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6
ViewSonic Corporation
Confidential - Do Not Copy
VA1912w-3_VA1912wb-3
2.5 ELECTRICAL REQUIREMENT
Horizontal / Vertical Frequency
Horizontal Frequency
30 – 82 kHz
Vertical Refresh Rate
50 – 85* Hz.
Maximum Pixel Clock
135 MHz
(EDID file is 140MHz)
Sync Polarity
Independent of sync polarity.
Timing Table
Item Timing
Analog
Digital
1
640 x 350 @ 70Hz, 31.5kHz
Yes
Yes
2
640 x 400 @ 60Hz, 31.5kHz
Yes*
Yes
3
640 x 400 @ 70Hz, 31.5kHz
Yes
Yes
4
640 x 480 @ 60Hz, 31.5kHz
Yes
Yes
5
640 x 480 @ 67Hz, 35.0kHz
Yes
Yes
6
640 x 480 @ 72Hz, 37.9kHz
Yes
Yes
7
640 x 480 @ 75Hz, 37.5kHz
Yes
Yes
8
640 x 480 @ 85Hz, 43.27kHz
Yes
Yes
9
720 x 400 @ 70Hz, 31.5kHz
Yes
Yes
10
800 x 600 @ 56Hz, 35.1kHz
Yes
Yes
11
800 x 600 @ 60Hz, 37.9kHz
Yes
Yes
12
800 x 600 @ 75Hz, 46.9kHz
Yes
Yes
13
800 x 600 @ 72Hz, 48.1kHz
Yes
Yes
14
800 x 600 @ 85Hz, 53.7kHz
Yes
Yes
15
832 x 624 @ 75Hz, 49.7kHz
Yes
Yes
16
1024 x 768 @ 60Hz, 48.4kHz
Yes
Yes
17
1024 x 768 @ 70Hz, 56.5kHz
Yes
Yes
18
1024 x 768 @ 72Hz, 58.1kHz
Yes
Yes
19
1024 x 768 @ 75Hz, 60.0kHz
Yes
Yes
20
1024 x 768 @ 85Hz, 68.67kHz
Yes
Yes
21
1152 x 864@ 75Hz, 67.5kHz
Yes
Yes
22
1280 x 1024 @ 60Hz, 63.4kHz
Yes
Yes
23
1280 x 1024 @ 75Hz, 79.97kHz
Yes
No
24
1280x 768 @ 60Hz, 47.78kHz
Yes
Yes
25
1280 x 960 @60Hz, 60kHz
Yes
Yes
26
1440 x 900 @ 60Hz, 55.96kHz
Yes
Yes
*The image vertical size might not be full screen.