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2-3 TIMING CHART
DESCRPTION
I.B.M VESA
720*400 640*480 1024*768
(I)
640*480 800*600 800*600 800*600 1024*768 800*600 1024*768 1280*1024 1024*768 1280*1024 1024*768
H
f KHz
31.469 31.469 35.52 37.860 37.88 46.875 48.077 48.363 53.674 56.476 63.702 68.677 79.976 81.400
A uS
31.778 31.778 28.15 26.413 26.40 21.333 20.800 20.677 18.631 17.707 15.698 14.561 12.504 12.285
B uS
3.813 3.813 3.92 1.270 3.20 1.616 2.400 2.092 1.138 1.813 1.358 1.016 1.067 0.988
C uS
1.907 1.907 1.25 4.603 2.20 3.232 1.280 2.262 2.702 1.920 1.812 2.201 1.837 1.624
D uS
25.422 25.422 22.80 20.317 20.00 16.162 16.000 15.754 14.222 13.653 12.075 10.836 9.481 9.037
E uS
0.636 0.636 0.18 0.762 1.00 0.323 1.120 0.369 0.569 0.320 0.453 0.508 0.119 0.635
POL.
NEG NEG POS POS POS POS POS NEG POS NEG NEG POS NEG POS
V
f Hz
70.087 59.940 86.906 72.809 60.317 75Hz 72.188 60.00 85.061 70.00 60.00 84.997 75.025 100.00
O mS
14.268 16.683 11.50 13.735 16.58 13.333 13.853 16.667 11.756 14.272 16.640 11.765 13.329 10.000
P mS
0.064 0.064 0.113 0.079 0.11 0.064 0.125 0.124 0.056 0.106 0.047 0.044 0.038 0.037
Q mS
1.080 1.048 0.563 0.740 0.61 0.448 0.478 0.60 0.503 0.513 0.471 0.524 0.475 0.516
R mS
12.711 15.253 10.81 12.678 15.84 12.8 12.480 15.88 11.179 13.599 16.075 11.183 12.804 9.435
S mS
0.413 0.318 0.014 0.238 0.03 0.021 0.770 0.062 0.019 0.053 0.047 0.015 0.013 0.012
POL.
POS NEG POS POS POS POS POS NEG POS NEG NEG POS POS POS
VIDEO
SYNC
HORIZONTAL VERTICAL
A
B
C D
E
O
P
Q R
S
A : LINE TIME TOTAL B :HORIZONTAL SYNC WIDTH
C : BACK PORCH D : ACTIVE TIME
E : FRONT PORCH
O : FRAME TIME TOTAL P : VERTICAL SYNC WIDTH
Q : BACK PORCH R : ACTIVE TIME
S : FRONT PORCH
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