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ST Microelectronics - BASIC FUNCTION AUDIO PROCESSOR

Numéro de référence TDA7432D
Description BASIC FUNCTION AUDIO PROCESSOR
Fabricant ST Microelectronics 
Logo ST Microelectronics 





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TDA7432D fiche technique
TDA7432
BASIC FUNCTION AUDIO PROCESSOR
ONE STEREO AND ONE MONO INPUTS
MUTE FUNCTION (SOFTWARE AND HARD-
WARE) CONTROLLED
VOLUME CONTROL IN 1dB STEP
BASS AND TREBLE CONTROL IN 2dB STEP
FULLY PROGRAMMABLE LOUDNESS CON-
TROL
FOUR SPEAKER ATTENUATORS:
– Independentattenuation control
– Independentmute function
ALL FUNCTIONS PROGRAMMABLE VIA
I2CBUS
DESCRIPTION
The TDA7432 is a volume, tone (bass and treble)
balance (Left/Right) processor for quality audio
applications in car radio and Hi-Fi systems.
Control is accomplished by serial bus microproc-
essor interface.
The AC signal setting is obtained by resistor net-
BLOCK DIAGRAM
SO20
ORDERING NUMBER: TDA7432D
works and switches combined with operational
amplifiers.
Thanks to the advanced BIPOLAR/CMOS Tech-
nology, the external components have been re-
duced.
3
IN_L
4
MONO_IN/MUTE
68nF
4.7K
100nF
100nF
2.7nF
LOUD_L
6
BINL
10
BOUTL
9
TRL
11
SPKR
ATT
16
LEFT FRONT
MUX
VOL
+ LOUD
BASS
TREBLE
SPKR
ATT
14
LEFT REAR
S BUS DECODER + LATCHES
18
SCL
19
SDA
2
IN_R
MUX
VOL
+ LOUD
BASS
TREBLE
SPKR
ATT
15
RIGHT FRONT
17
VS
SUPPLY
20
GND
10µF
1
CREF
68nF
58
LOUD_R
BINR
7
BOUTR
100nF
100nF
4.7K
12
TRR
2.7nF
SPKR
ATT
13
RIGHT REAR
D95AU357A
August 1996
1/10

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