TDA7541

TDA7541 AM/FM car radio tuner IC with stereo decoder and intelligent selectivity system Features ■ FM part www.DataSheet4U.com – AGC – – – – ■ generation by RF and IF detection I/Q mixer for 1st IF 10.7MHz with image rejection Mixer for 2nd IF 450kHz Internal 450kHz band pass filter with bandwidth control by ISS Fully integrated FM demodulator with noise cancellation LQFP64 AM part – Wide and narrow AGC generation – Mixer for 1st IF 10.7MHz, AM upconversion – Mixer for 2nd IF 450kHz – Integrated AM-demodulator – AM IF noise blanking Stereo decoder – PLL with adjustment free, fully integrated VCO – Automatic pilot dependent MONO/STEREO switching – Programmable ROLL-OFF compensation – High cut and stereo blend-characteristics programmable – Dedicated RDS mute – Audio noise blanker Additional features – VCO for world tuning range ■ – High performance fast PLL for RDSSystem – IF counter for FM and AM with search stop signal – Quality detector for level, deviation, adjacent channel and multipath – ISS (Intelligent selectivity system) for cancellation of adjacent channel and noise influences – Adjacent channel mute – Fully electronic alignment – Independend weather band input – All functions I2C bus controlled Description The TDA7541 is a high performance tuner circuit with stereo decoder for AM/FM car radio. It contains a mixer, IF amplifier, demodulator for AM and FM, stereo decoder, quality detection, ISS filter and PLL synthesizer with IF counter on a single chip. Use of...