720p Systems
Progressive Analog Component Video
Analog component signals are comprised of three signals, analog R′G′B′ or YPbPr. Referred to as 720p (since there are typically 720 active scan lines per frame and they are progressive), the frame rate is usually 59.94 Hz (60/1.001) to simplify the generation of (M) NTSC video. The analog interface uses 750 lines per frame, with active video present on lines 26–745, as shown in Figure 3.26.
FIGURE 3.26. 720p Vertical Interval Timing.
For the 59.94 Hz frame rate, each scan line time (H) is about 22.24 μs. Detailed horizontal timing is dependent on the specific video interface used, as discussed in ...
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