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.

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

TDA7437N属于集成电路（IC） > 音频专用。意法半导体（ST）集团制造生产的TDA7437N音频专用音频专用的半导体器件专为音频信号的滤波、驱动、放大、转换和接口而设计。特征包括功能、应用、通道数、接口、电压和规格。应用包括音频系统、汽车音频、消费类音频、乐器、专业音频、通信系统、电信系统、数字音频、驱动器、前置放大器、信号混合、信号处理、语音触发器解决方案和 10 Base-T。