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TDA7512

September 2003

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

FM-PART

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RF AGC GENERATION BY RF AND IF

DETECTION

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

IMAGE REJECTION

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2 PROGRAMMABLE IF-GAIN STAGES

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INTERNAL 450KHz BANDPASS FILTER WITH

THREE BANDWIDTHS CONTROLLED BY ISS

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FULLY INTEGRATED FM-DEMODULATOR

WITH NOISE CANCELLATION

AM-PART

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WIDE AND NARROW AGC GENERATION

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PREAMPLIFIER AND MIXER FOR 1ST IF

10.7MHz, AM UPCONVERSION

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INTEGRATED AM-DEMODULATOR

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OUTPUT FOR AM-STEREO-DECODER

ADDITIONAL FEATURES

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VCO FOR WORLD TUNING RANGE

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HIGH PERFORMANCE FAST PLL FOR RDS-

SYSTEM

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IF COUNTER FOR FM AND AM WITH

SEARCH STOP SIGNAL

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QUALITY DETECTOR FOR LEVEL,

DEVIATION, ADJACENT CHANNEL AND

MULTIPATH

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QUALITY DETECTION INFORMATIONS AS

ANALOG SIGNALS EXTERNAL AVAILABLE

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ISS (INTELLIGENT SELECTIVITY SYSTEM)

FOR CANCELLATION OF ADJACENT

CHANNEL AND NOISE INFLUENCES

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ADJACENT CHANNEL MUTE

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FULLY ELECTRONIC ALIGNMENT

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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.

TQFP64

ORDERING NUMBER: TDA7512

PRELIMINARY DATA

AM/FM CAR RADIO TUNER IC WITH INTELLIGENT

SELECTIVITY SYSTEM (ISS)