Part # TDA7540N datasheet

Part Manufacturer: ST Microelectronics

ST Microelectronics

Part Description: AM FM car radio tuner IC with stereo decoder and intelligent selectivity system (ISS)

Part Details:

TDA7540N AM/FM car radio tuner IC with stereo decoder and intelligent selectivity system (ISS) Features FM-part RF AGC generation by RF and IF detection I/Q mixer for 1st FM IF 10.7MHz with image LQFP80 rejection Mixer for 2nd IF 450kHz Internal 450KHz bandpass filter with bandwidth Additional features control by ISS VCO for world tuning range Fully integrated FM-demodulator with spike High performance fast PLL for RDS-System cancellation IF counter for FM and AM with search stop AM-part signal Quality detector for level, deviation, adjacent Wide and narrow AGC generation channel and multipath Mixer for 1st IF 10.7MHz, AM upconversion ISS (intelligent selectivity system) for Mixer for 2nd IF 450kHz, AM downconversion cancellation of adjacent channel and noise Integrated AM-demodulator influences AM IF- and audio noise blanking Adjacent channel mute Fully electronic alignment Stereodecoder All functions I2C-Bus controlled PLL with adjustment free, fully integrated VCO Automatic pilot dependent mono/stereo Description switching The TDA7540N is a high performance tuner Programmable ROLL-OFF compensation circuit for AM/FM car radio. It contains mixer, IF High cut and stereo blend-characteristics amplifier, demodulator for AM and FM, programmable stereodecoder, quality detection, ISS filter and Dedicated RDS-mute PLL synthesizer with IF counter on a single chip. Use of BICMOS technology allows the Internal noise blanker with several threshold implementation of several tuning functions and a controls minimum of external components. Table 1. Device summary Order code

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TDA7540N.pdf Datasheet