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TDA7437N Datasheet(PDF) 1 Page - STMicroelectronics |
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TDA7437N Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 34 page  December 2006 Rev 2 1/34 1 TDA7437N Digitally controlled audio processor Features ■ Input multiplexer – Four stereo, one mono input, and one differential input – Selectable input gain for optimal adaptation to different sources ■ Fully programmable loudness function ■ Volume control in 1dB steps including gain up to 16dB ■ Zero crossing mute, soft mute and direct mute ■ Bass and treble control ■ Four speaker attenuators- four independent speakers control in 1dB steps for balance and fader facilities ■ Pause detector programmable threshold ■ All functions programmable via serial I2C bus Description The audioprocessor TDA7437N 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 either via the serial bus (Mute byte, bit D0), or directly on pin 28 through an I/O line of the microcontroller Very low DC stepping is obtained by use of a BICMOS technology. LQFP44 Order codes Part numbers Package Packing E-TDA7437N LQFP44 (10x 10x 1.4mm) Tray E-TDA7437NTR LQFP44 (10x 10x 1.4mm) Tape and reel www.st.com |
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