Circuit Description - ViewSonic VS11755 Service Manual

4. Circuit Description

The RTD2533V(H) is total solution graphics processing IC for LCD monitors with panel resolutions up to WXGA. It
is configured with a high-speed integrated triple-ADC/PLL, an integrated DVI receiver, a high quality display
processing engine, and an integrated output display interface that can support RSDS panel interface format. To
further reduce system costs, the RTD2533V(H) also integrates intelligent power management control capability and
spread- spectrum support for EMI management. The RTD2533V(H) incorporates the world's first coherent
oversampled RGB graphics ADC in a monitor controller system. The oversampling ADC samples the input RGB
signals at a frequency that is much higher than the signal source pixel rate. This can preserve details in the video
signal that ordinarily would be lost due to input signal jitter or bandwidth limitations in non-oversampled systems.
The RTD2533V(H) also for the digital output video to the display panel that preserves the advantages of a fixed
output clock rate, while eliminating the output end of frame short-line.
Dual
Analog RGB
interface
engine
Analog HSYN
C/
DVI
Display processing
engine
OSD Clock Gen
XTAL/EXT CLK
15
RSDS Panel
interface
MCU
interface
To Panel