DVI & 720p & 1080i & sigle vs. dual link

Discussion in 'Home Theater Projects' started by Dave^Wein, Aug 1, 2003.

  1. Dave^Wein

    Dave^Wein Extra

    Joined:
    Jul 19, 2003
    Messages:
    19
    Likes Received:
    0
    I'm getting a Panasonic PT-53WX53 tomorrow to go with my SIR-T165.

    Do I need a dual link DVI cable? Some stuff I found on the web indicated that to do HDTV on a CRT device over DVI required a dual link cable. Is this correct?

    The SIR-T165 came with a single link cable.

    Dave
     
  2. Shane Morales

    Shane Morales Second Unit

    Joined:
    Jul 9, 2003
    Messages:
    433
    Likes Received:
    0
    Found this-

    Dual Link:
    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" some websites are using about dual link cables being 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 HDTV's, Projectors, Plasma Screens, and High Definition Set top Boxes. 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.

    http://www.ramelectronics.net/html/DVI_cables.html
    http://www.mycableshop.com/3rd_Level/Video-Flat.htm
     

Share This Page