TDA7512 查看數據表（PDF） - STMicroelectronics

零件编号

产品描述 (功能)

比赛名单

TDA7512

AM/FM CAR RADIO TUNER IC WITH INTELLIGENT SELECTIVITY SYSTEM (ISS)

STMicroelectronics 

TDA7512

AM/FM CAR RADIO TUNER IC WITH INTELLIGENT

SELECTIVITY SYSTEM (ISS)

PRELIMINARY DATA

FM-PART

s RF AGC GENERATION BY RF AND IF

DETECTION

s I/Q MIXER FOR 1ST FM IF 10.7MHz WITH

IMAGE REJECTION

s 2 PROGRAMMABLE IF-GAIN STAGES

s MIXER FOR 2nd IF 450KHz

s INTERNAL 450KHz BANDPASS FILTER WITH

THREE BANDWIDTHS CONTROLLED BY ISS

s FULLY INTEGRATED FM-DEMODULATOR

WITH NOISE CANCELLATION

TQFP64

ORDERING NUMBER: TDA7512

AM-PART

s WIDE AND NARROW AGC GENERATION

s PREAMPLIFIER AND MIXER FOR 1ST IF

10.7MHz, AM UPCONVERSION

s MIXER FOR 2nd IF 450KHz

s INTEGRATED AM-DEMODULATOR

s OUTPUT FOR AM-STEREO-DECODER

ADDITIONAL FEATURES

s VCO FOR WORLD TUNING RANGE

s HIGH PERFORMANCE FAST PLL FOR RDS-

SYSTEM

s IF COUNTER FOR FM AND AM WITH

SEARCH STOP SIGNAL

s QUALITY DETECTOR FOR LEVEL,

DEVIATION, ADJACENT CHANNEL AND

MULTIPATH

s QUALITY DETECTION INFORMATIONS AS

ANALOG SIGNALS EXTERNAL AVAILABLE

s ISS (INTELLIGENT SELECTIVITY SYSTEM)

FOR CANCELLATION OF ADJACENT

CHANNEL AND NOISE INFLUENCES

s ADJACENT CHANNEL MUTE

s FULLY ELECTRONIC ALIGNMENT

s ALL FUNCTIONS I2C-BUS CONTROLLED

s ISS FILTER STATUS INFORMATION I2C-BUS

READABLE

DESCRIPTION

The TDA7512 is a high performance tuner circuit for

AM/FM car radio. It contains mixer, IF amplifier, de-

modulator for AM and FM, quality detection, ISS filter

and PLL synthesizer with IF counter on a single chip.

Use of BICMOS technology allows the implementa-

tion of several tuning functions and a minimum of ex-

ternal components.

September 2003

This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

1/42

Share Link: