MN89201 Overview
For Information Equipment MN89201 VGA-NTSC Scan Converter Overview The MN89201 converts PC/AT VGA (640 × 480) display data into an NTSC video signal without requiring an external frame memory. It uses filtering to eliminate flicker and produce a high-quality television image. PC/AT and VGA are registered trademarks of International Business Machines Corporation.
MN89201 Key Features
- 8-bit inputs for VGA R, G, and B signals Horizontal frequency: 31.5 kHz Vertical frequency: 59.94 Hz
- Conversion of non-interlaced display to interlaced display
- Built-in phase-locked loop for synchronizing VGA and NTSC data clocks
- Conversion from RGB to YCrCb (4:2:2) format
- Data output in NTSC display format (YCrCb24 or YCrCb16-bit) Flicker prevention
- Choice of line filters with 3 taps for preventing flicker Processing with only line memory
- No need for external VRAM
- All processing pletes within built-in line memory Choice of readout clocks for NTSC output Choice 1: Choice of clock tha
MN89201 Applications
- RDCLK from an external VCO clock synchronized with VGA clock