Transition Minimized Differential Signaling

Transition Minimized Differential Signaling (TMDS ) is a standard developed by Silicon Image transmission standard to digitally transport uncompressed multimedia data to a device.

This standard was developed to completely eliminate electromagnetic interference, such as occur in the analog transmission in the normal case. With DVI or HDMI TMDS transmission is used to to drive very high-resolution screens. Because of the cable attenuation can at the intended line lengths up to 15 m at the time of max. 165 megapixel transmitted per second, which is at 60 Hz refresh rate, a maximum resolution of 1600 × 1200 pixels ( UXGA ) or 1920 × 1200 ( WUXGA ), if support graphics card and monitor " reduced blanking ".

Physically stand by three differential TMDS lines with max. 1.650 Gbit / s for the data and a differential clock line with the clock frequency of 1 /10 of the data rate (up to 165 MHz ) are available. In an extended version with a wider DVI connector six differential TMDS lines are used to max. To transport 330 megapixels per second, which allows a resolution of eg 2048 × 1536 pixels ( QXGA ) at 60 Hz refresh rate. The maximum resolution that is currently supported by DVI is 2560 × 1600 pixels at 60 Hz

  • Video Interface
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