15针VGA 显卡接口详解
VGA 是 Video Graphics Adapter 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，引脚定义为：
| 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 | ID2 |
 |
Ground |
| 5 | GND |
 |
Ground |
| 6 | RGND |
|
Red Ground |
| 7 | GGND |
|
Green Ground |
| 8 | BGND |
|
Blue Ground |
| 9 | KEY | - | Key |
| 10 | SGND |
|
Sync Ground |
| 11 | ID0 |
|
Ground |
| 12 | ID1 or SDA |
|
SDA |
| 13 | HSYNC or CSYNC |
|
Horizontal Sync (or Composite Sync) |
| 14 | VSYNC |
|
Vertical Sync |
| 15 | ID3 or SCL |
|
SCL |
上面共有15针，分成三排，每排五个。并且VGA接口扩展性比较强，可以轻松与DVI接口进行转换，VGA接口介绍如下图：
以15针VGA 显卡接口详解上内容出自土豆PE，感谢浏览~！