TDA7342

Features:

*INPUT MUL TIPLEXER
- TWO STEREO AND ONE MONO INPUTS
- ONE QUASI DIFFERENTI ALINPUT
- SELECTABLE INPUT GAIN FOR OPTIMAL
ADAPTATION TO DIFFERENT SOURCES
*FULLY PROGRAMMABLE LOUDNESS
FUNCTION
*VOLUME CONTROL IN 0.3dB STEPS IN-CLUDING GAINUP TO 20dB
*ZERO CROSSING MUTE, SOFT MUTE AND DIRECTMUTE
*BASS AND TREBLE CONTROL
*FOUR SPEAKER ATTENUATORS
- FOUR INDEPENDENT SPEAKERS
CONTROL IN 1.25dB STEPS FOR
BALANCEAND FADERF ACILITIES
- INDEPENDENT MUTE FUNCTION
*ALL FUNCTIONS PROGRAMMABLE VIA SERIAL I ²C BUS


Pinout




Specifications

Symbol	Parameter	Value	Unit
Vs	Operating Supply Voltage	10.5	V
Tamb	Operating Temperature Range	-40 to 85	°C
Tstg	Storage Temperature Range	-55to +150	°C

Description

The audioprocessor TDA7342 is an upgrade of theTDA731Xaudioprocessorfamily.
Due to a highly linear signal processing, using
CMOS-switching techniques instead of standard bipolar multipliers, very low distortion and very
low noise are obtained.Several new featureslike softmute, and zero-crossing mute are implemented.
The soft Mute function can be activated in two
ways of the TDA7342:
1 Viaserialbus(Mute byte,bit D0)
2 Directly on pin 21 through an I/O line of the microcontroller
Very low DC stepping is obtained by use of a BICMOS technology.