DVI-Dual Link? Single Link? Which do I need?
Dual T.D.M.S. (transition minimized differential signaling) "links". DVI can
have up to two TMDS links. Each link has three data channels for RGB
information with a maximum bandwidth of 165 MHz, which is equal to 165 million
pixels per second. Dual-link connections provide bandwidth for resolutions up
to 2048 x 1536p.|
Single Link: Single T.D.M.S. link. Each link has three data channels for RGB information with a maximum bandwidth of 165 MHz, which is equal to 165 million pixels per second. Bandwidth for a single-link connection supports resolutions of over 1920 x 1080 at 60 Hz (HDTV).
Dual link vs. Single Link: Don't believe the "hype" from some websites indicating that dual link cables are superior to single link cables. A single link cable is 100% as good as a dual link cable for single link equipment which covers about 99.5% of current equipment, including HDTVs, Projectors, Plasma Screens, and High Definition Set top Boxes. If your equipment does not specifically state it is Dual link in its specifications, it almost certainly is not. A better quality cable is a better quality cable, and single and dual link has nothing to do with quality. On the other hand, if both devices being connected support Dual links, then a dual link cable is the proper cable for the application, and you will have the capability of much greater resolutions and refresh rates. A properly designed Dual link cable should have no negative effects when used with single link equipment.
"Since it is Digital, Quality does not make a difference": This is false. DVI does not have any error correction. While you can get away with lower quality cables for short lengths, lower quality cables will have an increasing amount of errors with increasing length. Since the quality of implementation of DVI transmitters and receivers varies widely in equipment, the best reasonably priced cable should be used to ensure the best possible video quality.
Analog with DVI
Click here to see a list of items related to DVI
This is where the specification divides itself in two; the DVI-D connector features only the 24-pins necessary for purely digital operation while a DVI-I connector features both the 24 digital pins and the 5 analog pins. Officially there is no such thing as a DVI-A analog connector with only the 5 analog pins although some literature may indicate otherwise. By far, the vast majority of graphics cards with DVI support feature DVI-I connectors.
Mas200 Accounting Software | Audio & Video Accessories | Cable Assemblies Copper & Fiber | Products for computer applications | Communication, Telephone & Cell Phone Accessories | Cable Installation Products | Raw Cable, Connectors & Parts | Power Accessories including UPS, Surge Protectors, and Adapters | Tools & Testers | Wire (Raw Cable)
All contents Copyright © 1996-2017. All Rights Reserved.