TEA6823T Description
plastic very small outline package; 56 leads Stereo decoder TEA6823T; TEA6825T 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.
TEA6823T 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