TEA6822T Overview
TEA6822T Adjustment-free PLL VCO Pilot depending mono/stereo switching Analog control of mono/stereo blend Adjacent channel noise suppression (114 kHz) Pilot cancelled Analog control of de-emphasis Integrated low-pass filters for 190 kHz adjacent channel interferences and signal delay for interference absorption circuit. GENERAL DESCRIPTION The TEA6820T together with the TEA6810T and the TEA6822T together with the...
TEA6822T Key Features
- FM mixer for conversion from FM-IF1 = 72.2 MHz to FM-IF2 = 10.7 MHz
- AM mixer for conversion from AM-IF1 = 10.7 MHz to AM-IF2 = 450 kHz
- FM-IF gain stage
- Crystal oscillator providing mixer frequencies and references for IF-count and stereo decoder
- FM quadrature demodulator with automatic centre frequency adjustment and THD pensation
- Level, multi-path and noise detectors
- Soft mute
- Stereo noise cancelling and variable de-emphasis
- PLL stereo decoder
- Noise blanker