Micro Chip Display Projection TV User Guide Model name VESA
  Preset Timing Chart & Reference Timing Table 
Model no.  1  2  3 4 5 6 7 
Model name  EGA/70 EGA/85 VGA VGA VGA VGA VESA
Horizontal dots  640  640  640 640 640 640 800 
Vertical lines  350  350  480 480 480 480 600 
Pixel clock (mhz)  25.175 31.5 25.175 31.5 31.50 36  36 
Horizontal freq 
(khz) 
31.469 37.861 31.469 37.861 37.5 43.269 35.156
Sync. Polarity  +  + - - - - + 
A h.total (us) 
(pixels) 
31.778
(800)
(832) 31.778 
(800)
832 26.667
(840)
23.111
(832)
1024
B h.sync 
(us)(pixels) 
3.813
(96) 
(64) 3.813
(96)
40 2.032
(64)
1.556
(56)
72 
C h.back porch 
(us) (pixels) 
1.907
(48) 
(96) 1.907
(48)
128 3.810
(120)
2.222
(80)
128 
D h.active 
(us) (pixels) 
25.422
(640)
(640) 25.422 
(640)
640 20.317
(640)
17.778
(640)
800 
E h.front porch 
(us) (pixels) 
(16) (32) 0.318
(16)
24 0.508
(16)
1.556
(56)
24 
Vertical freq (hz)  70.087 85.08 59.94 72.809 75 85.008 56.25
Sync. Polarity  -  -  - - - - + 
O v.total (ms) 
(lines) 
14.268
(449)
(445) 16.684 
(525)
520 13.333
(500)
11.764
(509)
625 
P v.sync 
(ms) (lines) 
0.064
(2) 
(3) 0.064
(2) 
3 0.080
(3) 
0.069
(3) 
2 
Q v.back porch 
(ms) (lines) 
1.112
(60) 
(60) 1.048
(33)
28 0.427
(16)
0.578
(25)
22 
R v.active (ms) 
(lines) 
11.122
(350)
(350) 15.254 
(480)
480 12.800
(480)
11.093
(480)
600 
S v.front porch   
(ms) (lines) 
0.222
(37) 
(32) 0.318
(10)
9 0.027
(1) 
0.023
(1) 
1 










