Functional
Description
The AL128 PC to TV scan
converter chip accepts graphic data up to 1024x768
resolution from PC and Macintosh graphics controllers
and converts it into high quality NTSC or PAL TV
signals. This new chip is pin-to-pin compatible with the
AverLogic AL100 but provides analog RGB output for SCART
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Applications
- PC ready multimedia TV
- TV output for
laptop, network, entertainment PC
- Net
browser/set-top box
- Internet TV
- VGA add-on card
with TV output
- VGA to TV converter box
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Features
- Convert non-interlaced VGA or Macintosh video into
interlaced TV format (NTSC/PAL)
- Analog RGB
output for SCART interface
- Highly integrated
design with built-in NTSC/PAL encoder, ADC, DAC and SRAM
- High clarity 5-line anti-flicker filter
- 8 levels of sharpness control
- Supports
up to full 1024x768 VGA resolution
- Automatically supports scan rate from 50Hz up
to 100Hz
- Linear vertical and horizontal
over/underscan control
- Zoom and freeze controls
- Four-touch-button interface with on-screen-menu
on TV
- Horizontal and vertical position/panning
control
- Optional digital 24-bit RGB/VAFC
interface
- Power down feature controlled by
software or hardware
- Full programmability via
I2C interface
- Brightness control
- Built-in color
bar
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