TDA7540N Overview
TDA7540N AM/FM car radio tuner IC with stereo decoder and intelligent selectivity system (ISS).
TDA7540N Key Features
- RF AGC generation by RF and IF detection
- I/Q mixer for 1st FM IF 10.7MHz with image
- Mixer for 2nd IF 450kHz
- Internal 450KHz bandpass filter with bandwidth
- Fully integrated FM-demodulator with spike
- Wide and narrow AGC generation
- Mixer for 1st IF 10.7MHz, AM upconversion
- Mixer for 2nd IF 450kHz, AM downconversion
- Integrated AM-demodulator
- AM IF- and audio noise blanking