What Is VGA (Video Graphics Array)? – POFTUT
Video Graphics Array or VGA is a 15-pin video connector that’s primarily used to transmit graphics or media from supply to show like monitor, TV, projector, and so forth. VGA is created in 1987 which was primarily based on IBM primarily based D-subminiature connection sort. VGA was a highly regarded connection sort between the beginning of the 1900s and the tip of the 2010s. As an outdated know-how VGA makes use of analog indicators which makes it much less succesful than newer digital protocols like HDMI, DVI, and so forth. VGA is a generic time period even the true identify is Video Graphics Array it may be additionally named as Video Graphics Adaptor as a result of its connectivity capabilities for graphic playing cards.
VGA Use Circumstances
VGA is a highly regarded know-how and connection sort which is utilized in completely different instances and areas with a view to transmit or ship graphics or media from the supply gadget to the show. Under we’ll checklist some instance use instances about VGA.
- VGA primarily used to attach a Private Pc or PC to the monitor.
- Laptops and Ultrabooks use VGA with a view to share the media with the exterior monitor or projectors.
- SmartTV, Kodi, Chromecast can present graphics on the TV or projector by utilizing the VGA connection.
- Completely different streaming gadgets can be utilized to point out graphics on the TV or projector for the general public.
VGA Connection Parts
VGA connections consist of easy elements. VGA consists of two connectors with a view to join the supply and vacation spot. There’s a VGA cable between these two VGA connectors.
VGA Connector
VGA Connector is a very powerful a part of the VGA. It comprises 15 pins with a view to join cables with the supply gadget. These pins are used to transmit analog indicators. VGA connectors will be additionally referred to as as VGA male. Feminine sort VGA comprises holes that are situated on supply and vacation spot gadget like laptop computer, PC, Streaming gadgets, monitor, TV, projector. As we will see under a typical VGA comprises two screws each side of the connector head which is resided two sides of the ping. These screws are used to attach and nail the VGA connector to the supply of the vacation spot gadget to guard.
VGA Connector Varieties
Probably the most used and default VGA connector for a lot of the supply and vacation spot gadgets is DE-15 male connector which proven under. However for small issue gadgets, VGA gives a small and fewer pinned VGA connector referred to as as DE-9 which comprises solely 9 pins. BNC is one other sort of VGA connector which isn’t sensible or fashionable for use.
VGA DE-15 Connector
VGA DE-9 Connector
VGA BNC Connector
VGA Resolutions
As an analog know-how VGA helps resolutions not too excessive. However in some instances, this decision will be sufficient for use. Really, till the HD, 2K, or 4K resolutions, the VGA was highly regarded and sufficient to transmit completely different decision however with the development of the graphic resolutions, VGA grow to be inadequate. VGA know-how gives resolutions as much as 2040x1536px @85 Hz refresh charge. However it’s decision will be lesser in accordance with the VGA cable and connector high quality with the size of the cable.
When the VGA first launched the most well-liked decision was 640x540px which known as as VGA.
Tremendous Video Graphics Array or SVGAdecision is an prolonged model of the VGA and which can be utilized for 800×600 px.
Prolonged Graphics Array or XGA supported by a lot of the laptops and create in 1990. XGA present 1024x768px decision.
Tremendous Prolonged Graphics Array or SXGA helps 1280×1024 decision.
Extremely Prolonged Graphics Array or UXGA helps 1600×1200 decision.
Broad Prolonged Graphics Array or WXGA helps decision as much as 2040×1536 @85 Hz refresh charge.
VGA Pinout
VGA comprises 15 pins that are used to transmit sign from supply to vacation spot. As analog indicators are used extra cables or pins are required to ship knowledge. Under we’ll checklist the pins and their features.
| Pin 1 | RED | Crimson video |
|---|---|---|
| Pin 2 | GREEN | Inexperienced video |
| Pin 3 | BLUE | Blue video |
| Pin 4 | ID2/RES | Reserved since E-DDC, previously monitor id. bit 2 |
| Pin 5 | GND | Floor (HSync) |
| Pin 6 | RED_RTN | Crimson return |
| Pin 7 | GREEN_RTN | Inexperienced return |
| Pin 8 | BLUE_RTN | Blue return |
| Pin 9 | KEY/PWR | +5 V DC (powers EDID EEPROM chip on some displays), previously key |
| Pin 10 | GND | Floor (VSync, DDC) |
| Pin 11 | ID0/RES | Reserved since E-DDC, previously monitor id. bit 0 |
| Pin 12 | ID1/SDA | I²C knowledge since DDC2, previously monitor id. bit 1 |
| Pin 13 | HSync | Horizontal sync |
| Pin 14 | VSync | Vertical sync |
| Pin 15 | ID3/SCL | I²C clock since DDC2, previously monitor id. bit 3 |
VGA Extender
VGA can carry indicators round 20 meters which suggests after 20 meters the indicators cannot be carried correctly and with out errors and issues. In an effort to carry indicators greater than 20 meters, VGA Extender can be utilized which is able to merely enhance the sign energy. VGA Extenders additionally named VGA boosters and a number of VGA extenders can be utilized for single VGA connection in a serial connection topology.
VGA Options HDMI, DVI
As outdated applied sciences there are numerous options to the VGA. However a few of them are highly regarded the place they’re changed for the VGA. HDMI and DVI are the most well-liked options to the VGA. HDMI is extra widespread than VGA and DVI. Let’s evaluate VGA with the HDMI.
- HDMI makes use of digital indicators the place VGA makes use of analog indicators.
- Each HDMI and VGA are suitable with one another by utilizing converters.
- HDMI can transmit audio indicators in numerous codecs bu VGA cannot transmit audio indicators.
- HDMI gives numerous greater resolutions with higher colour depth than VGA.
