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ST Microelectronics - LOW VOLTAGE TONE CONTROL DIGITALLY CONTROLLED AUDIO PROCESSOR

Numéro de référence TDA7463AD
Description LOW VOLTAGE TONE CONTROL DIGITALLY CONTROLLED AUDIO PROCESSOR
Fabricant ST Microelectronics 
Logo ST Microelectronics 





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TDA7463AD fiche technique
TDA7463AD
LOW VOLTAGE TONE CONTROL
DIGITALLY CONTROLLED AUDIO PROCESSOR
1 FEATURES
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
2 DESCRIPTION
The TDA7463AD is a volume tone (bass and tre-
ble) processor for quality audio applications in Low
voltage supply portable systems.
Bass ALC (Automatic Level Control) function can
be adjusted by a dedicated pin.
Figure 1. Package
SSO20P
Table 1. Order Codes
Part Number
TDA7463AD
Package
SSO20P
The control of all the functions is accomplished by
serial bus.
The AC signal setting is obtained by resistor net-
works and switches combined with operational
amplifiers.
Thanks to the used BIPOLAR/CMOS Technology,
Low Distortion, Low Noise and DC stepping are
obtained.
Figure 2. Block Diagram
C1 0.47µF
IN2-R
C2 0.47µF
IN1-R
C14 3.3nF
R5
5.6K
100nF
100nF
TREBLE-R
C13 C12
BASSI-R
BASSO-R
17 16
15
18 RB
INPUT
-63dB
50K SELECT CONTROL
19 TREBLE
BASS
0/-10dB
50K
x1
x5
C3 0.47µF
ALC 20
R1
1M
BASS_ALC
CONTROL
HALF_WAVE
RECTIFIER
+
I2C BUS DECODER + LATCHES
14 OUT-R
VS VS
10 SCL
R3
1K
R4
1K
9 SDA
I2C
1
2
3
4
VS
DGND
SCL
SDA
C4 0.47µF
IN1-L
2
50K
C5 0.47µF
IN2-L
3
50K
D99AU1049
TREBLE
-63dB
CONTROL
BASS
0/-10dB
x5
x1
OUT-L
7
RB
VREF
SUPPLY
VS
1
4 5 6 11 12
TREBLE-L BASSI-L
BASSO-L GND
CREF
C6
3.3nF
C7
100nF
C8
100nF
R2
5.6K
C9
22µF
C10
100nF
VS
C11
100µF
June 2004
REV. 3
1/11

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