8. Timing Charts
SEPARATE SYNC.
HORIZONTAL
VERTICAL
Sync. Polarity: Positive/Negative
PRESET TIMING-VGA/SVGA
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| VGA |
| SVGA | |
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| 640x350 |
| 720x400 | 640x480 | 800x600 | 800x600 |
Fh (KHz) | 31.468 |
| 31.468 | 31.469 | 35.156 | 37.879 |
A µs (Line time total) | 31.778 |
| 31.778 | 31.778 | 28.445 | 26.400 |
B µs (Synch. pulse) | 3.813 |
| 3.813 | 3.813 | 2.000 | 3.200 |
C µs (Back porch) | 1.907 |
| 1.907 | 1.907 | 3.556 | 2.200 |
D µs (Active) | 25.423 |
| 25.423 | 25.422 | 22.222 | 20.000 |
E µs (Front porch) | 0.636 |
| 0.636 | 0.636 | 0.667 | 1 .000 |
Fv (Hz) | 70.000 |
| 70.000 | 59.940 | 56.250 | 60.317 |
P ms (Frame time total) | 14.286 |
| 14.286 | 16.683 | 17.778 | 16.579 |
Q ms (Synch. pulse) | 0.063 |
| 0.063 | 0.064 | 0.057 | 0.106 |
R ms (Back porch) | 1.937 |
| 1.143 | 1.049 | 0.626 | 0.607 |
S ms (Active) | 11.111 |
| 12.698 | 15.253 | 17.067 | 15.840 |
T ms (Front porch) | 1.175 |
| 0.381 | 0.318 | 0.028 | 0.026 |
| Separate |
| Separate | Separate | Separate | Separate |
| Sync. |
| Sync. | Sync. | Sync. | Sync. |
H. Sync. Polarity | Positive |
| Negative | Negative | Negative | Positive |
V. Sync. Polarity | Negative |
| Positive | Negative | Negative | Positive |
| No |
| No | No | No | No |
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