D). Main-Chip Gmzan1 Specifications - Tatung VL5A9DA Service Manual

The gmZAN1device utilizes Genesis' patented third-generation Advanced Image Magnification technology as well as
a proven integrated ADC/PLL to provide excellent image quality within a cost effective SVGA/XGA LCD monitor
solution.
As a pin-compatible replacement for the gmB120, the gmZAN1 incorporates all of the gmB120 features plus many
enhanced features; including 10-bit gamma correction, Adaptive Contrast Enhancement (ACE) filtering, Sync On
Green (SOG), and an enhanced OSD.
1.1 Features
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Fully integrated 135MHz 8-bit triple-ADC, PLL, and pre-amplifier
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GmZ2 scaling algorithm featuring new Adaptive Contrast Enhancement (ACE)
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On-chip programmable OSD engine
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Integrated PLLs
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10-bit programmable gamma correction
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Host interface with 1 or 4 data bits
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Pin-compatible with gmB120
Integrated Analog Front End
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Integrated 8-bit triple ADC
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Up to 135MHz sampling rates
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No additional components needed
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All color depths up to 24-bits/pixel are supported
High-Quality Advanced Scaling
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Fully programmable zoom
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Independent horizontal / vertical zoom
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Enhanced and adaptive scaling algorithm for optimal image quality
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Recovery Mode / Native Mode
Input Format
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Analog RGB up to XGA 85Hz
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Support for Sync On Green (SOG)
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Support for composite sync modes
Output Format
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Support for 8 or 6-bit panels (with high quality dithering)
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One or two pixel output format
Built In High-Speed Clock Generator
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Fully programmable timing parameters
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On-chip PLLs generate clocks for the on-chip ADC and pixel clock from a single reference oscillator
Auto-Configuration / Auto-Detection
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Phase and image positioning
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Input format detection
Operation Modes
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Bypass mode with no filtering
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Multiple zoom modes:
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With filtering
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With adaptive (ACE) filtering
Integrated On-Screen Display
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On-chip character RAM and ROM for better customization
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External OSD supported for greater flexibility
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Supports both landscape and portrait fonts
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Many other font capabilities including: blinking, overlay and transparency
GMZAN1