SAA4990H - Progressive scan-Zoom and Noise reduction IC
The SAA5191 is a bipolar integrated circuit that extracts teletext data from the video signal (CVBS), regenerates the teletext clock (TTC) and synchronizes the text display to the television signals (VCS).
This device operates in conjunction with the Digital Video Teletext (back-end) Decoder (DVTB -
SAA4990H Features
* Adaptive data slicer
* Crystal-controlled data clock regeneration with a bit rate of 6.9375 MHz
* Adaptive sync separator, horizontal phase detector and 13.5 MHz VCO to provide display phase locked loop (PLL)
* TV synchronization at teletext mode GENERAL DESCRIPTIO
