Datasheet Details
| Part number | SAA4990H |
|---|---|
| Manufacturer | Philips Semiconductors (now NXP Semiconductors) |
| File Size | 191.55 KB |
| Description | Progressive scan-Zoom and Noise reduction IC |
| Datasheet |
 SAA4990H Datasheet
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Description
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).
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.