TDA7512

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 RDSSYSTEM 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 I2C-BUS CONTROLLED 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, demodulator for AM and FM, quality detection, ISS filter and PLL synthesizer with IF counter on a single chip. Use of BICMOS technology allows the implementation of several tuning functions and a minimum of external components. September 2003 This is...