VGA connector
From Wikipedia, the free encyclopedia
| VGA connector (DE-15/HD-15) | ||
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| Type | Analogue computer video connector | |
| Production history | ||
| Designer | IBM based on D-subminiature | |
| Designed | 1987 | |
| Produced | 1987 to present | |
| Superseded by | DVI (1999) | |
| Specifications | ||
| Video signal | RGB video signal plus option H and V sync | |
| Data signal | I²C data channel for DDC information | |
| Pins | 15 | |
| Connector | DE-15 | |
| Pin out | ||
 A female DE15 socket (videocard side). |
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| Pin 1 | RED | Red video |
| Pin 2 | GREEN | Green video |
| Pin 3 | BLUE | Blue video |
| Pin 4 | N/C | Not connected |
| Pin 5 | GND | Ground (HSync) |
| Pin 6 | RED_RTN | Red return |
| Pin 7 | GREEN_RTN | Green return |
| Pin 8 | BLUE_RTN | Blue return |
| Pin 9 | +5 V | +5 V (DDC) |
| Pin 10 | GND | Ground (VSync, DDC) |
| Pin 11 | N/C | Not connected |
| Pin 12 | SDA | I²C data |
| Pin 13 | HSync | Horizontal sync |
| Pin 14 | VSync | Vertical sync |
| Pin 15 | SCL | I²C clock |
| The image and table details the newer 15-pin VESA DDC2 connector. Note that the pin numbering in the diagram is a female connector at the graphics adapter; the pin numbering on the male connector, usually the cable end, is the mirror image. | ||
A VGA connector as it is commonly known (other names include RGB connector, D-sub 15, mini sub D15 and mini D15) is a three-row 15 pin DE-15. There are four versions: original and DDC2 pinouts, the far older and less flexible DE-9 connector, and a Mini-VGA used for laptops.
The common 15-pin VGA connector found on most video cards, computer monitors, and other devices, is almost universally called "HD-15". HD stands for "high-density", which distinguishes it from connectors having the same form factor but only 2 rows of pins. However, this connector is often incorrectly referred to as a DB-15 or HDB-15.[citation needed]
"VGA connectors" and their associated cabling are almost always used solely to carry analog component RGBHV (red - green - blue - horizontal sync - vertical sync) video signals along with DDC2 digital clock and data.
Where size is a constraint (such as laptops) a mini-VGA port can sometimes be found in place of the full-sized VGA connector.
[edit] See also
- Video Graphics Array (VGA)
- Digital Visual Interface (DVI)
- Display Data Channel (DDC/DDC2)
- Video Electronics Standards Association (VESA)
- Extended display identification data (EDID)
- Super Video Graphics Array (SVGA)
- D-Terminal
- Component video
[edit] External links
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