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VESA Signal 640 x 480 @ 75 Hz timing

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General timing

Screen refresh rate 75 Hz
Vertical refresh 37.5 kHz
Pixel freq. 31.5 MHz

Horizontal timing (line)

Polarity of horizontal sync pulse is negative.

Scanline part Pixels Time [µs]
Visible area 640 20.31746031746
Front porch 16 0.50793650793651
Sync pulse 64 2.031746031746
Back porch 120 3.8095238095238
Whole line 840 26.666666666667

Vertical timing (frame)

Polarity of vertical sync pulse is negative.

Frame part Lines Time [ms]
Visible area 480 12.8
Front porch 1 0.026666666666667
Sync pulse 3 0.08
Back porch 16 0.42666666666667
Whole frame 500 13.333333333333

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