TEA6820T
FEATURES
General
- 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 k Hz
- 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
- AM IF-amplifier and demodulator
- I2C-bus transceiver with interface to enable direct data transfer to radio front-end
- IF-count for AM and FM
- Reference frequency generation for PLL synthesizer. ORDERING INFORMATION PACKAGE TYPE NUMBER NAME TEA6820T TEA6822T VSO56 VSO56 DESCRIPTION
Stereo decoder
TEA6820T; TEA6822T
- Adjustment-free PLL VCO
- Pilot depending mono/stereo switching
- Analog control of mono/stereo blend
- Adjacent channel noise suppression (114 k Hz)
- Pilot cancelled
-...
