DVI CABLE SPLITTER DVI VIDEO CABLES DVI MONITOR CABLES 18+1 24+1 DVI-D DVI-A GOLD PLATED MINI DVI MI

Price: US $ 1.2 - 10
Brand Name: HK
Model Number: DVI CABLE gold plated
Country/Region: China
Post Date: Mar 27,2012

Product Description: DVI CABLE SPLITTER DVI VIDEO CABLES DVI MONITOR CABLES 18+1 24+1 DVI-D DVI-A GOLD PLATED MINI DVI MI


1.DVI CABLE SPLITTER
2.DVI VIDEO CABLES
3.DVI MONITOR CABLES

4.COMPATIBLE WITH HDMI,VGA
5.PIN 18+1,24+1, GOLD PLATED,MINI DVI MICRO DVI

                                  DVI(Digital Visual Interface)Interface:Video interface standardDevices:Flat panel LCD computer displaysdigital projectorscompatibility:partially compatibel with HDMIstandard in digital mode (DVI-D)VGA in anolog mode(DVI-A)Plug pin18Pin+124Pin+1Video signalDigital video steam.(Single) WUXGA 1920 x 1200 @60Hz(Dual) WQXGQ (2560 x 1600)Data signalR.G.B data + clockdisplay data channelBandwith(Single Link) 3.96Gbit/s(Dual Link) 7.92Gbit/sProtocal3 x Transition MinimizedDifferential Singaling Data + clockPins18+124+1Pin 1TMDS Data 2-, Digital red-Pin 2TMDS Data 2+, Digital red+Pin 3TMDS Data 2/4 shieldPin 4TMDS Data 4-, Digital green- Pin 5TMDS Data 4+, Digital green+Pin 6DDC clockPin 7DDC dataPin 8Analog vertical syncPin 9TMDS Data 1-, Digital green-Pin 10TMDS Data 1+, Digital green+Pin 11TMDS Data 1/3 shieldPin 12TMDS Data 3-, Digital blue-Pin 13TMDS Data 3+, Digital blue+Pin 14+5V,C34 Power for monitor when in standbyPin 15Ground, Return for pin 14 and anolog syncPin 16Hot plug detectPin 17TMDS data 0-, Digital blue-Pin 18TMDS data 0+, Digital blue+Pin 19TMDS data 0/5 shieldPin 20TMDS data 5-, Digital red-Pin 21TMDS data 5+, Digital red+Pin 22TMDS clock shieldPin 23TMDS clock+, Digital clock+Pin 24TMDS clock-, Digital clock-

The DVI interface uses a digital protocol in which the desired illumination of is transmitted as data. When the display is driven at its , it will read each number and apply that brightness to the appropriate pixel. In this way, each pixel in the output buffer of the source device corresponds directly to one pixel in the display device, whereas with an analog signal the appearance of each pixel may be affected by its adjacent pixels as well as by and other forms of analog .

DVI cable connectors are designed in such a way as not to allow the user to connect the cable in an incorrect position or orientation. DVI connectors are available in five models, differing in the way they handle analog or digital transfers.

In the digital transfer one or two channels are present. Video and monitor cards which are exclusively digital cannot be connected to analog, but can be connected to equipment that handles both analog and digital signals. The DVI standard also supports the (DDC) and the (EDID), which allows computers to communicate with different monitor extensions.

"DVI-I" stands for "DVI-Integrated" and supports both digital and analog transfers, so it works with both digital and analog Visual Display Units. "DVI-D" stands for "DVI-Digital" and supports digital transfers only.

DVI to HDMI

Unlike , DVI usually carries no audio data in its channel. However, as DVI is for the most part compatible with HDMI (see ), it is just as possible to support including audio data by incorporating the audio in the TMDS signal. Because DVI displays typically have no sound capabilities, a DVI to HDMI adapter/cable can then be used to connect the device to an HDMI display. For instance, this feature allows PCs to send audiovisual data to a . It is increasingly found on modern computer graphics cards (e.g. cards by and ) and certain motherboards with integrated graphics.

Technical discussion

The data format used by DVI is based on the serial format devised by the semiconductor manufacturer This uses (TMDS). A single DVI link consists of four twisted pairs of wires (red, green, blue, and clock) to transmit 24 bits per pixel. The timing of the signal almost exactly matches that of an analog video signal. The picture is transmitted line by line with blanking intervals between each line and each frame, and without . No compression is used and there is no support for only transmitting changed parts of the image. This means that the whole frame is constantly re-transmitted. The specification (see below for link) does, however, include a paragraph on "Conversion to Selective Refresh" (under 1.2.2), suggesting this feature for future devices.

With a single DVI link, the largest resolution possible at 60 Hz is 2.75 (including blanking interval). For practical purposes, this allows a maximum screen resolution at 60 Hz of 1915 x 1436 pixels (standard 4:3 ratio), 1854 x 1483 pixels (5:4 ratio) or 2098 x 1311 (widescreen 8:5 ratio). The DVI connector therefore has provision for a second link, containing another set of red, green, and blue twisted pairs. When more bandwidth is required than is possible with a single link, the second link is enabled, and alternate pixels may be transmitted on each, allowing resolutions up to 4 at 60 Hz. The DVI specification mandates a fixed single link maximum pixel clock frequency of 165 MHz, where all display modes that require less than this must use single link mode, and all those that require more must switch to dual link mode. When both links are in use, the pixel rate on each may exceed 165 MHz. The second link can also be used when more than 24 bits per pixel is required, in which case it carries the . The data pairs carry binary data at ten times the pixel clock reference frequency, for a maximum data rate of 1.65 /s x 3 data pairs for a single DVI link.

Like modern analog , the DVI connector includes pins for the (DDC). DDC2 (a newer version of DDC) allows the graphics adapter to read the monitor's (EDID). If a display supports both analog and digital signals in one input, each input can host a distinct EDID. If both receivers are active, analog EDID is used.

The maximum length of DVI cables is not included in the specification since it is dependent on bandwidth requirements (the resolution of the image being transmitted). In general, cable lengths up to 4.5 m (15 ft) will work for displays at resolutions of 1920 x 1200. Cable lengths up to 15 m (50 ft) can be used with displays at resolutions up to 1280 x 1024. For longer distances, the use of a DVI booster is recommended to mitigate signal degradation. DVI boosters may or may not use an external power supply.

Supplier Details:

Shenzhen Hongkai Electronics Factory

Sales:Mr. ray lu

Contact Phone:86-755-84616379

Main Products:Computer Cables & Connectors

Business type:Manufacturer

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