View TDA1596_771262.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

INTEGRATED CIRCUITS
DATA SHEET
TDA1596 IF amplifier/demodulator for FM radio receivers
Product specification File under Integrated Circuits, IC01 April 1991
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
GENERAL DESCRIPTION
TDA1596
The TDA1596 provides IF amplification, symmetrical quadrature demodulation and level detection for quality home and car FM radio receivers and is suitable for both mono and stereo reception. It may also be applied to common front-ends, stereo decoders and AM receiver circuits. Features * Simulates behaviour of a ratio detector (internal field strength and detuning-dependent voltage for dynamic AF signal muting) * Mono/stereo blend and field strength indication control voltage * Three-state mode switch for FM, mute-on / FM, mute-off / FM-off * Internal compensation of AF signal total harmonic distortion (THD) * Two open collector stop pulse outputs for microcomputer tuning control (can be one stop pulse output by wired-ANDing) * Internal reference voltage source * Built-in hum and ripple rejection circuits QUICK REFERENCE DATA PARAMETER Supply voltage (pin 1) Supply current (pin 1) AF output voltage (RMS value) Signal-to-noise ratio V18(rms) = 10 mV V18(rms) = 10 mV; fm = 400 Hz; f = 75 kHz Total harmonic distortion V18(rms) = 10 mV; fm = 1 kHz; I7 = 0 mA; f = 75 kHz; FM mute on; without de-emphasis; without detuning Operating ambient temperature range SEE ALSO DATA SHEET FOR TDA1596T PACKAGE OUTLINE 18-lead DIL; plastic (SOT102); SOT102-1; 1996 August 06. Tamb -40 - + 85 C THD - 0.1 0.3 % S/N - 82 - dB V4(rms) 180 200 220 mV VP = 8.5 V; I2 = I7 = 0 mA IP - 20 26 mA CONDITIONS SYMBOL VP MIN. 7.5 TYP. 8.5 MAX. 12.0 UNIT V
April 1991
2
April 1991
Philips Semiconductors
IF amplifier/demodulator for FM radio receivers
3 Product specification
(1) Connecting pin 11 to ground is only allowed for measuring the current at pin 14. It is not for use in application. (2) In the FM, mute-on condition the unweighted level detector output is available from pin 3. In the FM, mute-off condition the variable resistor at pin 3 can be adjusted for minimum 2nd harmonic distortion at pin 4.
TDA1596
Fig.1 Block diagram and application circuit.
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
PINNING 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Fig.2 Pinning diagram. 17 18 VP LVA ULV AFO Vref WLV MSW DDV DMI1 DMI2 TSW ST1 ST0 MTV GND LFD1 LFD2 IFI supply voltage level voltage adjustment
TDA1596
unweighted level output/K2 adjustment AF output reference voltage output weighted level voltage output mode switch detune detector voltage demodulator input 1 demodulator input 2 tau switch stop pulse output 1 stop pulse output 0 mute voltage ground IF limiter feedback 1 IF limiter feedback 2 IF input
April 1991
4
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
FUNCTIONAL DESCRIPTION Limiter-amplifier
TDA1596
This has five stages of IF amplification using balanced differential limiter-amplifiers with emitter-follower coupling. Decoupling of the stages from the voltage supply lines and an internal high-ohmic DC feed-back loop give a very stable IF performance. The amplifier gain is virtually independent from temperature changes. FM demodulator The demodulator is fully balanced and comprises two cross-coupled differential amplifiers. Quadrature detection of the FM signal is performed by feeding one differential amplifier directly from the limiter-amplifier output, and the other via an external 90 phase-shifting network. The demodulator has good stability and its zero cross-over shift is small. The bandwidth of the demodulator output is restricted to approximately 1 MHz by an internal low-pass filter. THD compensation This circuit compensates non-linearities introduced by demodulation. For this to operate correctly the demodulator circuit between pins 9 and 10 must have a loaded Q-factor of 19. Consequently there is no need for the demodulator tuned circuit to be adjusted for minimum THD, instead the adjustment criterium is for a symmetrical stop pulse. Mute attenuator and AF output The control voltage for the mute attenuator at pin 14 is generated from the values of the level detector and the detuning detector outputs. The mute attenuator has a fast attack and a slow decay which is determined by the capacitor at pin 14. The AF signal is passed via the mute attenuator to the output at pin 4. A weighted control voltage, available from pin 6, is obtained from the mute attenuator control voltage via a buffer-amplifier which introduces an additional voltage shift and gain. Level detector The level detector generates a voltage output which is proportional to the field strength of the input signal. The unweighted level detector output is available when the mode switch is operating in the FM, mute-on condition. Tuning-stop outputs The open collector outputs STOP-0 and STOP-1 (from pins 13 and 12 respectively) are voltages derived from the detuning level and the field strength of the input signal. If only one tuning-stop output is required, pins 12 and 13 may be tied together.
April 1991
5
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
RATINGS Limiting values in accordance with the Absolute Maximum System (IEC 134) PARAMETER Supply voltage (pin 1) Reference voltage range (pin 5) Level adjustment range (pin 2) Mode switch voltage range (pin 7) Control input voltage range (pin 11) THD compensation/unweighted field strength voltage range (pin 3) Tuning-stop output voltage range STOP-0 (pin 13) STOP-1 (pin 12) Tuning-stop output current STOP-0 (pin 13) STOP-1 (pin 12) Storage temperature range Operating ambient temperature range Electrostatic handling pin 5 pin 6
* *
TDA1596
SYMBOL VP = V 1-15 V5-15 V2-15 V7-15 V11-15 V3-15 V13-15 V12-15 I13 I12 Tstg Tamb Ves Ves Ves -0.3 -0.3 -0.3 -0.3 -0.3 -0.3 -0.3 -0.3 - - -55 -40
MIN.
MAX. + 16 + 10 + 10 + 16 +6 + 16 + 16 + 16 2 2 + 150 + 85 + 2000 + 900 + 1600 V V V V V V V V mA mA C C V V V
UNIT
all pins except pins 5 and 6
-2000 -2000 -2000
Equivalent to discharging a 100 pF capacitor through a 1.5 k series resistor.
April 1991
6
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
TDA1596
CHARACTERISTICS f = 10.7 MHz; VP = V1-15 = 8.5 V; VI = V18(rms) = 1 mV; Tamb = 25 C; measured in the circuit of Fig.3; tuned circuit at pins 9, 10 aligned for symmetrical stop pulses; all voltages are referred to ground (pin 15); unless otherwise specified PARAMETER Supplies Supply voltage Supply current at I2 = I7 = 0 mA FM demodulator Input impedance DC output voltage (no-signal condition) at V9, 10(p-p) 100 V; V18(rms) 5 V Output impedance Mute attenuator control voltage Control voltage (pin 14) at V18(rms) 5 V at V18(rms) = 1 mV Output impedance (pin 14) Level shift input (pin 2) internal bias voltage at I2 = 0 mA input impedance Internal muting (Fig.4) Internal attenuation of signals 22.5 kHz detuning 80 kHz A = 20log[V4(FM mute-off)/V4(FM)] at V14 1 V5 at V14 = 0.77 V5 at V14 = 0.55 V5 Attack and decay (pin 14) Pin 11 connected to ground * charge current discharge current Pin 11 connected to Vref charge current discharge current + I14 -I14 - - 100 120 - - A A + I14 -I14 - - 8 120 - - A A A A A - 1.5 - 0 3.0 20 - 4.5 - dB dB dB V2 R2-15 - 15 1.4 - - - V k V14 V14 R14-15 - - - 2.0 3.45 - - - 2.0 V V M V4 R4-15 2.75 - 3.10 400 3.45 - V R9-10 C9-10 25 - 40 6 55 - k pF VP = V1 I1 7.5 - 8.5 20 12.0 26 V mA SYMBOL MIN. TYP. MAX. UNIT
April 1991
7
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
PARAMETER Level detector Dependence of output voltage on temperature Output impedance Dependence of output voltage (pin 6) on input voltage (pin 18) (Fig.5): V18(rms) 5 V; I2 = I7 = 0 mA V18(rms) = 1 mV; I2 = I7 = 0 mA Slope of output voltage (pin 6) for input voltage range V18(rms) 50 V to V18(rms) 50 mV Dependence of output voltage (pin 6) on detuning (Fig.6) at input voltage V18(rms) = 10 mV: detuning 45 kHz detuning = for V6 = 1.8 V detuning = 200 kHz Slope of output voltage with detuning = 125 20 kHz at V18(rms) = 10 mV Level shift control (pin 2) (Fig.7) adjustment range adjustment gain output voltage at V2 = V5; V18(rms) 5 V Low-pass filter at pin 8 Output voltage at I7 = 0 mA; V18(rms) 5 V Internal resistance V8 R8(int) - 12 2.2 25 - 50 V6 - - 0.3 V6 -(V6/V2) 1.6 - 2.0 1.7 - - |V6/f| - 35 - V6 f V6 - 90 0.5 - - 0.7 0.2 160 0.9 V 6 ---------------------------20 log V 18 1.4 1.7 2.0 V6 V6 0.1 3.0 0.7 3.6 1.3 4.2 V 6 -------------V 6 T R6 - - 3.3 - SYMBOL MIN. TYP. MAX.
TDA1596
UNIT
mV/VK
-
500
V V
V/20 dB
V kHz V
mV/kHz V V V
V k
April 1991
8
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
PARAMETER Tuning-stop detector (Figs 8 and 9) Stop-0: detuning at V18(rms) = 10 mV for V13 3.5 V for V13 0.3 V Stop-1: detuning at V18(rms) = 10 mV for V12 3.5 V for V12 0.3 V Dependence of STOP-0, STOP-1 on input voltage (pin 18) input voltage (RMS value) for V12 = V13 3.5 V input voltage (RMS value) for V12 = V13 0.3 V Output voltage when I12 = I13 = 1 mA Mode switch and pin 3 (Fig.10) V12, 13 - - 0.3 V18(rms) - - 50 V18(rms) 250 - - -f -f - 18 - - 10 - + f + f - 18 - - 10 - SYMBOL MIN. TYP. MAX.
TDA1596
UNIT
kHz kHz kHz kHz
V V V
FM-off position
Control voltage for 60 dB muting depth V7 - - 1.4 V
FM, mute-on position (pin 3 = output)
Internal bias voltage at R7-15 10 M Input current Output voltage with R3-15 = 10 k; C3-15 1 nF** Output impedance for V18 = 5 V; I3 = 500 A R3-15 V7 I7 R3-15 V5 V5/I5 TC - 0.9 V5 - 1 - - - - 100 - 15 - V A M V3 - 2 - V V7 |I7| - - 2.8 - - 2.5 V A
FM, mute-off position (pin 3 = input)
Control voltage Input current at V7 = V5 Input resistance Reference voltage source Output voltage at I5 = -1 mA Output impedance at I5 = -1 mA Temperature coefficient 3.3 - - 3.7 40 3.3 4.1 80 - V mV/K
* Connecting pin 11 to ground is only allowed for measuring the current at pin 14. It is not for use in application. ** Without input voltage.
April 1991
9
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
TDA1596
OPERATING CHARACTERISTICS f = 10.7 MHz; V18(rms) = 1 mV; deviation (f) = 22.5 kHz; modulation frequency (fm) = 400 Hz; de-emphasis (pin 4) = 50 s; test circuit as per Fig.3; tuned circuit (QL = 19) aligned for symmetrical stop pulses; Tamb = +25 C; unless otherwise specified PARAMETER AF output voltage (RMS value) at V18(rms) = 10 mV Start of limiting (FM, mute-off); (RMS value) (Fig.11) Dependence of signal-to-noise ratio (in noise frequency band 250 Hz to 15 kHz, unweighted) on input voltage for S/N = 26 dB for S/N = 46 dB at V18(rms) = 10 mV; f = 75 kHz THD (FM, mute-on) at V18(rms) = 10 mV; f = 75 kHz; fm = 1 kHz; without detuning; without de-emphasis; I7 = 0 mA Dynamic mute attenuation (Fig.12) V 4 ( FMmute - off ) D = 20 log ----------------------------------------------------V 4 ( FM, mute - on ) with fm = 100 kHz; f = 75 kHz Slope of attenuation curve THD (FM, mute-on) at V18(rms) = 10 mV; f = 75 kHz; fm = 1 kHz; detuning 25 kHz without de-emphasis; I7 = 0 mA (Fig.13) THD (FM, mute-off and compensated via pin 3) at V18(rms) = 10 mV; f = 75 kHz; fm = 1 kHz; V7 = V5 Voltage range at pin 3 for THD compensation AM suppression (FM, mute-off) with amplitude modulation at 30%; input voltage range V18 = 300 V to 100 mV (Fig.14) Power supply ripple rejection = 20log [V1/V4] Mute attenuation (FM-off) = 20log [V4(FM-on/V4(FM-off)] April 1991 10 60 - - dB 33 36 - dB - 65 - dB V3 0 - V5 V THD - 0.07 0.25 % THD - - 0.6 % D Df - - 16 0.8 - - dB dB/kHz THD - 0.1 0.3 % V18(rms) V18(rms) S/N - - - 15 60 82 - - - V V dB V18(rms) 14 22 35 V V4(rms) 180 200 220 mV SYMBOL MIN. TYP. MAX. UNIT
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
TDA1596
April 1991
11
Fig.3 Test circuit.
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
TDA1596
Fig.4
Typical curve of internal attenuation showing the relationship between the mute attenuator control voltage (pin 14) and mute attenuation, I2 = I7 = 0 mA.
Fig.5
Weighted field strength output voltage (pin 6) as a function of input voltage (pin 18); R6-15 10 k; I2 = I7 = 0 mA.
April 1991
12
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
TDA1596
Fig.6
Weighted field strength output voltage (pin 6) as a function of detuning; R6-15 10 k; I2 = I7 = 0 mA; V18 = 10 mV.
Fig.7
Adjustment range of weighted field strength output voltage (pin 6) with level shift control (pin 2); R6-15 10 k; I7 = 0 mA.
April 1991
13
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
TDA1596
(a) STOP-0.
(b) STOP-1
Fig.8 STOP-0 and STOP-1 output voltages as a function of detuning, measured at V18 = 10 mV.
April 1991
14
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
TDA1596
Fig.9 STOP-0 or STOP-1 output voltages as a function of input voltage at pin 18.
Fig.10 Switch levels at pin 7.
April 1991
15
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
TDA1596
(a) mode switch at FM, mute-on
(b) mode switch at FM, mute-off
Fig.11 Audio signal (f = 22.5 kHz; fm = 1 kHz) and noise as functions of input voltage at pin 18; measured with 50 s de-emphasis.
April 1991
16
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
TDA1596
Fig.12 Dynamic mute attenuation as a function of frequency deviation for modulation frequencies of 40, 60, 80 and 100 kHz.
Fig.13 THD as a function of detuning; mode switch at FM, mute-on position; f = 75 kHz; fm = 1 kHz; V18(rms) = 10 mV.
April 1991
17
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
TDA1596
(a) mode switch at FM, mute-on.
(b) mode switch at FM, mute-off
Fig.14 Typical curves showing AM suppression for an input signal having frequency modulation at f = 22.5 kHz and fm = 1 kHz, and amplitude modulation of 30% at a frequency of 400 Hz; de-emphasis time = 50 s and bandwidth = 250 Hz to 15 kHz.
April 1991
18
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
PACKAGE OUTLINE DIP18: plastic dual in-line package; 18 leads (300 mil)
TDA1596
SOT102-1
D seating plane
ME
A2
A
L
A1
c Z e b1 b 18 10 b2 MH wM (e 1)
pin 1 index E
1
9
0
5 scale
10 mm
DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT mm inches A max. 4.7 0.19 A1 min. 0.51 0.020 A2 max. 3.7 0.15 b 1.40 1.14 0.055 0.044 b1 0.53 0.38 0.021 0.015 b2 1.40 1.14 0.055 0.044 c 0.32 0.23 0.013 0.009 D (1) 21.8 21.4 0.86 0.84 E (1) 6.48 6.20 0.26 0.24 e 2.54 0.10 e1 7.62 0.30 L 3.9 3.4 0.15 0.13 ME 8.25 7.80 0.32 0.31 MH 9.5 8.3 0.37 0.33 w 0.254 0.01 Z (1) max. 0.85 0.033
Note 1. Plastic or metal protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION SOT102-1 REFERENCES IEC JEDEC EIAJ EUROPEAN PROJECTION
ISSUE DATE 93-10-14 95-01-23
April 1991
19
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
SOLDERING Introduction There is no soldering method that is ideal for all IC packages. Wave soldering is often preferred when through-hole and surface mounted components are mixed on one printed-circuit board. However, wave soldering is not always suitable for surface mounted ICs, or for printed-circuits with high population densities. In these situations reflow soldering is often used. This text gives a very brief insight to a complex technology. A more in-depth account of soldering ICs can be found in our "IC Package Databook" (order code 9398 652 90011). Soldering by dipping or by wave The maximum permissible temperature of the solder is 260 C; solder at this temperature must not be in contact with the joint for more than 5 seconds. The total contact time of successive solder waves must not exceed 5 seconds. DEFINITIONS Data sheet status Objective specification Preliminary specification Product specification Limiting values
TDA1596
The device may be mounted up to the seating plane, but the temperature of the plastic body must not exceed the specified maximum storage temperature (Tstg max). If the printed-circuit board has been pre-heated, forced cooling may be necessary immediately after soldering to keep the temperature within the permissible limit. Repairing soldered joints Apply a low voltage soldering iron (less than 24 V) to the lead(s) of the package, below the seating plane or not more than 2 mm above it. If the temperature of the soldering iron bit is less than 300 C it may remain in contact for up to 10 seconds. If the bit temperature is between 300 and 400 C, contact may be up to 5 seconds.
This data sheet contains target or goal specifications for product development. This data sheet contains preliminary data; supplementary data may be published later. This data sheet contains final product specifications.
Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability. Application information Where application information is given, it is advisory and does not form part of the specification. LIFE SUPPORT APPLICATIONS These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale.
April 1991
20

▲Up To Search▲

Price & Availability of TDA1596

	To Download TDA1596 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .