TDA7437N集成電路（IC）的音頻專用規(guī)格書(shū)PDF中文資料

TDA7437N屬于集成電路（IC）的音頻專用。由意法半導(dǎo)體集團(tuán)制造生產(chǎn)的TDA7437N音頻專用音頻專用的半導(dǎo)體器件專為音頻信號(hào)的濾波、驅(qū)動(dòng)、放大、轉(zhuǎn)換和接口而設(shè)計(jì)。特征包括功能、應(yīng)用、通道數(shù)、接口、電壓和規(guī)格。應(yīng)用包括音頻系統(tǒng)、汽車音頻、消費(fèi)類音頻、樂(lè)器、專業(yè)音頻、通信系統(tǒng)、電信系統(tǒng)、數(shù)字音頻、驅(qū)動(dòng)器、前置放大器、信號(hào)混合、信號(hào)處理、語(yǔ)音觸發(fā)器解決方案和 10 Base-T。

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