte POWER
Table 102. POWER - format of data byte 18h with default setting 7 0 6 STBT 0 5 STBR 0 4 ASC1 0 3 ASC0 0 2 ASI 1 1 AST1 1 0 AST0 0
Table 103. POWER - data byte 18h bit description[1] Bit 7 6 Symbol STBT Description reserved; 0 = normal operation standby tuner 0 = normal operation 1 = power consumption is reduced by disabling part of the tuner circuit; radio operation is disabled 5 STBR standby RDS demodulator 0 = normal operation 1 = RDS demodulator in Standby mode 4 and 3 ASC[1:0] ASI clock frequency 00 = 10 MHz 01 = 5 MHz 10 = 2.5 MHz 11 = 1.3 MHz 2 ASI audio step interpolation 0 = audio step interpolation is disabled 1 = audio step interpolation is enabled 1 and 0 AST[1:0] ASI step time; selection of the audio step interpolation time 00 = 1 ms 01 = 3 ms 10 = 10 ms 11 = 30 ms
[1] The power saving offered by the Standby modes is limited and is not intended to realize an effective power-down.
8.2.27 Write mode: data bytes RESERVED
Table 104. RESERVED - format of data byte 19h to 1Eh 7 0 6 0 5 0 4 0 3 0 2 0 1 0 0 0
Table 105. RESERVED - data byte 19h to 1Eh bit description[1] Bit 7 to 0
[1]
Symbol -
Description reserved; 0 = normal operation
Reserved bits may control test options for factory testing.
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Product data sheet
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Integrated car radio
8.2.28 Write mode: data byte TEST
Table 106. TEST - format of data byte 1Fh 7 RBWR 0 6 0 5 TEST5 0 4 TEST4 0 3 TEST3 0 2 TEST2 0 1 TEST1 0 0 TEST0 0
Table 107. TEST - data byte 1Fh bit description Bit 7 6 5 to 0 Symbol RBWR TEST[5:0] Description next I2C-bus read contains write register data (RBWR will be reset to logic 0 after read) reserved; 0 = normal operation test mode 00 0000 = normal operation 00 1011 = AM IF noise blanker disabled 00 1110 = AM IF noise blanker disabled 01 1001 = AM audio noise blanker and FM noise blanker disabled all other settings are reserved
9. Limiting values
Table 108. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Symbol VCC Parameter analog supply voltage on pins VCC, VCCPLL, VCCVCO, VCCRF, AMMIX2OUT1, AMMIX2OUT2, MIX1OUT1 and MIX1OUT2 voltage difference between any VCC pins supply voltage for FM filter and demodulator digital input voltage on pins SCL, SDA and ADDR voltage on all other pins storage temperature junction temperature ambient temperature electrostatic discharge voltage on all pins except VCCVCO pin VCCVCO human body model machine model human body model machine model
[1] [2] [3] [4] [5] The maximum voltage should be less than 10 V. Class 2 according to JESD22-A114D. Class B according to EIA/JESD22-A115-A. Class 1C according to JESD22-A114D. Class A according to EIA/JESD22-A115-A.
(c) NXP B.V. 2008. All rights reserved.
Conditions
Min -0.3
Max +10
Unit V
VCC VV60 VI Vn Tstg Tj Tamb Vesd
-0.3
[1]
+0.3 VCC + 0.3 +5.5 VCC + 0.3 +150 +150 +85 +2000 +200 +1750 +175
V V V V C C C V V V V
-0.3 -0.3
[1]
-0.3 -40 -40
[2] [3] [4] [5]
-2000 -200 -1750 -175
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Integrated car radio
10. Thermal characteristics
Table 109. Thermal characteristics Symbol Rth(j-a) Rth(j-c) Parameter thermal resistance from junction to case Conditions Typ 53 14 Unit K/W K/W thermal resistance from junction to ambient in free air
11. Static characteristics
Table 110. Static characteristics VCC = 8.5 V; Tamb = 25 C; unless otherwise specified. Symbol VCC Parameter analog supply voltage on pins VCC, VCCPLL, VCCVCO, VCCRF, AMMIX2OUT1, AMMIX2OUT2, MIX1OUT1 and MIX1OUT2 supply voltage for FM filter and demodulator supply current Tamb = -40 C Tamb = 25 C Tamb = 85 C ICCPLL supply current for tuning PLL Tamb = -40 C Tamb = 25 C Tamb = 85 C ICCVCO supply current for VCO Tamb = -40 C Tamb = 25 C Tamb = 85 C ICCRF supply current for RF Tamb = -40 C Tamb = 25 C Tamb = 85 C IV60 supply current for FM filter and demodulator Tamb = -40 C Tamb = 25 C Tamb = 85 C IMIX1OUT1; IMIX1OUT2 bias current of FM and AM mixer 1 at output 1 or output 2 Tamb = -40 C Tamb = 25 C Tamb = 85 C Current in AM mode ICC supply current Tamb = -40 C Tamb = 25 C Tamb = 85 C 44 58 58 58 75 mA mA mA Conditions Min 8 Typ 8.5 Max 9 Unit V Supply voltage
VV60
5.5
7.2
-
V
Current in FM mode ICC 40 2.9 10.5 22 4.3 49 49 49 4.0 3.6 3.3 2.2 2.1 2.0 12 13.5 14 28 28 28 5.3 5.7 6.0 60 5 16 16.5 18.5 34 7.5 8.0 mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA
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Product data sheet
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TEF6903A
Integrated car radio
Table 110. Static characteristics ...continued VCC = 8.5 V; Tamb = 25 C; unless otherwise specified. Symbol ICCPLL Parameter supply current for tuning PLL Conditions Tamb = -40 C Tamb = 25 C Tamb = 85 C ICCVCO supply current for VCO Tamb = -40 C Tamb = 25 C Tamb = 85 C ICCRF supply current for RF Tamb = -40 C Tamb = 25 C Tamb = 85 C IV60 supply current for FM filter and demodulator Tamb = -40 C Tamb = 25 C Tamb = 85 C IMIX1OUT1; IMIX1OUT2 bias current of FM and AM mixer 1 at output 1 or output 2 Tamb = -40 C Tamb = 25 C Tamb = 85 C IAMMIX2OUT1; bias current of AM mixer 2 at output 1 Tamb = -40 C IAMMIX2OUT2 or output 2 Tamb = 25 C Tamb = 85 C Logic pins VIH VIL Ileak(od) VOL HIGH-level input voltage (pins RDCL and ADDR) LOW-level input voltage (pins RDCL and ADDR) open-drain leakage current (pins RDCL and RDDA) LOW-level output voltage (pins RDCL and RDDA) threshold value of VCC for power-on reset open collector; IOL = 3 mA VCC drop during operation Tamb = -40 C Tamb = 25 C Tamb = 85 C 6.15 6.8 6.3 5.8 6.45 V V V 1.75 -0.2 -10 5.5 +1.0 +10 0.4 V V A V Min 2.9 6.7 6 2.6 3.7 Typ 3.9 3.6 3.2 2.2 2.1 2.0 8.8 8.8 8.8 8.0 7.8 7.5 3.6 3.45 3.3 5.5 4.6 3.7 Max 5 13 10.2 4.5 5.5 Unit mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA
Power-on reset; all registers in default setting, outputs muted, Standby mode Vth(POR)
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Product data sheet
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Integrated car radio
12. Dynamic characteristics
12.1 Dynamic characteristics of the tuner
Table 111. Dynamic characteristics of the tuner VCC = 8.5 V; Tamb = 25 C; see Figure 44; all AC values are given in RMS; unless otherwise specified. Symbol fxtal C/N Parameter crystal frequency carrier-to-noise ratio fxtal = 20.5 MHz; f = 10 kHz Conditions Min 112 Typ 20.5 Max Unit MHz dBc ---------Hz Crystal oscillator
Circuit inputs: pins XTAL1 and XTAL2 Vo(osc)(rms) Ri Ci oscillator output voltage (RMS value) real part of input impedance input capacitance VXTAL1-XTAL2 = 1 mV
[1]
80 -
100 -500 8
160 -250 -
mV pF
[1]
[1]
Tuning system; see Table 38, Table 39 and Table 41 Voltage controlled oscillator fosc(min) fosc(max) C/N minimum oscillator frequency maximum oscillator frequency carrier-to-noise ratio fosc = 200 MHz; f = 10 kHz; Q 30 fripple = 100 Hz; VCC(ripple) = 50 mV (RMS); fosc = 200 MHz; FM mode 256 98 153.6 MHz MHz dBc ---------Hz dB
RR
ripple rejection; V CC(ripple) RR = ----------------------V MPXAM
44
50
-
Charge pump: pin CPOUT; see Table 40 Isink(CP1) Isource(CP1) Isink(CP2) Isource(CP2) Isink(CP3) charge pump CP1 sink current charge pump CP1 source current charge pump CP2 sink current charge pump CP2 source current charge pump CP3 sink current charge pump CP3 source current charge pump CP4 sink current charge pump CP4 source current VCPOUT = 0.5 V to VCCPLL - 1.3 V; fref = 100 kHz VCPOUT = 0.5 V to VCCPLL - 1.3 V; fref = 100 kHz VCPOUT = 0.7 V to VCCPLL - 1.5 V; fref = 50 kHz VCPOUT = 0.7 V to VCCPLL - 1.5 V; fref = 50 kHz VCPOUT = 0.7 V to VCCPLL - 0.7 V; fref = 20 kHz or 25 kHz VCPOUT = 0.7 V to VCCPLL - 0.7 V; fref = 20 kHz or 25 kHz VCPOUT = 0.7 V to VCCPLL - 0.7 V; fref = 20 kHz VCPOUT = 0.7 V to VCCPLL - 0.7 V; fref = 20 kHz
Rev. 03 -- 3 April 2008
130 -240 270 -480 580
180 -180 360 -360 780
240 -130 480 -270 1050
A A A A A
Isource(CP3)
-1050
-780
-580
A
Isink(CP4) Isource(CP4)
TEF6903A_3
1040 -1900
1400 -1400
1900 -1040
A A
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Product data sheet
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Integrated car radio
Table 111. Dynamic characteristics of the tuner ...continued VCC = 8.5 V; Tamb = 25 C; see Figure 44; all AC values are given in RMS; unless otherwise specified. Symbol Isink(CP5) Isource(CP5) Parameter charge pump CP5 sink current charge pump CP5 source current charge pump sink current charge pump source current tuning time Conditions VCPOUT = 0.7 V to VCCPLL - 0.7 V; fref = 10 kHz VCPOUT = 0.7 V to VCCPLL - 0.7 V; fref = 10 kHz VVTUNE = 0.8 V to VCCPLL - 0.7 V VVTUNE = 0.8 V to VCCPLL - 0.7 V Europe FM and US FM band; fref = 100 kHz; fRF = 87.5 MHz to 108 MHz AM MW band; fref = 20 kHz; fRF = 0.53 MHz to 1.7 MHz Tcy inaudible AF update cycle time including 1 ms mute start and 1 ms mute release time Min 1630 -2970 Typ 2 200 -2200 Max 2970 -1630 Unit A A
Charge pump: pin VTUNE Isink Isource ttune 2070 -3780 2800 -2800 0.75 3780 -2070 1 A A ms
-
5 6
20 6.5
ms ms
Antenna Digital Auto Alignment (DAA) DAA: pin DAAOUT[2] Ileak(DAA) antenna DAA input leakage current on pin VTUNE (test mode) output voltage variation with temperature output voltage variation caused by sink current output voltage variation caused by source current settling time VVTUNE = 0.4 V to 8 V -10 +10 nA
Vo(T) Vo(sink) Vo(source)
Tamb = -40 C to +85 C; DAA[6:0] = 100 0000 VVTUNE = 4 V; IL = 50 A VVTUNE = 4 V; IL = -50 A
-30 -VLSB -VLSB
-
+30 +VLSB +VLSB
mV
tst
VDAAOUT = 0.2 V to 8.25 V; CL = 270 pF DAA[6:0] = 000 0000 DAA[6:0] = 111 1111
-
30
60
s
AM mode
Vo output voltage 8.0 30 0.5 8.5 100 V V V
FM mode
Vo(n) output noise voltage VVTUNE = 4 V; DAA[6:0] = 100 0000; B = 300 Hz to 22 kHz VVTUNE = 4 V; DAA[6:0] = 101 0101; fripple = 100 Hz; VCC(ripple) = 100 mV VVTUNE = 2 V
RR
ripple rejection
-
40
-
dB
Vo(step)
step accuracy
-0.5VLSB 0
+0.5VLSB
TEF6903A_3
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Product data sheet
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Integrated car radio
Table 111. Dynamic characteristics of the tuner ...continued VCC = 8.5 V; Tamb = 25 C; see Figure 44; all AC values are given in RMS; unless otherwise specified. Symbol Vo Parameter output voltage Conditions VVTUNE = 0.5 V; DAA[6:0] = 000 0000 VVTUNE = 4.25 V; DAA[6:0] = 111 1111 VVTUNE = 4 V DAA[6:0] = 000 0000 DAA[6:0] = 100 0000 VVTUNE = 2 V DAA[6:0] = 101 0101 DAA[6:0] = 010 1010 AM channel AM RF AGC detector A: pin AMMIX1IN; see Figure 41 VAMMIX1IN(p-p) AM AGC start level (peak-to-peak value) VAMIF2IN(p-p) IF voltage on pin AMIF2IN for AGC start (peak-to-peak value) AGC control range cascode base voltage cascode base source resistance cascode base current drive capability cascode emitter DC voltage source current sink current minimum gain at cascode AGC maximum gain at cascode AGC KAGC = 1 KAGC = 0 IVAMCASFB cascode feedback current AGC control range maximum AGC sink current AGC source current AGC sink current in FM mode fRF = 999 kHz; dummy aerial 15 pF/60 pF VIAMAGC > 1 V AGC not active AGCSW = 1 AGCSW = 0 800 4.15 2 mV V A AGC[1:0] = 00; maximum gain at cascode AGC AGC[1:0] = 00; m = 1 700 1000 1400 mV 2.45 1.3 2.74 1.46 3.05 1.6 V V 3.8 4.23 0.5 4.65 V V Min 8 Typ Max 0.5 Unit V V
AM RF AGC detector B: pin AMIF2IN; see Figure 41 m = 1; fmod = 400 Hz 0.23 V
RF cascode AGC AGC VVAMCAS RVAMCAS IVAMCAS VVAMCASFB 100 10 5 1.6 0 320 dB V k A A mV
RF PIN diode AGC current generator output: pin IAMAGC AGC Isink(max) Isource Isink(FM) 10 0.5 50 -2.5 1 100 dB mA A mA nA
TEF6903A_3
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Product data sheet
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Table 111. Dynamic characteristics of the tuner ...continued VCC = 8.5 V; Tamb = 25 C; see Figure 44; all AC values are given in RMS; unless otherwise specified. Symbol CIAMAGC Parameter source current generator output capacitance bias voltage for AM PIN diode bias source resistance maximum bias current source current sink current AM mixer 1 (IF1 = 10.7 MHz) Conditions Min Typ 3 Max Unit pF
VVDCPIN RVDCPIN Ibias(max)
4.5 20 30
5 150 -
5.5 -
V mA A
Mixer input: pins AMMIX1IN and AMMIX1DEC
Ri Ci Vi(max) input resistance input capacitance maximum input voltage 1 dB compression point of VMIX1OUT1-MIX1OUT2; m = 0
[3] [3]
10 500
13.2 3 -
16 -
k pF mV
Mixer output: pins MIX1OUT1 and MIX1OUT2
Vo(max)(p-p) gm(conv) gm(conv)(T) maximum output voltage (peak-to-peak value) conversion transconductance Io / Vi conversion transconductance variation with temperature related to Tamb = 25 C output resistance output capacitance 3rd-order intercept point RL = 2.6 k (AC load between output pins); f = 300 kHz 2nd-order intercept point equivalent input noise voltage RL = 2.6 k (AC load between output pins) band limited noise; Rgen = 750 ; noise of Rgen included; RL = 2.6 k (AC load between output pins) Tamb = -40 C Tamb = 85 C 1.75 12 2.5 1 -0.2 3.25 V mA ------V dB dB
Ro Co IP3 IP2 Vi(n)(eq)
[4] [4]
100 135 -
4 138 170 5.8
7 8
k pF dBV dBV nV ---------Hz
F
noise figure of AM mixer 1
-
4.5
7.1
dB
AM mixer 2 (IF2 = 450 kHz)
Mixer input: pins IF1IN and IF1DEC
Ri Ci Vi(max)(p) input resistance input capacitance maximum input voltage (peak value) output resistance 1 dB compression point of VAMMIX2OUT1-AMMIX2OUT2
[6] [5] [5]
1.1
330 3 1.4
-
pF V
Mixer output: pins AMMIX2OUT1 and AMMIX2OUT2
Ro
TEF6903A_3
50
-
-
k
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Product data sheet
Rev. 03 -- 3 April 2008
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NXP Semiconductors
TEF6903A
Integrated car radio
Table 111. Dynamic characteristics of the tuner ...continued VCC = 8.5 V; Tamb = 25 C; see Figure 44; all AC values are given in RMS; unless otherwise specified. Symbol Co Vo(max)(p-p) gm(conv) gm(conv)(T) Parameter output capacitance maximum output voltage VCCAMMIX2 = 8.5 V (peak-to-peak value) conversion transconductance Io / Vi conversion transconductance variation with temperature related to Tamb = 25 C Tamb = -40 C to +85 C Conditions
[6]
Min 1.2 -1
Typ 3 12 1.6 0
Max 2.1 +1
Unit pF V mA ------V dB
IP3 IP2 Vi(n)(eq)
3rd-order intercept point RL = 1.5 k (AC load between output pins); f = 300 kHz 2nd-order intercept point equivalent input noise voltage noise figure of AM mixer 2 mixer leakage current FM mode; Tamb = -40 C to +85 C RL = 1.5 k (AC load between output pins) Rgen = 330 ; noise of Rgen included; RL = 1.5 k (AC load between output pins)
134 -
137 170 15
22
dBV dBV nV ---------Hz dB A
F Ileak
-
16 -
19.5 10
AM IF2 AGC stage: pins AMIF2IN and AMIF2DEC[5] Ri Ci Vi VAGC(stop) input resistance input capacitance input voltage AGC stop voltage (input carrier voltage) sensitivity voltage m = 0.3; fmod = 400 Hz; BAF = 2.15 kHz; Rgen = 2 k (S+N)/N = 26 dB (S+N)/N = 46 dB (S+N)/N Vo THD maximum signal plus noise-to-noise ratio MPXAMOUT output voltage m = 0.3; fmod = 400 Hz; BAF = 2.15 kHz; Rgen = 2 k m = 0.3; fmod = 400 Hz; Vi = 100 V to 100 mV 54 200 60 600 60 255 0.5 90 900 320 1 V V dB mV % for = -10 dB audio attenuation at MPXAMOUT 1.6 100 2 5 10 2.4 20 k pF V mV
AM demodulator output: pin MPXAMOUT Vsens
total harmonic distortion BAF = 2.15 kHz; VAMIF2IN = 100 V to 100 mV; m = 0.8; fmod = 400 Hz AM AGC settling time output resistance output capacitance load impedance VAMIF2IN = 100 V to 100 mV VAMIF2IN = 100 mV to 100 V
tst Ro Co ZL
TEF6903A_3
10
165 440 3 -
500 -
ms ms pF k
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Product data sheet
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NXP Semiconductors
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Integrated car radio
Table 111. Dynamic characteristics of the tuner ...continued VCC = 8.5 V; Tamb = 25 C; see Figure 44; all AC values are given in RMS; unless otherwise specified. Symbol RR Parameter ripple rejection V CC(ripple) RR = ---------------------------V MPXAMOUT AM level detector output: pin LEVEL Conditions fripple = 100 Hz; VCC(ripple) = 50 mV (RMS); VAMIF2IN = 10 mV Min 20 Typ 26 Max Unit dB
Input: pins AMIF2IN and AMIF2DEC
LST level start alignment position Vi(AMIF2IN) = 95 V; level slope aligned to (800 50) mV/dec; level start aligned to VLEVEL = (1.24 0.04) V 6 25 -
VLEVEL LSL
step size for adjustment VAMIF2IN = 0 V; default setting of level starting point of level slope level slope alignment position level slope measured from Vi(AMIF2IN) = 95 V to Vi(AMIF2IN) = 950 V; level slope aligned to (800 50) mV/dec
20 0
40 -
72 7
mV -
Vstep VLEVEL(T) Ro RL CL(max) RR
step size for adjustment VAMIF2IN = 1.4 mV of level slope level voltage drift over temperature output resistance output load resistance maximum load capacitance ripple rejection V CC(ripple) RR = -------------------------V LEVEL(AC) VCC(ripple) = 50 mV (RMS); fripple = 100 Hz; VAMIF2IN = 10 mV Tamb = -40 C to +85 C
40 25 -
60 0.03 24
80 500 25 -
mV ------dec dB ----K k pF dB
AM noise blanker IF part tsup Vth suppression time at IF2 noise blanker trigger threshold IF2 = 450 kHz noise pulse at RF input (CISPR 16-1); repetition rate = 100 Hz; pulse duration 5 ns; tr and tf < 1 ns; measured at dummy aerial input (15 pF/60 pF) NBL[1:0] = 00 NBL[1:0] = 01 NBL[1:0] = 10 mth modulation threshold for maximum modulation, which blanking of audio signal triggers the blanking circuit in the audio part; LODX = 0 1.4 1.0 0.7 5 V V V % 7 15 25 s
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Product data sheet
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NXP Semiconductors
TEF6903A
Integrated car radio
Table 111. Dynamic characteristics of the tuner ...continued VCC = 8.5 V; Tamb = 25 C; see Figure 44; all AC values are given in RMS; unless otherwise specified. Symbol FM channel FM RF AGC (FM distance mode; LODX = 0) Parameter Conditions Min Typ Max Unit
Inputs: pins FMMIX1IN1 and FMMIX1IN2[7]
Vi(RF) RF input voltage for start of wideband AGC maximum AGC source current AGC[1:0] = 11 9 mV
PIN diode drive output: pin IFMAGC
Isource(max) AGC[1:0] = 00; KAGC = 0; Vi(RF) > VAGC(start); see Table 34 -15 -10 -7 mA
Isink(max) Isource
maximum AGC sink AGC[1:0] = 00; KAGC = 0 current at AGC recovery AGC source current AM mode; AGCSW = 1 AM mode; AGCSW = 0 LODX = 1 (FM local)
7 -6 -0.75 500
10 -4 0 -0.5 950
15 -2.5 -0.35 1400
mA mA mA mA mV
Voltage for narrow-band AGC: pin LEVEL
Vth threshold voltage for narrow-band AGC KAGC = 1 (keyed AGC)
FM mixer 1 (IF1 = 10.7 MHz)
Mixer input: pins FMMIX1IN1 and FMMIX1IN2[7] and mixer output: pins MIX1OUT1 and MIX1OUT2[4]
Ri Ci Ro Co Vi(RF)(max) Vi(n)(eq) gm(conv) input resistance input capacitance output resistance output capacitance maximum RF input voltage equivalent input noise voltage 1 dB compression point of FM mixer output voltage Rgen = 200 ; noise of Rgen included; RL = 2.6 k RFGAIN = 0 RFGAIN = 1 3 1.6 100 75 3.8 2.0 2 4 100 2.7 4.7 2.5 4 6 3.2 k k pF k pF mV nV ---------Hz mA ------V mA ------V K-1
conversion RFGAIN = 0 transconductance Io / Vi RFGAIN = 1
12 24 -
18 36
25 50
gm(conv)(T)
conversion transconductance variation with temperature noise figure Rgen = 300 Tamb = -40 C Tamb = 25 C Tamb = 85 C
-0.2 x 10-2 -
F
-
2.8 3.1 3.5 200 120
4.6 -
dB dB dB dBV
(c) NXP B.V. 2008. All rights reserved.
Rgen IP3
TEF6903A_3
recommended generator resistance 3rd-order intercept point RFGAIN = 0
Product data sheet
Rev. 03 -- 3 April 2008
84 of 110
NXP Semiconductors
TEF6903A
Integrated car radio
Table 111. Dynamic characteristics of the tuner ...continued VCC = 8.5 V; Tamb = 25 C; see Figure 44; all AC values are given in RMS; unless otherwise specified. Symbol IRR Parameter image rejection ratio V owanted -----------------V oimage Vo(max)(p-p) maximum output voltage (peak-to-peak value) Conditions fRFwanted = 87.5 MHz; fRFimage = 108.9 MHz Min 25 Typ 35 Max Unit dB
4.5
5.6
-
V
FM filter and demodulator Tunable filter Bmax Bmin fIF2 fIF2(T) maximum bandwidth minimum bandwidth FM IF2 center frequency alignment step size temperature dependence of IF2 center frequency DYN = 1 DYN = 0 DYN = 1 DYN = 0 -60 165 165 57 57 2 +60 kHz kHz kHz kHz kHz Hz ----K
FM demodulator
FM mixer 2 input: pins IF1IN and IF1DEC[5] and output: pin MPXAMOUT
Ri Ro RL CL Vi(max) Vi(start)(lim) Vi(sens) input resistance output resistance load resistance load capacitance maximum input voltage input voltage for start of limiting of VMPXAMOUT sensitivity input voltage AF = -3 dB f = 22.5 kHz; fmod = 1 kHz; de-emphasis = 50 s (S+N)/N = 26 dB; Rgen = 330 (S+N)/N = 46 dB (S+N)/N ultimate signal plus noise-to-noise ratio on pin MPXAMOUT f = 22.5 kHz; fmod = 1 kHz; Vi = 3 mV; de-emphasis = 50 s; B = 300 Hz to 22 kHz 75 5 41 78 V V dB 275 20 330 280 2.3 400 500 20 k pF mV V
THD fmax AM
total harmonic distortion f = 75 kHz; fmod = 1 kHz; of VMPXAMOUT Vi = 10 mV maximum FM deviation AM suppression V MPXAMOUT(FM) -------------------------------------V MPXAMOUT(AM) THD = 3 %; fmod = 1 kHz; Vi = 10 mV FM reference: f = 22.5 kHz; fmod = 1 kHz; AM: m = 0.3; fmod = 1 kHz; de-emphasis = 50 s 10 V < Vi < 1 V 100 V < Vi < 1 V
120
0.5 180
1 -
% kHz
-
40 50
-
dB dB
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TEF6903A_3
Product data sheet
Rev. 03 -- 3 April 2008
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NXP Semiconductors
TEF6903A
Integrated car radio
Table 111. Dynamic characteristics of the tuner ...continued VCC = 8.5 V; Tamb = 25 C; see Figure 44; all AC values are given in RMS; unless otherwise specified. Symbol Vo Parameter output voltage Conditions Vi = 20 V to 1 V f = 1.2 kHz; fmod = 57 kHz f = 22.5 kHz; fmod = 1 kHz fcut RR cut-off frequency ripple rejection V CC(ripple) RR = ---------------------------V MPXAMOUT FM level detector output: pin LEVEL[5] Ro RL CL LST output resistance load resistance load capacitance level start alignment position Vi(IF1IN) = 135 V; level slope aligned to (800 50) mV/dec; level start aligned to VLEVEL = (1.47 0.04) V LSL[2:0] = 100 level slope measured from Vi(IF1IN) = 135 V to Vi(IF1IN) = 1.35 mV; level slope aligned to (800 50) mV/dec Vi = 1 mV VCC(ripple) = 50 mV; fripple = 100 Hz 25 6 500 25 25 k pF CL = 0 F; RL > 20 k fripple = 100 Hz to 20 kHz; VCC(ripple) = 50 mV; VIF1IN = 3 mV
[4]
Min 180 -
Typ 7 230 65 36
Max 290 -
Unit mV mV kHz dB
VLEVEL LSL
step size of level start adjustment level slope alignment position
20 0
40 -
72 7
mV -
Vstep RR
step size of level slope adjustment ripple rejection V CC(ripple) RR = ----------------------V level(AC)
40 -
60 25
80 -
mV ------dec dB
IF counter (FM IF2 or AM IF2 counter); see Table 8 Pins IF1IN and IF1DEC[5] Vi(sens) Vi(sens)
[1] [2] [3] [4] [5] [6] [7] [8]
sensitivity voltage sensitivity voltage
FM mode AM mode; m = 0
-
5 70
10 260
V V
Pins AMIF2IN and AMIF2DEC[8]
Measured between pins XTAL1 and XTAL2. Conversion gain formula of DAA: V DAAOUT = 1.915 x -------- + 0.1 x V VTUNE where n = 0 to 127. 128
n
Input parameters of AM mixer 1 measured between pins AMMIX1IN and AMMIX1DEC. Output parameters of FM and AM mixer 1 measured between pins MIX1OUT1 and MIX1OUT2. Input parameters of FM mixer 2 measured between pins IF1IN and IF1DEC. Output parameters of AM mixer 2 measured between pins AMMIX2OUT1 and AMMIX2OUT2. Input parameters of FM mixer 1 measured between pins FMMIX1IN1 and FMMIX1IN2. Input parameters of AM mixer 2 measured between pins AMIF2IN and AMIF2DEC.
TEF6903A_3
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Product data sheet
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86 of 110
NXP Semiconductors
TEF6903A
Integrated car radio
RFIN pin diode
JFET LNA
CASCODE
RF FILTER
TRFAGC IAMAGC 9 19
VAMCASFB 22
VAMCAS 23
AMMIX1IN 25 X AM MIXER1
MIX1OUT1, MIX1OUT2 27, 28
IF1IN 35 X AM MIXER2
AMMIX2OUT1, AMMIX2OUT2 36, 37
AMIF2IN 40
detector A
AGC THRESHOLD AGC threshold AGC[1:0] AGC
TEF6903AH
detector B
008aaa008
reduce cascode AGC control range KAGC
enable 1 mA pin diode current (FM mode) AGCSW
Fig 41. AM AGC circuit
12.2 Dynamic characteristics of the sound processor
Table 112. Dynamic characteristics of the sound processor VCC = 8.5 V; Tamb = 25 C; see Figure 44; all AC values are given in RMS; treble: 10 kHz filter frequency; treble = 0 dB; bass: 60 Hz filter frequency; bass = 0 dB; faudio = 1 kHz; Gvol = 0 dB; Gfader = 0 dB; loudness off; standard output gain (byte OUTPUT; bit OUTA = 0); RL = 10 k; CL = 1 nF; internal channel; unless otherwise specified. Symbol Vo(FM) Parameter FM mono output voltage on pins LFOUT and RFOUT Conditions fMPXAMOUT = 1 kHz; 30 % FM modulation without pilot Min Typ 330 Max Unit mV Stereo decoder and AM path
Vo(AM) cs gf(L-R)
AM output voltage on fAM = 1 kHz; pins LFOUT and RFOUT 30 % AM modulation channel separation fFMMPX = 1 kHz stereo adjust for fine measure 1 kHz level for L - R adjustment of separation modulation; compare to 1 kHz level for L + R modulation CSA[3:0] = 0000 CSA[3:0] = 0001 : CSA[3:0] = 1110 CSA[3:0] = 1111
40
365 -
-
mV dB
-
0 0.2 : 2.8 3.0
-
dB dB dB dB dB
TEF6903A_3
(c) NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 03 -- 3 April 2008
87 of 110
NXP Semiconductors
TEF6903A
Integrated car radio
Table 112. Dynamic characteristics of the sound processor ...continued VCC = 8.5 V; Tamb = 25 C; see Figure 44; all AC values are given in RMS; treble: 10 kHz filter frequency; treble = 0 dB; bass: 60 Hz filter frequency; bass = 0 dB; faudio = 1 kHz; Gvol = 0 dB; Gfader = 0 dB; loudness off; standard output gain (byte OUTPUT; bit OUTA = 0); RL = 10 k; CL = 1 nF; internal channel; unless otherwise specified. Symbol S/N Parameter signal-to-noise ratio Conditions fMPXAMIN = 20 Hz to 15 kHz; referenced to 1 kHz at 91 % FM modulation; DEMP = 1 FM mode; DEMP = 1; measured with 15 kHz brick-wall low-pass filter fMPXAMIN = 200 Hz to 15 kHz VMPXAMIN = 50 %; L; pilot on VMPXAMIN = 50 %; R; pilot on Vo(bal) mono channel balance V oL -------V oR 19 pilot signal suppression 9 % pilot; fpilot = 19 kHz; referenced to 1 kHz at 91 % FM modulation; DEMP = 1 modulation off; referenced to 1 kHz at 91 % FM modulation fsc = 38 kHz fsc = 57 kHz fsc = 76 kHz PSRR power supply ripple rejection frequency response FM mode; fripple = 100 Hz; VCC(AC) = Vripple = 100 mV (RMS) FM mode fMPXAMIN = 20 Hz fMPXAMIN = 20 kHz fcut(de-em) cut-off frequency of de-emphasis filter -3 dB point; see Figure 31 DEMP = 1 ( = 50 s) DEMP = 0 ( = 75 s) mi(pilot) stereo pilot threshold modulation for automatic on switching by pilot input off voltage hysteresis of pilot threshold voltage 1.3 3.18 2.12 4.0 2.7 2 5.5 kHz kHz % % dB -0.5 -0.5 +0.5 +0.5 dB dB 35 40 50 24 50 60 dB dB dB dB 40 50 dB FM mode -1 0.3 0.3 0.3 +1 % % % dB Min 70 Typ Max Unit dB
THD
total harmonic distortion
subcarrier suppression
Vout
hyspilot Noise blanker FM part tsup(min)
minimum suppression time
-
15
-
s
TEF6903A_3
(c) NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 03 -- 3 April 2008
88 of 110
NXP Semiconductors
TEF6903A
Integrated car radio
Table 112. Dynamic characteristics of the sound processor ...continued VCC = 8.5 V; Tamb = 25 C; see Figure 44; all AC values are given in RMS; treble: 10 kHz filter frequency; treble = 0 dB; bass: 60 Hz filter frequency; bass = 0 dB; faudio = 1 kHz; Gvol = 0 dB; Gfader = 0 dB; loudness off; standard output gain (byte OUTPUT; bit OUTA = 0); RL = 10 k; CL = 1 nF; internal channel; unless otherwise specified. Symbol VMPXAMIN(M) Parameter noise blanker sensitivity at MPXAMIN input (peak value of noise pulses) Conditions tpulse = 10 s; fpulse = 100 Hz NBS[1:0] = 00 NBS[1:0] = 01 NBS[1:0] = 10 NBS[1:0] = 11 VLEVEL(M) noise blanker sensitivity at LEVEL output (peak value of noise pulses) (test mode) tpulse = 10 s; fpulse = 100 Hz NBL[1:0] = 00 NBL[1:0] = 01 NBL[1:0] = 10 NBL[1:0] = 11 AM audio part tsup(min) MAM minimum suppression time noise blanker sensitivity; triggered from pulses at MPXAMIN slew rate NBS[1:0] = 00 NBS[1:0] = 01 NBS[1:0] = 10 NBS[1:0] = 11 Weak signal processing Detectors VeqUSN/f USN equivalent voltage to frequency deviation ratio see Figure 24; fMPXAMOUT = 150 kHz; VMPXAMOUT = 250 mV; HCMP = 1 USS[1:0] = 00 USS[1:0] = 01 USS[1:0] = 10 USS[1:0] = 11 VeqWAM/VLEV(p-p) WAM equivalent voltage to peak-to-peak voltage on pin LEVEL ratio see Figure 24; VLEVEL = 200 mV (p-p) at f = 21 kHz on the level voltage; HCMP = 1 WAS[1:0] = 00 WAS[1:0] = 01 WAS[1:0] = 10 WAS[1:0] = 11 Setting of time constants for SNC, MUTE and HCC tUSN(attack) tUSN(recovery) USN detector attack time soft mute and SNC USN detector recovery time soft mute and SNC 1 1 ms ms
[1] [1]
Min -
Typ 65 100 125 160 10 25 36 50 400 16.5 18.6 21 23.5
Max -
Unit mV mV mV mV mV mV mV mV s V/ms V/ms V/ms V/ms
-
-0.06 -0.08 -0.12 -0.16
-
V/kHz V/kHz V/kHz V/kHz
-
-7.5 -10 -15 -20
-
-
TEF6903A_3
(c) NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 03 -- 3 April 2008
89 of 110
NXP Semiconductors
TEF6903A
Integrated car radio
Table 112. Dynamic characteristics of the sound processor ...continued VCC = 8.5 V; Tamb = 25 C; see Figure 44; all AC values are given in RMS; treble: 10 kHz filter frequency; treble = 0 dB; bass: 60 Hz filter frequency; bass = 0 dB; faudio = 1 kHz; Gvol = 0 dB; Gfader = 0 dB; loudness off; standard output gain (byte OUTPUT; bit OUTA = 0); RL = 10 k; CL = 1 nF; internal channel; unless otherwise specified. Symbol USS Parameter USN detector desensitization Conditions USN sensitivity setting (USS) versus level voltage (USN sensitivity setting is automatically reduced as level voltage decreases) VLEVEL > 1.25 V 1.25 V > VLEVEL > 1.125 V 1.125 V > VLEVEL > 1.0 V 1.0 V > VLEVEL tWAM(attack) tWAM(recovery) tpeak(USN)(attack) WAM detector attack time (SNC) WAM detector recovery time (SNC) peak detector attack time for USN read-out via I2C-bus 1 1 1 3 2 1 0 ms ms ms Min Typ Max Unit
tpeak(USN)(recovery) peak detector recovery time for USN read-out via I2C-bus tpeak(WAM)(attack) peak detector attack time for WAM read-out via I2C-bus
-
10
-
ms
-
1
-
ms
tpeak(WAM)(recovery) peak detector recovery time for WAM read-out via I2C-bus
-
10
-
ms
TEF6903A_3
(c) NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 03 -- 3 April 2008
90 of 110
NXP Semiconductors
TEF6903A
Integrated car radio
Table 112. Dynamic characteristics of the sound processor ...continued VCC = 8.5 V; Tamb = 25 C; see Figure 44; all AC values are given in RMS; treble: 10 kHz filter frequency; treble = 0 dB; bass: 60 Hz filter frequency; bass = 0 dB; faudio = 1 kHz; Gvol = 0 dB; Gfader = 0 dB; loudness off; standard output gain (byte OUTPUT; bit OUTA = 0); RL = 10 k; CL = 1 nF; internal channel; unless otherwise specified. Symbol Control functions Vstart(mute) soft mute start voltage FM mode; see Figure 28; equivalent level voltage that causes mute = 3 dB; MSL[1:0] = 11 MST[2:0] = 000 MST[2:0] = 001 MST[2:0] = 010 MST[2:0] = 011 MST[2:0] = 100 MST[2:0] = 101 MST[2:0] = 110 MST[2:0] = 111 AM mode; see Figure 29; equivalent level voltage that causes mute = 3 dB; MSL[1:0] = 11 MST[2:0] = 000 MST[2:0] = 001 MST[2:0] = 010 MST[2:0] = 011 MST[2:0] = 100 MST[2:0] = 101 MST[2:0] = 110 MST[2:0] = 111 1.35 1.58 1.80 1.12 1.25 1.50 1.70 1.91 V V V V V V V V 0.75 0.88 1 1.12 1.25 0.68 0.73 0.85 V V V V V V V V Parameter Conditions Min Typ Max Unit
TEF6903A_3
(c) NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 03 -- 3 April 2008
91 of 110
NXP Semiconductors
TEF6903A
Integrated car radio
Table 112. Dynamic characteristics of the sound processor ...continued VCC = 8.5 V; Tamb = 25 C; see Figure 44; all AC values are given in RMS; treble: 10 kHz filter frequency; treble = 0 dB; bass: 60 Hz filter frequency; bass = 0 dB; faudio = 1 kHz; Gvol = 0 dB; Gfader = 0 dB; loudness off; standard output gain (byte OUTPUT; bit OUTA = 0); RL = 10 k; CL = 1 nF; internal channel; unless otherwise specified. Symbol Cmute Parameter soft mute slope Conditions FM mode; see Figure 28; slope of soft mute attenuation with respect to equivalent level voltage; MST[2:0] = 000 MSLE = 0; MSL[1:0] = 00 MSLE = 0; MSL[1:0] = 01 MSLE = 0; MSL[1:0] = 10 MSLE = 0; MSL[1:0] = 11 MSLE = 1; MSL[1:0] = 00 MSLE = 1; MSL[1:0] = 01 AM mode; see Figure 29; slope of soft mute attenuation with respect to equivalent level voltage; MST[2:0] = 011 MSLE = 0; MSL[1:0] = 00 MSLE = 0; MSL[1:0] = 01 MSLE = 0; MSL[1:0] = 10 MSLE = 0; MSL[1:0] = 11 MSLE = 1; MSL[1:0] = 00 MSLE = 1; MSL[1:0] = 01 MSLE = 1; MSL[1:0] = 10 MSLE = 1; MSL[1:0] = 11 mute(max) maximum soft mute attenuation by USN see Figure 30; fMPXAMOUT = 150 kHz; VMPXAMOUT = 0.6 V (RMS); USS[1:0] = 11 UMD[1:0] = 00 UMD[1:0] = 01 UMD[1:0] = 10 UMD[1:0] = 11 Vstart(SNC) SNC stereo blend start voltage see Figure 25; equivalent level voltage that causes channel separation is 10 dB; SSL[1:0] = 10 SST[3:0] = 0000 : SST[3:0] = 1000 : SST[3:0] = 1111 1.5 : 2.0 : 2.45 V V V V V 3 6 9 12 dB dB dB dB 8 12 16 20 24 28 32 36 dB/V dB/V dB/V dB/V dB/V dB/V dB/V dB/V 8 16 24 32 40 48 dB/V dB/V dB/V dB/V dB/V dB/V Min Typ Max Unit
C mute
mute = -------------------------V eq.LEVEL
TEF6903A_3
(c) NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 03 -- 3 April 2008
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NXP Semiconductors
TEF6903A
Integrated car radio
Table 112. Dynamic characteristics of the sound processor ...continued VCC = 8.5 V; Tamb = 25 C; see Figure 44; all AC values are given in RMS; treble: 10 kHz filter frequency; treble = 0 dB; bass: 60 Hz filter frequency; bass = 0 dB; faudio = 1 kHz; Gvol = 0 dB; Gfader = 0 dB; loudness off; standard output gain (byte OUTPUT; bit OUTA = 0); RL = 10 k; CL = 1 nF; internal channel; unless otherwise specified. Symbol CSNC Parameter SNC slope Conditions see Figure 25; slope of channel separation between 30 dB and 10 dB with respect to level voltage; SST[3:0] = 1010 SSL[1:0] = 00 SSL[1:0] = 01 SSL[1:0] = 10 SSL[1:0] = 11 Vstart(HCC) HCC start voltage see Figure 26; faudio = 10 kHz; equivalent level voltage that causes HCC = 3 dB; HSL[1:0] = 10 HST[2:0] = 000 HST[2:0] = 001 HST[2:0] = 010 HST[2:0] = 011 HST[2:0] = 100 HST[2:0] = 101 HST[2:0] = 110 HST[2:0] = 111 CHCC HCC slope see Figure 26; faudio = 10 kHz; HST[2:0] = 010 HSL[1:0] = 00 HSL[1:0] = 01 HSL[1:0] = 10 HSL[1:0] = 11 HCC(max) maximum HCC attenuation see Figure 26; faudio = 10 kHz HCSF = 1 HCSF = 0 fcut cut-off frequency of fixed see Figure 27; -3 dB point HCC (first order filter) HCF[2:0] = 000 HCF[2:0] = 001 HCF[2:0] = 010 HCF[2:0] = 011 HCF[2:0] = 100 HCF[2:0] = 101 HCF[2:0] = 110 HCF[2:0] = 111 reserved 2 3 5 7 10 wide unlimited kHz kHz kHz kHz kHz kHz 10 14 dB dB 9 11 14 18 dB/V dB/V dB/V dB/V 1.17 1.42 1.67 1.92 2.17 2.67 3.17 3.67 V V V V V V V V 38 51 63 72 dB/V dB/V dB/V dB/V Min Typ Max Unit
C SNC
cs = -------------------------V eq.LEVEL
10 kHz C HCC = -------------------------V eq.LEVEL
TEF6903A_3
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Product data sheet
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93 of 110
NXP Semiconductors
TEF6903A
Integrated car radio
Table 112. Dynamic characteristics of the sound processor ...continued VCC = 8.5 V; Tamb = 25 C; see Figure 44; all AC values are given in RMS; treble: 10 kHz filter frequency; treble = 0 dB; bass: 60 Hz filter frequency; bass = 0 dB; faudio = 1 kHz; Gvol = 0 dB; Gfader = 0 dB; loudness off; standard output gain (byte OUTPUT; bit OUTA = 0); RL = 10 k; CL = 1 nF; internal channel; unless otherwise specified. Symbol Parameter I2C-bus fMPXAMOUT = 150 kHz fMPXAMOUT = 150 kHz fLEVEL = 21 kHz 0.25 4.25 15.7 0 100 6.25 0 V V mV kHz kHz kHz mV Conditions Min Typ Max Unit Analog-to-digital converters for VLEVEL(min) VLEVEL(max) VLEVEL fUSN(min) fUSN(max) fUSN VWAM(min)(p-p)
Level analog-to-digital converter (8-bit); see Table 10 lower voltage limit of conversion range upper voltage limit of conversion range bit resolution voltage conversion range lower deviation limit conversion range upper deviation limit bit resolution lower voltage limit of conversion range (peak-to-peak value) upper voltage limit of conversion range (peak-to-peak value) bit resolution voltage (peak-to-peak value) input impedance measured unbalanced; pins INAL, INAR, INAC, INAD, INBL, INBR, INC and IND pins INPL and INPR Zo output impedance pins LFOUT, RFOUT, LROUT and RROUT pins PLOUT and PROUT Gs(main) signal gain from pins INAL, INAR, INAC, INAD, INBL, INBR, INC and IND to LFOUT, RFOUT, LROUT and RROUT signal gain external input EXP1 = 1; from pins INPL and INPR to LFOUT, RFOUT, LROUT and RROUT EXP1 = 0; EXP0 = 1; from pins INPL and INPR via tone/volume part to LFOUT, RFOUT, LROUT and RROUT
Ultrasonic noise analog-to-digital converter (4-bit); see Figure 24
Wideband AM analog-to-digital converter (4-bit); see Figure 24
VWAM(max)(p-p)
fLEVEL = 21 kHz
-
800
-
mV
VWAM(p-p)
-
53.3
-
mV
Tone/volume control Zi 110 160 k
110 -1
160 -
100 100 +1
k dB
Gs(ext)i
2
3
4
dB
5
6
7
dB
TEF6903A_3
(c) NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 03 -- 3 April 2008
94 of 110
NXP Semiconductors
TEF6903A
Integrated car radio
Table 112. Dynamic characteristics of the sound processor ...continued VCC = 8.5 V; Tamb = 25 C; see Figure 44; all AC values are given in RMS; treble: 10 kHz filter frequency; treble = 0 dB; bass: 60 Hz filter frequency; bass = 0 dB; faudio = 1 kHz; Gvol = 0 dB; Gfader = 0 dB; loudness off; standard output gain (byte OUTPUT; bit OUTA = 0); RL = 10 k; CL = 1 nF; internal channel; unless otherwise specified. Symbol Gs(ext)o Parameter signal gain to external output Conditions see Figure 39; from pins INAL, INAR, INAC, INAD, INBL, INBR, INC and IND to PLOUT and PROUT via tone/volume part; EXPS = 0 EXPS = 1 Vi(max) maximum input voltage THD = 0.2 %; Gvol = -6 dB; pins INAL, INAR, INAC, INAD, INBL, INBR, INC and IND THD = 0.2 %; pins INPL and INPR EXP1 = 1 EXP1 = 0; EXP0 = 1; Gvol -3 dB Vo(max) maximum output voltage Gvol = +6 dB THD = 0.2 % THD = 1 %; RL = 5 k; CL = 10 nF Gvol = +3 dB; OUTA = 1 (+3 dB) THD = 0.2 % THD = 0.2 %; VCC = 8.0 V RL = 5 k; CL = 10 nF; THD = 1 % RL = 5 k; CL = 10 nF; THD = 1 %; VCC = 8.0 V fmax frequency response (pins INAL, INAR, INAC, INAD, INBL, INBR, INC and IND) attenuation during ASI common mode rejection ratio upper -1 dB point; referenced to 1 kHz 2 1.6 2 1.7 20 2.2 1.8 2.25 1.9 V V V V kHz 1.4 1.4 1.8 1.8 V V 1 1 V V -4 -7 2 -3 -6 -2 -5 dB dB V Min Typ Max Unit
Vi(ext)(max)
maximum input voltage at external processor inputs
ASI CMRR
f = 20 kHz referenced to 1 kHz Gvol = 0 dB; line input capacitance Ci = 1 F faudio = 1 kHz on common mode inputs faudio = 20 Hz to 20 kHz on common mode inputs
-
0.15
1
dB
40
60 -
-
dB dB
TEF6903A_3
(c) NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 03 -- 3 April 2008
95 of 110
NXP Semiconductors
TEF6903A
Integrated car radio
Table 112. Dynamic characteristics of the sound processor ...continued VCC = 8.5 V; Tamb = 25 C; see Figure 44; all AC values are given in RMS; treble: 10 kHz filter frequency; treble = 0 dB; bass: 60 Hz filter frequency; bass = 0 dB; faudio = 1 kHz; Gvol = 0 dB; Gfader = 0 dB; loudness off; standard output gain (byte OUTPUT; bit OUTA = 0); RL = 10 k; CL = 1 nF; internal channel; unless otherwise specified. Symbol THD Parameter total harmonic distortion Conditions configured as non-inverting, single-ended inputs faudio = 20 Hz to 10 kHz; Vi = 1 V (RMS) faudio = 20 Hz to 10 kHz; Vi = 2 V (RMS); Gvol = -10 dB faudio = 25 Hz; Vi = 500 mV (RMS); Gbass = +8 dB; Gvol = 0 dB faudio = 4 kHz; Vi = 500 mV (RMS); Gtreble = +8 dB; Gvol = 0 dB cs S channel separation input isolation of one selected source to any other input faudio = 20 Hz to 20 kHz source impedance of unused input: 600 faudio = 20 Hz to 10 kHz faudio = 20 kHz Vnoise(rms) noise voltage (RMS value) ITU-R ARM-weighted and 20 kHz `brick wall' without input signal (source impedance 600 ); unbalanced Gvol = 0 dB Gbass = +6 dB; Gtreble = +6 dB; Gvol = 0 dB Gvol = +20 dB Gvol = +20 dB; balanced Gvol = -10 dB Gvol = -40 dB outputs muted using `A-weighting' filter and 20 kHz `brick wall'; Gvol = -20 dB; start of loudness = -12 dB Voffset(max) maximum DC offset between any two settings (non-consecutive) on any one audio control between any two settings (non-consecutive) on volume control; Gvol +6 dB between any two settings (non-consecutive) on input gain control; Ging +6 dB 12 24 71 100 10 9.5 5 6.8 20 35 100 140 18 13.5 12 10 V V V V V V V V 75 70 90 dB dB 0.02 0.03 0.1 0.2 % % Min Typ Max Unit
-
0.025
0.2
%
-
0.02
0.2
%
60
75
-
dB
-
7
-
mV
-
7
-
mV
-
7
-
mV
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Table 112. Dynamic characteristics of the sound processor ...continued VCC = 8.5 V; Tamb = 25 C; see Figure 44; all AC values are given in RMS; treble: 10 kHz filter frequency; treble = 0 dB; bass: 60 Hz filter frequency; bass = 0 dB; faudio = 1 kHz; Gvol = 0 dB; Gfader = 0 dB; loudness off; standard output gain (byte OUTPUT; bit OUTA = 0); RL = 10 k; CL = 1 nF; internal channel; unless otherwise specified. Symbol PSRR Parameter power supply ripple rejection Conditions VCC(AC) = Vripple = 200 mV (RMS); Gvol = 0 dB fripple = 20 Hz to 100 Hz fripple = 100 Hz to 1 kHz fripple = 1 kHz to 20 kHz fripple = 500 Hz ct td crosstalk between bus fclk = 100 kHz inputs and signal outputs delay time from VCC applied to final DC voltage at outputs input gain control see Table 76 maximum setting minimum setting Gstep(vol) Volume Gvol volume/balance gain control see Table 83 maximum setting minimum setting mute attenuation; 20 Hz to 20 kHz Gstep(vol) |Gset| Gstep(vol) |Gtrack| step resolution gain set error gain step error gain tracking error between left and right Gvol = +20 dB to -35 dB Gvol = -36 dB to -75 dB
[4] [3] [3] [3] [3] [2]
Min
Typ
Max
Unit
35 50 30 -
65 70 50 70 110 12
-
dB dB dB dB dB ms
Input gain Ging 18 -10 2 dB dB dB
step resolution
-
20 -75 -90 1 0.25 0.55 0.1 0.3 20 4 2
-80 1 3 1 1 3 -
dB dB dB dB dB dB dB dB dB dB dB dB
Gvol = +20 dB to -35 dB Gvol = -36 dB to -75 dB
-
Loudness; see Table 101 and Figure 40 Gbass Gtreble Gstep loudness bass control range loudness treble control range loudness step resolution
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Table 112. Dynamic characteristics of the sound processor ...continued VCC = 8.5 V; Tamb = 25 C; see Figure 44; all AC values are given in RMS; treble: 10 kHz filter frequency; treble = 0 dB; bass: 60 Hz filter frequency; bass = 0 dB; faudio = 1 kHz; Gvol = 0 dB; Gfader = 0 dB; loudness off; standard output gain (byte OUTPUT; bit OUTA = 0); RL = 10 k; CL = 1 nF; internal channel; unless otherwise specified. Symbol Treble ftreble treble control filter frequency see Figure 37; -3 dB frequency of maximum treble setting referenced to 100 kHz TRF[1:0] = 00 TRF[1:0] = 01 TRF[1:0] = 10 TRF[1:0] = 11 Gtreble Gstep(treble) Gstep(treble) Bass fbass bass control filter frequency at maximum gain see Figure 38 BAF[1:0] = 00 BAF[1:0] = 01 BAF[1:0] = 10 BAF[1:0] = 11 Gbass Gstep(bass) Gstep(bass) EQbow bass gain control step resolution gain bass step error equalizer bowing faudio = 1 kHz; Vi = 500 mV (RMS); Gbass = +12 dB; fbass = 60 Hz; Gtreble = +12 dB; fcut(treble) = 15 kHz see Table 91 maximum setting minimum setting output mute Gstep(fader) Gstep(fader) mute step resolution gain fader step error audio mute volume control: mute and output muted (bits MULF, MURF, MULR and MURR) 80 0 -64 1 90 -80 1 dB dB dB dB dB dB BAS[3:0] = 0111; BASM = 1 BAS[3:0] = 0111; BASM = 0 60 80 100 120 14 -14 2 1.8 0.5 Hz Hz Hz Hz dB dB dB dB dB treble gain control step resolution gain treble step error TRE[2:0] = 111; TREM = 1 TRE[2:0] = 111; TREM = 0 8 10 12 15 14 -14 2 0.5 kHz kHz kHz kHz dB dB dB dB Parameter Conditions Min Typ Max Unit
Fader Gfader fader gain control
[1]
The equivalent level voltage is that value of the level voltage (on pin LEVEL) which results in the same weak signal control effect (for instance HCC roll-off) as the output value of the specified detector (USN, WAM and multipath).
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[2] [3] [4]
Crosstalk between bus inputs and signal outputs:
The input gain setting ING and the volume setting VOL define the overall volume. The overall range is limited to -83 dB to +28 dB. For values > +28 dB the actual value is +28 dB. For overall values < -83 dB the actual value is mute. The maximum bass gain including BASS setting is +20 dB.
13. I2C-bus characteristics
The maximum I2C-bus communication speed is 400 kbit/s. SDA and SCL HIGH and LOW internal thresholds are specified according to an I2C-bus voltage range from 2.5 V to 3.3 V including I2C-bus voltage tolerances of 10 %. The bus interface tolerates also SDA and SCL signals from a 5 V bus. Restrictions for VIL in a 5 V application can be derived from Table 113.
Table 113. I2C-bus parameters Symbol VIL VIH CSDA CSCL tDOR(HL) Parameter LOW-level input voltage HIGH-level input voltage capacitance of SDA pin capacitance of SCL pin data output reaction time (acknowledge and read data) HIGH-to-LOW VDD = 5 V; I = 3 mA; Cb = 400 pF; see Figure 42 VDD = 3.3 V; Rp = 1.8 k; Cb = 400 pF; see Figure 42 VDD = 2.5 V; Rp = 35 k; Cb = 10 pF; see Figure 42 tDOR(LH) tof data output reaction time (read data) LOW-to-HIGH output fall time see Figure 42 Cb = 10 pF to 120 pF; see Figure 43 Cb 120 pF; see Figure 43
[1] [2] Minimum value of tof; Cb = total capacitance of one I2C-bus line [pF]. Typical value of tof; the output fall time tof [ns] depends on the total load capacitance Cb [pF] and the I2C-bus voltage VDD [V]: tof = 112 x VDD x Cb.
[1]
Conditions
Min 1.56 -
Typ 4 3 700
Max 1.09 6 5 863
Unit V V pF pF ns
-
570
668
ns
-
520
593
ns
-
450
488 250
ns ns ns
20 + 0.1Cb 10 x VDD 20 + 0.1Cb -
[1][2]
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SDA
0.7VDD
SCL
VIL(max) tDOR(LH)
001aac124
VIL(max) tDOR(HL)
001aab802
a. Data change from LOW to HIGH. Fig 42. Data output reaction time of the IC
b. Data change from HIGH to LOW.
VDD 0.7VDD
0.3VDD tof
001aab803
Fig 43. Definition of the fall time of the output signal
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14. Overall system parameters
Table 114. Overall system parameters Symbol ICC Parameter total supply current inclusive IV60 total supply current inclusive IV60 AM tuning frequency LW MW SW Vsens sensitivity voltage fRF = 990 kHz; m = 0.3; fmod = 1 kHz; BAF = 2.15 kHz; (S+N)/N = 26 dB; dummy aerial 15 pF/60 pF Conditions Min Typ 102 Max Unit mA Supply current in FM mode
Supply current in AM mode ICC 89 mA
AM overall system parameters ftune 144 522 2.3 50 288 1710 26.1 kHz kHz MHz V
S/N THD IP3
ultimate signal-to-noise ratio total harmonic distortion 3rd-order intercept point FM tuning frequency sensitivity voltage (RF input voltage at (S+N)/N = 26 dB) f = 22.5 kHz; fmod = 1 kHz; DEMP = 1; B = 300 Hz to 22 kHz; measured with 75 dummy antenna and test circuit 200 V < VRF < 1 V; m = 0.8; fAF = 400 Hz f = 40 kHz
54 -
58 0.4 130
1 -
dB % dBV
FM overall system parameters ftune Vsens 65 2 108 MHz V
(S+N)/N
maximum signal plus Vi = 3 mV; noise-to-noise ratio of f = 22.5 kHz; MPXAM output voltage fmod = 1 kHz; DEMP = 1; B = 300 Hz to 22 kHz; measured with 75 dummy antenna and test circuit total harmonic distortion 3rd-order intercept point f = 75 kHz f = 400 kHz
-
60
-
dB
THD IP3
-
0.5 120
1 -
% dBV
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xxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx x xxxxxxxxxxxxxx xxxxxxxxxx xxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxx xx xxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxx xxxxxxx xxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxx xxxxxxxxxxxxxx xxxxxx xx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxx xxxxx x x
Product data sheet Rev. 03 -- 3 April 2008
L2 100 nH BB207 47 k 8.2 pF 6.8 pF
TEF6903A_3
20.5 MHz 100 nF
15. Application information
NXP Semiconductors
L+ L L
R+ R R
L- L M
R- M R
C1 2.2 pF
L+ L L L
R+ R R R
L- L M M-
R- M R M+ 71 70 69
LINE INPUTS PLOUT
100 nF
PROUT
INPL
INPR
100 nF
63
62
76
75
72, 73, 74
68
67
66
65
64
54
53
56
55 ana 61 60 59 58 57
from/to EXP SEL. 1, 2 77
1 nF 270 pF BB208 L1 4.7 100 nF k
VP
vco
FM STEREO DECODER DIV fREF /2
NOISE BLANKER
HIGH CUT
DE-EMPHASIS 50 s/75 s
INPUT SELECT
EXP SEL. 1
INPUT GAIN, VOLUME, BALANCE, MUTE
LOUDNESS, BASS, TREBLE
EXP SEL. 2
F/R FADER
LFOUT RFOUT LROUT RROUT
78
hcc snc LO2 90 SNC HCC SM
soft mute
AUDIO STEP INTERPOLATION 52 VP I2C-bus
R1 10 k R2 10 k
79 80 PLL /N BAND /M LO1 90 antenna DAA 3 AM NOISE DETECTOR MOD
USN
vco
OFFS FM NOISE DETECTOR WAM
10 k 2.2 k 3.9 nF 1.2 k 100 nF 3.3 nF
1 2
MULTIPATH, LEVEL, ADJACENT CHANNEL, MODULATION AND OFFSET DETECTION WEAK SIGNAL AND FM BANDWIDTH CONTROL LOGIC BW
tuning mute TUNING STATE MACHINE I2C-BUS dig swap
51 50 49
SCL SDA
reset hold fast readhold
VP microcontroller
R3 10 k R4 10 k(1)
VP
1 nF
pll pll i.c.
RDS
RDS DEMODULATOR
48 47
RDCL RDDA
4 5 6
22 nF
n.c.
22 k 1 nF 6.8 pF
vcm 7 vtc 10 to 13
14 15
rds
LEVEL
46
45
TEF6903AH
LO1 90
LO2
90
90
ifbw FM DEMODULATOR
vcc gnd
44 43
22 nF
VP
47 F
MIXER
40 25 iFM
90
MIXER
vref
AM IF NOISE DETECTOR IF COUNT
42
1 F
16 8 FM/AM RF AGC
LO1
LO2 6v
41
47
BAP64-04
9
iAM
CASCODE CONTROL
MIXER
mix1 26
100 nF
MIXER if1 29
22 nF
AM DEMODULATOR 37 38
1 F
VP
100 nF
100 pF
rf 17
1 nF 1 F 1 nF
rf 18
38 19
100 nF
i.c. dc 20 21
22
23
24
25
27
28
34
35
36
39
22 nF
40
30, 31, 32, 33
008aaa009
82 6.8 H 10 nF 560 470 k 100 nF 220 pF
220 100 nF 15 H nF
100 nF 47 pF L3 22 nF L4
BAP70AM BC848C
TEF6903A
560 1 mH 220 nF
Integrated car radio
(c) NXP B.V. 2008. All rights reserved.
10 nF
BF862
27 pF 1.5 M
47
BAV99
VP
SFE10.7MS3
SFP450H
VP
VP
VP
102 of 110
(1) Pull-up resistor at RDCL only required for direct mode of RDS outputs.
Fig 44. Application diagram of TEF6903AH
NXP Semiconductors
TEF6903A
Integrated car radio
Table 115. List of components[1] Symbol C1 C2 C3 R1 L1 L2 L3 L4 X1 D1 D2 D3 D4 D5 T1 T2 F1 F2
[1] [2]
Component capacitor for frequency pulling capacitor for VCO tuning decoupling capacitor for VCO tuning resistor for supply V60 oscillator coil FM RF selectivity coil 10.7 MHz IF transformer 450 kHz IF transformer crystal 20.5 MHz VCO varactor diode RF selectivity varactor diode FM PIN diode AM PIN diode Electrostatic Discharge (ESD) protection diode AM Low Noise Amplifier (LNA) JFET transistor AM LNA cascode transistor 10.7 MHz ceramic filter 450 kHz ceramic filter
Type 2.2 pF[2] 270 pF 100 nF 47 ; 0.2 W E543SNAS-02010 C6342A-R11 PF670CCS-A065DX P7PSGAE-A021YBY=S LN-G102-587 BB208 BB207 BAP64-04 BAP70AM BAV99 BF862 BC847C SFELA10M7HAA0-B0 CFWLA450KGFA-B0
Manufacturer TOKO SAGAMI TOKO TOKO NDK NXP Semiconductors NXP Semiconductors NXP Semiconductors NXP Semiconductors NXP Semiconductors NXP Semiconductors NXP Semiconductors muRata muRata
All low value capacitors ( 1 nF) must be of NP0 type for guaranteed high frequency performance. The capacitor is used to achieve a crystal frequency of 20.5 MHz together with the crystal type LN-G102-587.
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16. Package outline
QFP80: plastic quad flat package; 80 leads (lead length 1.6 mm); body 14 x 14 x 2.7 mm SOT496-1
c y X A 60 61 41 40
ZE
e E HE wM pin 1 index bp L 80 1 bp D HD wM ZD B vM B 20 vM A 21 detail X Lp A A2 A1 (A 3)
e
0
5 scale
10 mm
DIMENSIONS (mm are the original dimensions) UNIT mm A max. 3 A1 0.25 0.10 A2 2.75 2.55 A3 0.25 bp 0.38 0.22 c 0.23 0.13 D (1) 14.1 13.9 E (1) 14.1 13.9 e 0.65 HD HE L 1.6 Lp 1.03 0.73 v 0.2 w 0.12 y 0.1 ZD(1) ZE(1) 1.00 0.65 1.00 0.65 7 o 0
o
17.45 17.45 16.95 16.95
Note 1. Plastic or metal protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION SOT496-1 REFERENCES IEC 135E06 JEDEC MS-022 JEITA ED-7311EE EUROPEAN PROJECTION
ISSUE DATE 98-07-01 02-10-04
Fig 45. Package outline SOT496-1 (QFP80)
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17. Soldering
This text provides a very brief insight into a complex technology. A more in-depth account of soldering ICs can be found in Application Note AN10365 "Surface mount reflow soldering description".
17.1 Introduction to soldering
Soldering is one of the most common methods through which packages are attached to Printed Circuit Boards (PCBs), to form electrical circuits. The soldered joint provides both the mechanical and the electrical connection. There is no single soldering method that is ideal for all IC packages. Wave soldering is often preferred when through-hole and Surface Mount Devices (SMDs) are mixed on one printed wiring board; however, it is not suitable for fine pitch SMDs. Reflow soldering is ideal for the small pitches and high densities that come with increased miniaturization.
17.2 Wave and reflow soldering
Wave soldering is a joining technology in which the joints are made by solder coming from a standing wave of liquid solder. The wave soldering process is suitable for the following:
* Through-hole components * Leaded or leadless SMDs, which are glued to the surface of the printed circuit board
Not all SMDs can be wave soldered. Packages with solder balls, and some leadless packages which have solder lands underneath the body, cannot be wave soldered. Also, leaded SMDs with leads having a pitch smaller than ~0.6 mm cannot be wave soldered, due to an increased probability of bridging. The reflow soldering process involves applying solder paste to a board, followed by component placement and exposure to a temperature profile. Leaded packages, packages with solder balls, and leadless packages are all reflow solderable. Key characteristics in both wave and reflow soldering are:
* * * * * *
Board specifications, including the board finish, solder masks and vias Package footprints, including solder thieves and orientation The moisture sensitivity level of the packages Package placement Inspection and repair Lead-free soldering versus PbSn soldering
17.3 Wave soldering
Key characteristics in wave soldering are:
* Process issues, such as application of adhesive and flux, clinching of leads, board
transport, the solder wave parameters, and the time during which components are exposed to the wave
* Solder bath specifications, including temperature and impurities
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17.4 Reflow soldering
Key characteristics in reflow soldering are:
* Lead-free versus SnPb soldering; note that a lead-free reflow process usually leads to
higher minimum peak temperatures (see Figure 46) than a PbSn process, thus reducing the process window
* Solder paste printing issues including smearing, release, and adjusting the process
window for a mix of large and small components on one board
* Reflow temperature profile; this profile includes preheat, reflow (in which the board is
heated to the peak temperature) and cooling down. It is imperative that the peak temperature is high enough for the solder to make reliable solder joints (a solder paste characteristic). In addition, the peak temperature must be low enough that the packages and/or boards are not damaged. The peak temperature of the package depends on package thickness and volume and is classified in accordance with Table 116 and 117
Table 116. SnPb eutectic process (from J-STD-020C) Package thickness (mm) Package reflow temperature (C) Volume (mm3) < 350 < 2.5 2.5 235 220 350 220 220
Table 117. Lead-free process (from J-STD-020C) Package thickness (mm) Package reflow temperature (C) Volume (mm3) < 350 < 1.6 1.6 to 2.5 > 2.5 260 260 250 350 to 2000 260 250 245 > 2000 260 245 245
Moisture sensitivity precautions, as indicated on the packing, must be respected at all times. Studies have shown that small packages reach higher temperatures during reflow soldering, see Figure 46.
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temperature
maximum peak temperature = MSL limit, damage level
minimum peak temperature = minimum soldering temperature
peak temperature
time
001aac844
MSL: Moisture Sensitivity Level
Fig 46. Temperature profiles for large and small components
For further information on temperature profiles, refer to Application Note AN10365 "Surface mount reflow soldering description".
18. Revision history
Table 118. Revision history Document ID TEF6903A_3 Modifications: Release date 20080403 Data sheet status Product data sheet Change notice PCN20071211003 Supersedes TEF6903A_2
* * *
The format of this data sheet has been redesigned to comply with the new identity guidelines of NXP Semiconductors. Legal texts have been adapted to the new company name where appropriate. Table 107: test mode description corrected Product data sheet TEF6903A_1 Table 22: added row 1Fh Section 8.2.27: changed 1Fh to 1Eh in table titles Section 8.2.28: added Table 111: AM demodulator output pin MPXAMOUT specification: changed values of Vo Table 112: stereo decoder and AM path specification: changed value of Vo(AM) Preliminary data sheet -
TEF6903A_2 Modifications:
20060710
* * * * *
TEF6903A_1
20060213
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19. Legal information
19.1 Data sheet status
Document status[1][2] Objective [short] data sheet Preliminary [short] data sheet Product [short] data sheet
[1] [2] [3]
Product status[3] Development Qualification Production
Definition This document contains data from the objective specification for product development. This document contains data from the preliminary specification. This document contains the product specification.
Please consult the most recently issued document before initiating or completing a design. The term `short data sheet' is explained in section "Definitions". The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple devices. The latest product status information is available on the Internet at URL http://www.nxp.com.
19.2 Definitions
Draft -- The document is a draft version only. The content is still under internal review and subject to formal approval, which may result in modifications or additions. NXP Semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information. Short data sheet -- A short data sheet is an extract from a full data sheet with the same product type number(s) and title. A short data sheet is intended for quick reference only and should not be relied upon to contain detailed and full information. For detailed and full information see the relevant full data sheet, which is available on request via the local NXP Semiconductors sales office. In case of any inconsistency or conflict with the short data sheet, the full data sheet shall prevail.
damage. NXP Semiconductors accepts no liability for inclusion and/or use of NXP Semiconductors products in such equipment or applications and therefore such inclusion and/or use is at the customer's own risk. Applications -- Applications that are described herein for any of these products are for illustrative purposes only. NXP Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. Limiting values -- Stress above one or more limiting values (as defined in the Absolute Maximum Ratings System of IEC 60134) may cause permanent damage to the device. Limiting values are stress ratings only and operation of the device at these or any other conditions above those given in the Characteristics sections of this document is not implied. Exposure to limiting values for extended periods may affect device reliability. Terms and conditions of sale -- NXP Semiconductors products are sold subject to the general terms and conditions of commercial sale, as published at http://www.nxp.com/profile/terms, including those pertaining to warranty, intellectual property rights infringement and limitation of liability, unless explicitly otherwise agreed to in writing by NXP Semiconductors. In case of any inconsistency or conflict between information in this document and such terms and conditions, the latter will prevail. No offer to sell or license -- Nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance or the grant, conveyance or implication of any license under any copyrights, patents or other industrial or intellectual property rights. Quick reference data -- The Quick reference data is an extract of the product data given in the Limiting values and Characteristics sections of this document, and as such is not complete, exhaustive or legally binding.
19.3 Disclaimers
General -- Information in this document is believed to be accurate and reliable. However, NXP Semiconductors does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. Right to make changes -- NXP Semiconductors reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. This document supersedes and replaces all information supplied prior to the publication hereof. Suitability for use -- NXP Semiconductors products are not designed, authorized or warranted to be suitable for use in medical, military, aircraft, space or life support equipment, nor in applications where failure or malfunction of an NXP Semiconductors product can reasonably be expected to result in personal injury, death or severe property or environmental
19.4 Trademarks
Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners. I2C-bus -- logo is a trademark of NXP B.V.
20. Contact information
For additional information, please visit: http://www.nxp.com For sales office addresses, send an email to: salesaddresses@nxp.com
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Integrated car radio
21. Contents
1 2 3 4 5 6 6.1 6.2 7 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 7.9 7.10 7.11 7.12 7.13 7.14 7.15 7.16 7.17 7.18 7.19 7.20 7.21 7.22 7.23 7.24 7.25 7.26 7.27 7.28 7.29 7.30 7.31 7.32 7.33 7.34 7.35 7.36 8 General description . . . . . . . . . . . . . . . . . . . . . . 1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Quick reference data . . . . . . . . . . . . . . . . . . . . . 2 Ordering information . . . . . . . . . . . . . . . . . . . . . 3 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Pinning information . . . . . . . . . . . . . . . . . . . . . . 5 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 5 Functional description . . . . . . . . . . . . . . . . . . . 7 FM mixer 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 FM RF AGC . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 FM mixer 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 FM IF2 channel filter . . . . . . . . . . . . . . . . . . . . . 8 FM limiter and level detection . . . . . . . . . . . . . . 8 FM demodulator . . . . . . . . . . . . . . . . . . . . . . . . 8 Center frequency and bandwidth tuning and center frequency DAA. . . . . . . . . . . . . . . . . . . . 8 Bandwidth control algorithm . . . . . . . . . . . . . . . 8 VCO and dividers . . . . . . . . . . . . . . . . . . . . . . . 9 Crystal oscillator . . . . . . . . . . . . . . . . . . . . . . . . 9 Tuning PLL . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Antenna DAA . . . . . . . . . . . . . . . . . . . . . . . . . . 9 AM RF AGC control . . . . . . . . . . . . . . . . . . . . . 9 AM mixer 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 AM IF noise blanker . . . . . . . . . . . . . . . . . . . . 10 AM IF AGC amplifier and demodulator . . . . . . 10 AM level detection. . . . . . . . . . . . . . . . . . . . . . 10 AM and FM level DAA. . . . . . . . . . . . . . . . . . . 10 AM and FM IF counter . . . . . . . . . . . . . . . . . . 10 Tuning mute . . . . . . . . . . . . . . . . . . . . . . . . . . 10 FM stereo decoder . . . . . . . . . . . . . . . . . . . . . 10 FM and AM AF noise blanker . . . . . . . . . . . . . 11 Fixed high cut and high cut control . . . . . . . . . 11 De-emphasis. . . . . . . . . . . . . . . . . . . . . . . . . . 11 Weak signal processing . . . . . . . . . . . . . . . . . 11 Audio step interpolation . . . . . . . . . . . . . . . . . 11 Source selector. . . . . . . . . . . . . . . . . . . . . . . . 11 VU-meter read . . . . . . . . . . . . . . . . . . . . . . . . 12 Volume and balance . . . . . . . . . . . . . . . . . . . . 12 CD compression . . . . . . . . . . . . . . . . . . . . . . . 12 Bass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Treble . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Loudness . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Fader. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 External processor I/O . . . . . . . . . . . . . . . . . . 13 RDS/RBDS demodulator . . . . . . . . . . . . . . . . 13 2C-bus protocol . . . . . . . . . . . . . . . . . . . . . . . . 13 I 8.1 Read mode. . . . . . . . . . . . . . . . . . . . . . . . . . . 8.1.1 Read mode: data byte IFCOUNTER . . . . . . . 8.1.2 Read mode: data byte LEVEL . . . . . . . . . . . . 8.1.3 Read mode: data byte USN/WAM . . . . . . . . . 8.1.4 Read mode: data byte MOD . . . . . . . . . . . . . 8.1.5 Read mode: data byte IFBW . . . . . . . . . . . . . 8.1.6 Read mode: data byte ID . . . . . . . . . . . . . . . . 8.1.7 Read mode: data byte TEMP . . . . . . . . . . . . . 8.2 Write mode. . . . . . . . . . . . . . . . . . . . . . . . . . . 8.2.1 Mode and subaddress byte for write . . . . . . . 8.2.2 Write mode: data byte BANDWIDTH . . . . . . . 8.2.3 Write mode: data bytes PLLM and PLLL . . . . 8.2.4 Write mode: data byte DAA . . . . . . . . . . . . . . 8.2.5 Write mode: data byte AGC . . . . . . . . . . . . . . 8.2.6 Write mode: data byte BAND . . . . . . . . . . . . . 8.2.7 Tuning overview . . . . . . . . . . . . . . . . . . . . . . . 8.2.8 Write mode: data byte LEVELALGN . . . . . . . 8.2.9 Write mode: data byte IFCF . . . . . . . . . . . . . . 8.2.10 Write mode: data byte IFCAP . . . . . . . . . . . . 8.2.10.1 Factory alignment of bits IFCAP[3:0] . . . . . . . 8.2.10.2 Initialization of the radio . . . . . . . . . . . . . . . . . 8.2.10.3 Factory alignment of IFCF . . . . . . . . . . . . . . . 8.2.11 Write mode: data byte ACD . . . . . . . . . . . . . . 8.2.12 Write mode: data byte SENSE. . . . . . . . . . . . 8.2.13 Write mode: data byte TIMING . . . . . . . . . . . 8.2.14 Write mode: data byte SNC . . . . . . . . . . . . . . 8.2.15 Write mode: data byte HIGHCUT. . . . . . . . . . 8.2.16 Write mode: data byte SOFTMUTE . . . . . . . . 8.2.17 Write mode: data byte RADIO . . . . . . . . . . . . 8.2.18 Write mode: data byte INPUT . . . . . . . . . . . . 8.2.19 Write mode: data byte VOLUME . . . . . . . . . . 8.2.20 Write mode: data byte TREBLE . . . . . . . . . . . 8.2.21 Write mode: data byte BASS . . . . . . . . . . . . . 8.2.22 Write mode: data byte FADER . . . . . . . . . . . . 8.2.23 Write mode: data byte OUTPUT . . . . . . . . . . 8.2.24 Write mode: data byte BALANCE . . . . . . . . . 8.2.25 Write mode: data byte LOUDNESS . . . . . . . . 8.2.26 Write mode: data byte POWER . . . . . . . . . . . 8.2.27 Write mode: data bytes RESERVED . . . . . . . 8.2.28 Write mode: data byte TEST . . . . . . . . . . . . . 9 Limiting values . . . . . . . . . . . . . . . . . . . . . . . . 10 Thermal characteristics . . . . . . . . . . . . . . . . . 11 Static characteristics . . . . . . . . . . . . . . . . . . . 12 Dynamic characteristics . . . . . . . . . . . . . . . . . 12.1 Dynamic characteristics of the tuner . . . . . . . 12.2 Dynamic characteristics of the sound processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 15 17 18 19 21 21 22 22 28 35 37 37 38 39 40 41 41 42 42 42 42 43 44 45 47 48 51 55 57 59 66 67 69 70 71 72 74 74 75 75 76 76 78 78 87
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TEF6903A_3
(c) NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 03 -- 3 April 2008
109 of 110
NXP Semiconductors
TEF6903A
Integrated car radio
13 14 15 16 17 17.1 17.2 17.3 17.4 18 19 19.1 19.2 19.3 19.4 20 21
I2C-bus characteristics . . . . . . . . . . . . . . . . . . 99 Overall system parameters . . . . . . . . . . . . . . 101 Application information. . . . . . . . . . . . . . . . . 102 Package outline . . . . . . . . . . . . . . . . . . . . . . . 104 Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105 Introduction to soldering . . . . . . . . . . . . . . . . 105 Wave and reflow soldering . . . . . . . . . . . . . . 105 Wave soldering . . . . . . . . . . . . . . . . . . . . . . . 105 Reflow soldering . . . . . . . . . . . . . . . . . . . . . . 106 Revision history . . . . . . . . . . . . . . . . . . . . . . . 107 Legal information. . . . . . . . . . . . . . . . . . . . . . 108 Data sheet status . . . . . . . . . . . . . . . . . . . . . 108 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . 108 Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 108 Contact information. . . . . . . . . . . . . . . . . . . . 108 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Please be aware that important notices concerning this document and the product(s) described herein, have been included in section `Legal information'.
(c) NXP B.V. 2008.
All rights reserved.
For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com Date of release: 3 April 2008 Document identifier: TEF6903A_3

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