
4-7
5. Reference Signal Timing
Item
Abbreviation
VESA 1280x1024 75Hz
Pixel frequency
fc 135.00MHz
Horizontal frequency
fh 79.98kHz
Line Time total
Th 12.50us
1688CLK
Horizontal active display
Thd 9.48us
1280CLK
Horizontal sync pulse
Thp 1.07us
144CLK
Horizontal back porch
Thb 1.84us
248CLK
Horizontal front porch
Thf 0.12us
16CLK
Horizontal sync polarity
POS
Vertical Frequency
fv 75.03Hz
Frame time total
Tv 13.33ms
1066H
Vertical active display
Tvd 12.80ms 1024h
Vertical sync pulse
Tvp 0.04ms 3H
Vertical back porch
Tvb 0.48us 38H
Vertical front porch
Tvf 0.01ms 1H
Vertical sync polarity
POS