VGA Vesa DDC显示接口

[ 返回目录 ]

    VGA 是 Video Graphics Adapter(Array) 的缩写，VESA 是 Video Electronics Standards Association 的缩写，DDC 是 Display Data Channel 的缩写，信号类型为模拟类型，显示卡端的接口为 15 针母插座：

15 PIN HIGHDENSITY D-SUB FEMALE

显示器连线端的接口为 15 针公插头：
15 PIN HIGHDENSITY D-SUB MALE

引脚定义

　

Pin Name Dir Description
1 RED --> Red Video (75 ohm, 0.7 V p-p)
2 GREEN --> Green Video (75 ohm, 0.7 V p-p)
3 BLUE --> Blue Video (75 ohm, 0.7 V p-p)
4 RES - Reserved
5 GND --- Ground
6 RGND --- Red Ground
7 GGND --- Green Ground
8 BGND --- Blue Ground
9 +5V --> +5 VDC
10 SGND --- Sync Ground
11 ID0 <-- Monitor ID Bit 0 (optional)
12 SDA <-> DDC Serial Data Line
13 HSYNC or CSYNC --> Horizontal Sync (or Composite Sync)
14 VSYNC --> Vertical Sync
15 SCL <-> DDC Data Clock Line