CH7202 Overview
The CH7202 video encoder integrates a dual PLL clock generator and a digital NTSC/PAL video encoder. By generating all essential clock signals for MPEG playback, and converting digital video inputs to either NTSC or PAL video signals, the CH7202 is an essential ponent of any low-cost solution for video-CD playback machines. The CH7202 dual PLL clock synthesizer generates all clocks and timing signals from a 14.31818...
CH7202 Key Features
- Outputs NTSC, PAL (B,D,G,H,I) and PAL-M (NTSCJ or PAL-60 available as options)
- 8-bit YCrCb (4:2:2) input format
- Master or slave mode operation
- Triple 9-bit DAC for posite and S-video output
- 27 MHz DAC operating frequency eliminates the need for 1/sinc(x) correction filter
- Low-jitter phase-locked loop circuitry operates using a low-cost 14.31818 MHz crystal
- 40.5 or 33.9 MHz video decoder clock output
- 16.934 or 11.289 MHz audio decoder clock output
- 13.5 MHz and 27 MHz video pixel clock outputs
- Internal 4.6 MHz (m ax) luminance and 1.3 MHz chrom inance filters