Datasheet > TDA7476_01

TDA7476_01

更新时间： 2024-11-16 04:28:39

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		/
页数	文件大小	规格书
19页	164K
描述
CAR RADIO DIAGNOSTIC PROCESSOR

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中文翻译

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数据手册

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TDA7476_01 数据手册

TDA7476

CAR RADIO DIAGNOSTIC PROCESSOR

■ WIDE OPERATING VOLTAGE RANGE

MULTIPOWER BCD TECHNOLOGY

■ ST-BY FUNCTION (C-MOS)

■ LOW QUIESCENT ST-BY CURRENT

CONSUMPTION

■ I C BUS INTERFACE WITH 2 EXTERNALLY

SELECTABLE ADDRESSES

■ UP TO 5 BTL EQUIVALENT INPUTS FOR

FAULT DETECTION IN THE AUDIO

CHANNELS

SO-24

- short to GND

ORDERING NUMBER: TDA7476

- 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:

DESCRIPTION

The car radio diagnostic processor is an interface

chip in BCD Technology intended for car radio appli-

cations. It is able to detect potential faults coming

from any misconnection in the car radio or in the har-

ness when installing the set.

- audio channel shorted to V

- audio channel shorted to GND

- aux input shorted to GND

■ NOISE FREE DIAGNOSTICS OPERATION

■ PROTECTORS

■ LOAD DUMP VOLTAGE

■ OPEN GND

The device is able to reveal any fault in the loud-

speaker lines and in the antenna and booster supply

lines, providing a proper output signal (I2C bus com-

patible) in order to disable the ICs under fault and/or

to alert the micro-controller by means of warning

messages.

■ REVERSED BATTERY

■ ESD

PIN CONNECTION (Top view)

GND

SDA

CH5-

CH5+

CH4+

CH4-

CH3-

CH3+

CH2+

CH2-

CH1-

CH1+

T-CAP

CSR

SCL

ADD

AUX1 OUT

AUX1 IN

AUX2 IN

AUX2 OUT

ST-BY

V_S

D97AU570A

April 2001

1/19

12 3 4 5 6 7...19

中文翻译

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