TDA7541B

www.DataSheet4U.com TDA7541B AM/FM car radio tuner IC with stereo decoder and intelligent selectivity system Features ■ FM part – AGC generation by RF and IF detection – I/Q mixer for 1st IF 10.7 MHz with image rejection – Mixer for 2nd IF 450 kHz – Internal 450 kHz band pass filter with bandwidth control by ISS – Fully integrated FM demodulator with noise cancellation AM part – Wide and narrow AGC generation – Mixer for 1st IF 10.7 MHz, AM up conversion – Mixer for 2nd IF 450 kHz – 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 Device summary Order code TDA7541B TDA7541BTR TDA7541BW TDA7541BWTR Package LQFP64 ■ ■ – 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 – Independent weather band input – All functions I2C bus controlled Description The TDA7541B 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, qualit...