Functional
Description
The AL251 Video Scan Doubler
(De-Interlacer) is a video conversion chip for LCD VGA
display or video editing applications. It converts
interlaced NTSC or PAL, ITU-R BT 601 (CCIR601) or Square
pixel, YUV422 or RGB 565 digital data into
non-interlaced analog RGB signals for direct connection
to a computer monitor or progressive scan TV, or digital
RGB565/ YUV422 output for LCD monitors, projectors, or
other applications. |
Applications
- LCD Monitor w/TV Input
- LCD
Projector
- Video Editing Equipment
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Features
- Convert interlaced digital YUV/RGB (NTSC/PAL) into
non-interlaced YUV/RGB format for LCD monitors or video
processing
- High integrated design with built-in DAC, SRAM, OSD and LUT
- Built-in
on-screen-display with programmable bitmap
- Advanced digital line interpolation with no tearing or
jagged edge artifacts
- Reduced interlace
flicker
- Auto NTSC/ PAL detect
- Digital
video input of square pixel, ITU-R BT 601 (CCIR 601), or
user-defined format
- Analog/ digital
non-interlaced RGB (VGA) output (Scan Doubled or
De-interlaced) or digital YUV output
- IIC
programming interface
- Internal RGB video lookup
table (LUT) to provide gamma correction
- Overlay
support for title making and complex on-screen display
- Self-initialization without software
(Plug & Play)
- 3.3 or 5 volt
support
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