A single-link HDMI has enough data bandwidth for 4K video. For DTV support, the reader is encouraged to read CTA 861G, which describes the widened scope of HDMI to include support for digital television and control features along with the traditional expectations for computer graphics support. HDMI supports both computer graphics and digital television formats. A cable is comprised of four shielded twisted pairs – one for the source clock signal and three for digital data – along with five individual wires for power, sub-communication functions, plus a ground reference for those functions. HDMI physical connections require precision shielded twisted pair cable. In actual implementation scenarios, HDMI connectors mostly stay at the source or destination as short I/O patch cables and don’t have as much practical impact on the ability of systems integrators to install HDMI distribution. Certainly, a smaller connector is better from a systems installation and integration point of view. HDMI utilizes a 19-pin plug that is more compact than DVI. Also, it’s a connector that both cable and Hollywood content protection pundits have endorsed. The notion is that HDMI is the consumer electronics single interconnect solution because it encompasses all necessary electrical interfaces into one small package that consumers consider easy to use. Refer to Figure 1 for HDMI basic performance parameters. In 2004, version 1.1 of the specification was released. The HDMI consortium (formed in 2002 and released the initial specification that same year. Consider HDMI as a superset which includes DVI along with digital audio support at many rates including surround sound, copyright protection, and consumer control-all packaged into a connector about half the physical size of the original DVI connector.

HDMI encompasses the original DVI electrical interface topology known within the electronics industry as TMDS, or transition-minimized differential signaling.

Hdmi cable length limit 4k