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TDA7512 Datasheet

  • TDA7512

  • AM/FM CAR RADIO TUNER IC WITH INTELLIGENT SELECTIVITY SYSTEM...

  • 761.65KB

  • STMicroelectronics   STMicroelectronics

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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
nd
s
MIXER FOR 2
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
nd
s
MIXER FOR 2
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
s
s
s
s
ISS (INTELLIGENT SELECTIVITY SYSTEM)
FOR CANCELLATION OF ADJACENT
CHANNEL AND NOISE INFLUENCES
ADJACENT CHANNEL MUTE
FULLY ELECTRONIC ALIGNMENT
ALL FUNCTIONS I
2
C-BUS CONTROLLED
ISS FILTER STATUS INFORMATION I
2
C-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

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