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(R)
TDA7463A
LOW VOLTAGE TONE CONTROL DIGITALLY CONTROLLED AUDIO PROCESSOR
2 STEREO INPUT 1 STEREO OUTPUT TREBLE BOOST BASS CONTROL BASS AUTOMATIC LEVEL CONTROL VOLUME CONTROL IN 1dB STEPS MUTE STAND-BY FUNCTION SOFTWARE CONTROLLED ALL FUNCTION ARE PROGRAMMABLE VIA SERIAL BUS DESCRIPTION The TDA7463A is a volume tone (bass and treble) processor for quality audio applications in Low voltage supply portable systems. Bass ALC (Automatic Level Control) function can be adjusted by a dedicated pin. The control of all APPLICATION & TEST CIRCUIT
R5 5.6K C14 3.3nF 100nF C13
SO20 ORDERING NUMBER: TDA7463A
the functions is accomplished by serial bus. The AC signal setting is obtained by resistor networks and switches combined with operational amplifiers. Thanks to the used BIPOLAR/CMOS Technology, Low Distortion, Low Noise and DC stepping are obtained.
100nF C12
TREBLE-R 17 C1 0.47F IN2-R 18 INPUT SELECT -63dB CONTROL TREBLE
BASSI-R 16
BASSO-R 15
RB
50K C2 0.47F IN1-R 19
0/-10dB x1 BASS x5 14 OUT-R
50K I2C 1 10 HALF_WAVE RECTIFIER + I2C BUS DECODER + LATCHES 9 SDA SCL R3 1K R4 1K 2 3 4 VS DGND SCL SDA
VS BASS_ALC CONTROL C3 0.47F ALC R1 1M 20
VS
C4 0.47F IN1-L
2 TREBLE 50K -63dB CONTROL BASS 0/-10dB
x5 x1 7
OUT-L
C5 0.47F IN2-L
3
50K 4 5 TREBLE-L C6 3.3nF
RB 6 BASSI-L C7 100nF
VREF 11 BASSO-L
SUPPLY 12 GND CREF C9 22F
VS 1 C10 100nF
VS C11 100F
D99AU1049
C8 100nF R2 5.6K
January 2002
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TDA7463A
ABSOLUTE MAXIMUM RATINGS
Symbol VS Tamb Tstg Operating Supply Voltage Operating Ambient Temperature Storage Temperature Range Parameter Value 5 -10 to 85 -55 to 150 Unit V C C
PIN CONNECTION
VS IN1-L IN2-L TREBLE-L BASSI-L BASSO-L OUT-L N.C. SDA SCL
1 2 3 4 5 6 7 8 9 10
D99AU1050
20 19 18 17 16 15 14 13 12 11
ALC IN1-R IN2-R TREBLE-R BASSI-R BASSO-R OUT-R N.C. CREF GND
THERMAL DATA
Symbol Rth j-pin Parameter Thermal Resistance Junction-pins Value 85 Unit C/W
QUICK REFERENCE DATA
Symbol VS VCL THD S/N SC Supply Voltage Max. input signal handling Total Harmonic Distortion V = 0.1Vrms f = 1KHz Signal to Noise Ratio V out = 0.1Vrms (mode = OFF) Channel Separation f = 1KHz Volume Control (1dB step) -10dB damping 14dB Treble Control Bass Control Mute Attenuation -63 -10 0 0 0 100 80 80 0 0 14 8 14 Parameter Min. 1.8 0.2 0.1 Typ. 2.4 Max. 3 Unit V Vrms % dB dB dB dB dB dB dB dB
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ELECTRICAL CHARACTERISTICS (refer to the test circuit Tamb = 25C, VS =2.4V, RL= 10K, RG = 600, all controls flat, unless otherwise specified)
Symbol Parameter Test Condition Min. Typ. Max. Unit
SUPPLY
VS IS IST-BY SVR Supply Voltage Supply Current Stand-By Current Ripple Rejection 1.8 2.4 4 50 70 3 V mA A dB
INPUT STAGE
RIN VCL Input Resistance Clipping Level THD = 0.3% 35 0.2 50 65 K Vrms
VOLUME CONTROL
CRANGE AV MIN AVMAX ASTEP Amute A-10dB G14dB Control Range Min Attenuation Max. Attenuation Step Resolution Mute Attenuation -10dB damping 14dB gain -1 62 80 63 0 63 1 100 10 14 1 64 dB dB dB dB dB dB dB
BASS CONTROL (1)
Gb RB Control Range Internal Feedback Resistance Max. Boost/on 33.75 14 45 56.25 dB K
TREBLE CONTROL (1)
Gt Control Range Max. Boost on 8 dB
AUDIO OUTPUTS
VCLIP RL VDC Clipping Level Output Load Resistance DC Voltage Level d = 0.3% 0.2 10 0.8 VRMS K V V V 1 dB dB dB %
GENERAL
ENO Output Noise Outout Muted All gains = 0dB; BW = 20Hz to 20KHz flat All gains 0dB; VO = 0.1VRMS ; AV = 0; VI = 0.1VRMS ; 5 8 0 80 80
Et S/N SC d
Total Tracking Error Signal to Noise Ratio Channel Separation Left/Right Distortion
0.1
BUS INPUT
VIL VIH IIN VO Input Low Voltage Input High Voltage Input Current Output Voltage SDA Acknowledge 0.5 VIN = 0.4V IO = 1.6mA 1.9 -5 5 0.4 V V A V
NOTE1: 1) BASS and TREBLE response: The center frequency and the response quality can be chosen by the external circuitry.
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TDA7463A
DATA BYTES Address = (HEX) 10001000 FUNCTION SELECTION: The first byte (subaddress)
MSB D7 D6 X X X D5 X X X D4 B B B D3 0 0 0 D2 0 0 0 D1 0 0 1 LSB D0 0 1 0 BASS VOLUME SUBADDRESS STAND-BY & TREBLE & OTHERS
B = 1 incremental bus; active B = 0 no incremental bus; X = indifferent 0,1
STAND_BY & TREBLE & OTHERS
MSB D7 D6 D5 D4 D3 D2 D1 LSB D0 STAND-BY 1 1 1 0 1 0 1 0 1 0 1 0 1 0 0 0 0 0 0 0 ALL CIRCUITS STOP TREBLE STAND-BY (Treble block stops) BOOST OFF BOOST ON High Boost (+8dB) Low Boost (+4dB) MUTE Input Mute ON Input Mute OFF Output Mute ON Output Mute OFF BASS Release Current Circuit ON Release Current Circuit OFF INPUT Select INPUT 1 INPUT 2
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TDA7463A
BASS
MSB D7 D6 D5 D4 D3 D2 D1 1 0 0 0 LSB D0 1 BASS STAND-BY (Bass block stops) BASS (boost OFF) BASS (boost ON) High boost (Ex. + 14dB) Low boost (Ex. + 6dB) ALC mode OFF (ALC block stops) ALC mode ON Attack time resistor (12.5K) Release current (0.4A) Attack time resistor (25K) Release current (0.2A) Attack time resistor (50K) Release current (0.1A) Attack time resistor (100K) Release current (0.05A) Threshold1 (0.2Vrms) Threshold2 (0.14Vrms) Threshold3 (0.1Vrms) Threshold4 (0.07Vrms)
1 0 1 0 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1
VOLUME
MSB D7 D6 D5 D4 D3 D2 0 0 0 0 1 1 1 1 D1 0 0 1 1 0 0 1 1 LSB D0 0 1 0 1 0 1 0 1 VOLUME 1 dB STEPS 0 -1 -2 -3 -4 -5 -6 -7 8 dB STEPS 0 -8 -16 -24 -32 -40 -48 -56 OUTPUT GAIN 0dB +14dB OUTPUT ATTENUATION 0dB -10dB
0 0 0 0 1 1 1 1 1 0 1 0
0 0 1 1 0 0 1 1
0 1 0 1 0 1 0 1
VOLUME : 0 -63dB
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ALC IN general: VOLUME setting with ALC
Target Volume [dB] 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 : : -70 -71 -72 -73 Volume [dB] -14 -15 -16 -17 -18 -19 -20 -21 -22 -23 -24 -25 -26 -27 -14 -15 -16 -17 -18 -19 -20 -21 -22 -23 -14 -15 -16 -17 : : -60 -61 -62 -63 Output Gain 0/+14dB [dB] +14 Output Attenuation 0/-10dB [dB] 0
0
0
0
-10
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TDA7463A
PIN: IN-L, IN-R PIN: OUT-L, OUT-R
VS 20A
VS 20A 10
50K GND Vref
GND
D99AU1106
D99AU1107
PIN: TREBLE-L, TREBLE-R
PIN: SCL, SDA
VS 20A
25K GND
D99AU1108
GND
D99AU1109
PIN: BASSI-L, BASSI-R
PIN: BASSO-L, BASSO-R
VS 20A
VS 20A
GND
45K
45K GND
D99AU1110
BASSO-L,BASSO-R
BASSI-L,BASSI-R
D99AU1111
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TDA7463A
PIN: ALC PIN: CREF
VS 20A
VS 20A 1K
100K GND
D99AU1112
GND
D99AU1113
BASS ALC: Threshold curve
VO (Vrms)
VS=1.8V; f=100Hz; Volume=-14dB; Output gain=+14dB Intern. release circuit=ON
D99AU1115
BASS ALC: THD
THD V =1.8V; f=100Hz; S (%) Volume=-14dB; 10
Output gain=+14dB Intern. release circuit=ON Bass boost with ALC
D99AU1114
Bass boost without ALC Bass boost with ALC Threshold: 8dB 11dB
1
Threshold
B 14d 11d B 8dB
0.1
17dB
14dB
0.1
17dB
Bass= +14dB boost
Bass boost without ALC
flat
0.01
flat
0.01 0.01
0.1
VI(Vrms)
0.001 0.01
0.1
VI(Vrms)
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TDA7463A
PC board and Components Layout of the Application & Test Circuit.
70mm
Component layer
65mm
Solder layer
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TDA7463A
mm DIM. MIN. A A1 B C D E e H h L K 10 0.25 0.4 2.35 0.1 0.33 0.23 12.6 7.4 1.27 10.65 0.75 1.27 0.394 0.010 0.016 TYP. MAX. 2.65 0.3 0.51 0.32 13 7.6 MIN. 0.093 0.004 0.013 0.009 0.496 0.291 0.050 0.419 0.030 0.050 TYP. MAX. 0.104 0.012 0.020 0.013 0.512 0.299 inch
OUTLINE AND MECHANICAL DATA
SO20
0 (min.)8 (max.)
L
h x 45
A B e K H D A1 C
20
11 E
1
0 1
SO20MEC
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TDA7463A
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics (c) 2002 STMicroelectronics - Printed in Italy - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco Singapore - Spain - Sweden - Switzerland - United Kingdom - United States. http://www.st.com
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