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TDA7437 Datasheet Digitally Controlled Audio Processor

Manufacturer: STMicroelectronics

Overview: ® TDA7437 DIGITALLY CONTROLLED AUDIO PROCESSOR INPUT MULTIPLEXER - FOUR STEREO, ONE MONO INPUT, AND ONE DIFFERENTIAL INPUT - SELECTABLE INPUT GAIN FOR OPTIMAL ADAPTATION TO DIFFERENT SOURCES FULLY PROGRAMMABLE LOUDNESS.

General Description

The audioprocessor TDA7437 is an upgrade of the TDA731X audioprocessor family.

PIN CONNECTION PQFP44 and TQFP44 ORDERING NUMBERS: TDA7437 (PQFP44) TDA7437T (TQFP44) 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

Key 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 28 through an I/O line of the microcontroller Very low DC stepping is obtained by use of a BICMOS technology. 44 43 42 41 40 39 38 37 36 35 34 TREB_R IN_R MUXOUT_R LOUD_R DIFFGND_R DIFF_R STEREO4_R STEREO1_R STEREO2_R STEREO3_R MONO 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 DIFFGND_L STEREO4_L STEREO1_L STEREO2_L STEREO.

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