TDA4474 - Multistandard Video-IF and Quasi Parallel Sound Processing
The TDA4474 is an integrated bipolar circuit for full multistandard video/sound IF (VIF/SIF) signal processing in TV/VCR and Multimedia applications.
The circuit processes all TV video IF signals with negative modulation (e.g.
B/G standard), positive modulation (e.g.
L standard) and the AM, FM/NICAM
TDA4474 Features
* D 5V supply voltage; low power consumption D Active carrier generation by FPLL principle D Alignment
* free quasi parallel sound (QPS) mixer for FM/NICAM sound IF signals D Intercarrier output signal is gain controlled (frequency
* phase
* locked
* loop) synchronous demodul
