DESCRIPTION

The car radio diagnostic processor is an interface chip in BCD Technology intended for car radio applications. It is able to detect potential faults coming from any misconnection in the car radio or in the harness when installing the set.

■ WIDE OPERATING VOLTAGE RANGE

■ ST-BY FUNCTION (C-MOS)

■ LOW QUIESCENT ST-BY CURRENT CONSUMPTION

■ I2C BUS INTERFACE WITH 2 EXTERNALLY SELECTABLE ADDRESSES

■ UP TO 5 BTL EQUIVALENT INPUTS FOR FAULT DETECTION IN THE AUDIO CHANNELS

- short to GND

- short to Vs

- short across the load (at turn-on)

- open load (at turn-on)

■ 2 AUX INPUTS FOR FAULT DETECTION IN THE ANTENNA AND BOOSTERS SUPPLY LINE- short to GND- open load

■ WARNING PIN FUNCTION (interrupt facility) ACTIVATED IN THE FOLLOWING CONDITION:

- audio channel shorted to VS

- audio channel shorted to GND

- aux input shorted to GND

■ NOISE FREE DIAGNOSTICS OPERATION

■ PROTECTORS

■ LOAD DUMP VOLTAGE

■ OPEN GND

■ REVERSED BATTERY

■ ESD

TDA7476屬于集成電路（IC） > 音頻專用。意法半導(dǎo)體（ST）集團制造生產(chǎn)的TDA7476音頻專用音頻專用的半導(dǎo)體器件專為音頻信號的濾波、驅(qū)動、放大、轉(zhuǎn)換和接口而設(shè)計。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、消費類音頻、樂器、專業(yè)音頻、通信系統(tǒng)、電信系統(tǒng)、數(shù)字音頻、驅(qū)動器、前置放大器、信號混合、信號處理、語音觸發(fā)器解決方案和 10 Base-T。