scope:

This standard includes mechanisms that allow a digital video source (such as a cable or terrestrial set-top box, digital VCR, or DVD) to supply displayable, baseband, digital video to HDTV Monitors and EDTV Monitors (DTV Monitors), as defined in CEA Expands Definitions for Digital Television Products [15]. The timing requirements for video formats are described along with requirements for video format discovery. Also, a mechanism allowing the source device to discover the preferred format of a DTV Monitor is described. Four basic DTV formats are defined in this document for countries using 60 Hz. formats. Two are considered high definition formats (1920x1080i, 1280x720p), one is considered enhanced definition (720x480p), and one is considered standard definition (720X480i). Each of the two 720x480 formats is available in two different picture aspect ratios. A method of indicating to the DTV Monitor the aspect ratio and colorimetry in which the video should be displayed is also described.

For countries using 50 Hz formats, four similar basic DTV formats are also defined in this document. Two are considered high definition formats (1920x1 080i, 1280x720p), one is considered enhanced definition (720x576p), and one is considered standard definition (720X576i). Each of the two 720x576 formats is available in two different picture aspect ratios. The method of indicating to the DTV Monitor the aspect ratio and colorimetry in which the video should be displayed also applies.