E-TDA7342N

Audio Processor 32Pin TQFP

The audioprocessor TDA7342 is an upgrade of the TDA731X audioprocessor family.

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:Via serial bus Mute byte, bit D0Directly on pin 21 through an I/O line of the microcontroller

Very low DC stepping is obtained by use of a BICMOS technology.

**Key Features**

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All functions programmable via serial I2 C bus

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Four speaker attenuatorsFour independent speakers control in 1.25dB steps for balance and fader facilitiesIndependent mute function

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Input multiplexerTwo stereo and one mono inputsOne quasi differential inputSelectable input gain for optimal adaptation to different sources

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Volume control in 0.3dB steps including gain up to 20dB

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Fully programmable loudness function

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Bass and treble control

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Zero crossing mute, soft mute and direct mute