SVGA connections have been the standard way of connecting computers to their monitors since 1990.The SVGA (Super VGA) video interface offers more colors and resolutions then the VGA (Video Graphics Array) interface it replaced, but does not really exist as a single standard. |
The SVGA (Super VGA) video interface offers more colors and resolutions then the VGA (Video Graphics Array) interface it replaced, but does not really exist as a single standard. The primary standard refers to the BIOS, and how the computer talks to the monitor. The SVGA standard was released in 1990, replacing the VGA standard. The SVGA screen resolution is 800 x 600 pixels at a bandwidth of 45MHz.
VESA Display Data Channel [DDC] is a VESA standard that defines how to read certain pins in a standard SVGA Monitor to query the monitor's capabilities. The DDC interface pins use the I2C interface bus, as DDC Data for SDA, and DDC Clock as SCL. Refer to the diagram and tables below for the various SVGA pinouts.
SVGA Connections
Pin # | Pin Name | Pin Description |
---|---|---|
1 | RED Video | Red Video |
2 | GREEN Video | Green Video |
3 | BLUE Video | Blue Video |
4 | NA [ID2] | Monitor ID, Bit #2 |
5 | n/c | not connected |
6 | RGND | Red Ground |
7 | GGND | Green Ground |
8 | BGND | Blue Ground |
9 | Key | No pin installed |
10 | Ground | Ground |
11 | ID0 | Monitor ID Bit #0 |
12 | ID1 | Monitor ID Bit #1 |
13 | HSYNC | Horizontal Sync / Composite |
14 | VSYNC | Vertical Sync |
15 | n/c | not connected |
VESA DDC SVGA Connections
Pin # | Pin Name | Pin Description |
---|---|---|
1 | RED Video | Red Video |
2 | GREEN Video | Green Video |
3 | BLUE Video | Blue Video |
4 | NA [ID2] | Reserved [Monitor ID, Bit #2] |
5 | GND | Ground |
6 | RGND | Red Ground |
7 | GGND | Green Ground |
8 | BGND | Blue Ground |
9 | Key | No pin installed |
10 | SGND | Sync Ground |
11 | ID0 | Monitor ID Bit #0 |
12 | SDA [ID1] | DDC data Line [Monitor ID Bit #1] |
13 | HSYNC | Horizontal Sync |
14 | VSYNC | Vertical Sync |
15 | SCL [ID3] | DDC Data Clock Line [Monitor ID Bit #3] |
VGA 9pin D-Sub Connector
Pin # | Pin Name | Pin Description |
1 | RED | Red Video |
2 | GREEN | Green Video |
3 | BLUE | Blue Video |
4 | HSYNC | Horizontal Sync |
5 | VSYNC | Vertical Sync |
6 | RGND | Red Ground |
7 | GGND | Green Ground |
8 | BGND | Blue Ground |
9 | SGND | Sync Ground |
VGA Adaptor Cable - 9 to 15 pin
DB9 Pin # | Pin Description | HD15 Pin # |
1 | Red Video | 1 |
2 | Green Video | 2 |
3 | Blue Video | 3 |
4 | Horizontal Sync | 13 |
5 | Vertical Sync | 14 |
6 | Red GND | 6 |
7 | Green GND | 7 |
8 | Blue GND | 8 |
9 | Sync GND | 10 + 11 |
MAC II / Quadra Monitor / Video Connector
Pin # | Pin Description |
1 | red ground |
2 | red |
3 | C sync |
4 | sense pin |
5 | green |
6 | green ground |
7 | sense pin |
8 | n/c |
9 | blue |
10 | sense pin |
11 | ground |
12 | V sync |
13 | blue ground |
14 | ground |
15 | H sync |
Macintosh to SVGA Video Adapter Cable
Used for connection of a Mac computer to a VGA monitor
Mac Pin # | Pin Description | VGA Pin # |
1 | Red Ground | 6 |
2 | Red | 1 |
3 | Composite sync | 13 |
4 | Monitor Sense 0 | 4 |
5 | Green | 2 |
6 | Green Ground | 7 |
7 | Monitor Sense 1 | 11 |
8 | No connection | n/c |
9 | Blue | 3 |
10 | Monitor sense 2 | 12 |
11 | Sync Ground | 10 |
12 | Vertical Sync | 14 |
13 | Blue Ground | 8 |
14 | Horizontal Sync Ground | n/c |
15 | Horizontal Sync | n/c |
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