Service manual

ANALOG to DIGITAL CONVERSION and PROCESSING
General Description of Mascot
Mascot V is a highly integrated solution (U1) that combines a high performance ADC with an advanced image
process controller. Using advanced image scaling algorithms, Mascot V has intelligently adaptive sub-algorithms
that will automatically optimize the display quality for different images – the text is sharper and the graphics is
smoother.
The build-in analog interface includes an 80MHz, 8-bit 3-channel ADC, pre-amplifier, and VGA, allowing
seamless support to resolution from VGA to XGA. ADC function block diagram, see FIG3-1.
FIG3-1 ADC Functional Block Diagram
ViewSonic Corporation
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Confidential --Do Not Copy VG150m/mb