Everything You Need to Know About DVI Cables

Digital Video Interface or DVI is a popular video interface technology designed to maximize the quality of output of flat LCD screens and contemporary video graphic cards. DVI replaced the past Plug & Display [P&D] standard and is an advanced version of DFP format for old flat panels. Nowadays, video card manufacturers include a couple of DVI output ports.

DVI cables were also popular as a digital transfer method for HDTVs, movies, videos, and DVDs. Now, the digital market has settled with the HDMI interface for HDTVs and DVI is exclusively used in the computer sector.

Before you look for PrimeCables DVI cableconsider the connector and cable type. Both are crucial specifications that you need to understand.

DVI cable types

The DVI connectors are available in two formats – Single and Dual link. DVI cables transfer information using Transition Minimized Differential Signaling [TMDS] format.

Single link cable – One TMDS transmitter with 165 Mhz is used. Resolution around 1920 x 1200 at 60 Hz is supported. It uses only 12 pins out of the 24 available.

Dual-link cable – Two TMDS transmitter [165 Mhz + 165 Mhz] is used, so the DVI pin gets double transmission power, so the signal quality and speed increases. Resolution around 2560 x 1600 at 60 Hz is supported. All the 24 pins are used.

Every DVI devices are unable to accept the dual-link cables, so please check this!

DVI connector types

DVI-D 

  • It is used to digitally connect LCD monitors to source videos directly.
  • It offers high-quality images than analog because of its digital format nature.
  • Video cards generate digital video signals at the start, which gets converted at VGA output into analog.
  • The analog signal moves towards the monitor and gets reconverted into a digital signal.
  • The analog conversion process gets eliminated, thus enhancing the connection between display and source.

DVI-A

  • You can connect DVI computer to VGA monitor because both carry the same signals.
  • DVI signal gets transferred to an analog display like a CRT monitor.
  • Quality suffers a little because the process involves the conversion of digital to analog.

DVI -I 

You can enjoy both worlds that is analog-to-analog or digital-to-digital signal. The cable is integrated and capable of transmitting signals in any situation either analog or digital.

DVI digital or analog format cannot be interchanged. IT means DVI-A cable will never work on a digital system and DVI-D is not compatible with an analog system. You will need a converter in both cases.

If you are still in doubt contact primecables.ca!

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