Fairchild Semiconductor TMC2072
The TMC2072 Genlocking Video Digitizer samples and quantizes standard analog baseband composite NTSC or PAL video into its 8-bit digital equivalent. It extracts horizontal and vertical sync signals, from which an on-chip PLL generates a line-locked pixel clock for the on-chip 8-bit A/D converter and a double-speed register clock to transfer data to a subsequent video processing subsystem. The chip reports each line’s color burst phase and frequency during the next horizontal sync pulse.| Part No. | TMC2072 |
|---|---|
| Datasheet | TMC2072 Download |
| Manufacturer |  Fairchild Semiconductor |
| Description | Genlocking Video Digitizer |
| Buy | Stock & Price |
FEATURES
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● Fully integrated acquisition 3-channel video input multiplexer Two-stage (analog and digital) video clamp Automatic gain adjustment Sync detection and separation Pixel and subpixel adjustment of video-to-sync output timing Genlock to any NTSC or PAL format, including PAL-M and PAL-N Pixel clock generation 8-bit video A/D conversion Standard R-bus serial microprocessor interface User-selectable line-locked pixel rates include: – 12.27 MHz NTSC & PAL-M – 13.5 MHz NTSC & all PAL – 14.75 MHz PAL (non-M) TMC2072-1 only – 15.0 MHz PAL (non-M) TMC2072-1 only Direct interface to Fairchild Semiconductor video encoders and decoders Built-in circuitry for crystal oscillator No tuning or external voltage reference required Space-saving 100-lead MQFP package
DESCRIPTION
A second PLL generates a chroma subcarrier locked to the incoming chroma burst. The TMC2072 includes a three-channel video input multiplexer, analog clamp, variable gain amplifier, and digital back porch clamp.
