Learn Electronics
Video Standards
VGA (RGBHV)
3min
the vga connector (d sub 15 pin) often used in old computers and monitors, uses the rgbhv video standard below is the pinout for the vga connector signals resolutions rgbhv over vga supports the following resolutions officially at the time of release vga 60/70hz 640 Ã 480 svga 60hz 800 Ã 600 xga 60hz 1024 Ã 768 sxga 60hz 1280 Ã 1024 sxga 60hz 1280 Ã 960 wxga 60hz 1280 Ã 768 wxga 60hz 1366 Ã 768 wxga 60hz 1280 Ã 800 wxga++ 60hz 1600 Ã 900 some less common modes are 640 Ã 350 or 640 Ã 200 in 16 colors or monochrome (ega/cga compatibility) 320 Ã 200 in 256 colors (mode 13h) 320 Ã 200 in 4 or 16 colors (cga compatibility) there are many resolutions vga can support by simply altering the pixel clock, timings and quality of the sender and receiver unofficially the vga connector using rgbhv can today support right up to 2048x1536 voltage levels there are 2 standards of expected voltage level for rgb the rgb information is typically 0 7v terminated / 1 4v floating with a 0 2v offset so 0 8v terminated / 1 6v floating if your data is sitting at a 0 1/0 2v offset (to allow for sync restoration check out the voltage levels page for more info