TDA9814T Description
plastic small outline package; body width 7.5 mm GENERAL DESCRIPTION TDA9814T The TDA9814T is an integrated circuit for multistandard vision IF signal processing and sound AM and dual FM demodulation, with single reference QSS-IF in TV and VCR sets. 54% modulation L standard;.
TDA9814T Key Features
- 5 V supply voltage
- Gain controlled wide band VIF-amplifier (AC-coupled)
- True synchronous demodulation with active carrier regeneration (very linear demodulation, good intermodulation figures,
- Robustness for over-modulation better than 105% due to gated phase detector at L/L accent standard
- VCO frequency switchable between L and L accent (alignment external) picture carrier frequency
- Separate video amplifier for sound trap buffering with high video bandwidth
- VIF-AGC detector for gain control, operating as peak sync detector for B/G and peak white detector for L (optional exter
- Tuner AGC with adjustable takeover point (TOP)
- AFC detector without extra reference circuit
- AC-coupled limiter amplifier for sound intercarrier signal