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TDA7342EQ2N Datasheet, PDF (1/21 Pages) STMicroelectronics – Digitally controlled audio processor | |||
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TDA7342EQ2N
Digitally controlled audio processor
Features
â Input multiplexer
â Two stereo and one mono inputs
â One quasi differential input
â Selectable input gain for optimal adaptation
to different sources
â Fully programmable loudness function
â Volume control in 0.3dB steps including gain
up to 20dB
â Zero crossing mute, soft mute and direct mute
â Bass and treble control
â Four speaker attenuators
â Four independent speakers control in
1.25dB steps for balance and fader facilities
â Independent mute function
â All functions programmable via serial I2C bus
Description
The audioprocessor TDA7342EQ2N is an
upgrade of the TDA731X audioprocessor family.
TQFP32
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 features like
softmute, and zero-crossing mute are
implemented. The soft Mute function can be
activated in two ways:
1. Via serial bus (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.
Order codes
Part number
TDA7342EQ2N
TDA7342EQ2NTR
Package
TQFP32
TQFP32
Packing
Tray
Tape and reel
August 2006
Rev 1
1/21
www.st.com
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