TDA7541
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 upconversion
– 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
