TDA7541B Overview
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, 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.
TDA7541B Key Features
- 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
