TDA7541 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 BICMOS technology allows the implementation of several tuning functions and a minimum of external ponents.
TDA7541 Key Features
- FM part
- generation by RF and IF detection I/Q mixer for 1st IF 10.7MHz with image rejection Mixer for 2nd IF 450kHz Internal 450
- 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 pensation