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參數資料
| 型號： | GM2125 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | ANALOG INTER FACE XGA/SXGA ONPANEL LCD PANEL CONTROLLER |
| 中文描述： | 模擬國際米蘭的XGA / SXGA ONPANEL液晶顯示器控制器 |
| 文件頁數： | 29/54頁 |
| 文件大小： | 1339K |
| 代理商： | GM2125 |
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***
Genesis Microchip Confidential ***
gm2115/25 Preliminary Data Sheet
June 2002
27
C2115-DAT-01B
4.5.6 Input Pixel Measurement
The gm2115/25 provides a number of pixel measurement functions intended to assist in
configuring system parameters such as pixel clock, SDDS sample clocks per line and phase
setting, centering the image, or adjusting the contrast and brightness.
4.5.7 Image Phase Measurement
This function measures the sampling phase quality over a selected active window region.
This feature may be used when programming the source DDS to select the proper phase
setting. Please refer to the gm5115/25 Programming Guide for the optimized algorithm.
4.5.8 Image Boundary Detection
The gm2115/25 performs measurements to determine the image boundary. This information
is used when programming the Active Window and centering the image.
4.5.9 Image Auto Balance
The gm2115/25 performs measurements on the input data that are used to adjust brightness
and contrast.
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The gm2115/25 provides high-quality digital color controls. These consist of a subtractive
"black level" stage, followed by a full 3x3 RGB matrix multiplication stage, followed by an
signed offset stage as shown in Figure 17.
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+/
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+/
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Additive
Offset
(Brightness)
3x3 Color
Conversion
Subtractive
Offset
(Black Level)
Red In
Red Out
Green In
Green Out
Blue In
Blue Out
Figure 17.
RealColor Digital Color Controls
This structure can accommodate all RGB color controls such as black-level (subtractive
stage), contrast (multiplicative stage), and brightness (signed additive offset). In addition, it
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