ViewSonic Corporation Confidential - Do Not Copy VX2235wm-3
5
4-4 ELECTRICAL REQUIREMENT
Horizontal / Vertical Frequency
Horizontal Frequency 24 – 82 KHZ
Vertical Refresh Rate 50 – 85* HZ
Maximum Pixel Clock 170 MHz
Sync Polarity Independent of sync polarity.
Timing Table
Analog
Item
Timing
Separated
Composite
SOG
Digital - TMDS
Remark
1 640 x 350 @ 70 Hz, 31.5 KHz
For Analog sync, OSD will be
640x350/640x400/720x400 (primary= 720x400).
2 640 x 350 @ 85 Hz, 37.9 KHz
For Analog sync, OSD will be
640x350/640x400/720x400 (primary= 720x400).
3 640 x 400 @ 60 Hz, 31.5 KHz
For Analog sync, switch 640x400@60Hz and
640x480@60Hz by [1]+[2] short cut key (primary =
640x480@60Hz)
4 640 x 400 @ 70 Hz, 31.5 KHz
For Analog sync, OSD will be
640x350/640x400/720x400 (primary= 720x400).
5 640 x 400 @ 85 Hz, 37.9 KHz
For Analog sync, OSD will be
640x350/640x400/720x400 (primary= 720x400).
6 640 x 480 @ 50 Hz, 24.7 KHz
7 640 x 480 @ 60 Hz, 31.5 KHz
For Analog sync, switch 640x400@60Hz and
640x480@60Hz by [1]+[2] short cut key (primary =
640x480@60Hz)
8 640 x 480 @ 67 Hz, 35 KHz
9 640 x 480 @ 72 Hz, 37.9 KHz
10 640 x 480 @ 75 Hz, 37.5 KHz
11 640 x 480 @ 85 Hz, 43.3 KHz
12 720 x 400 @ 70 Hz, 31.5 KHz
For Analog sync, OSD will be
640x350/640x400/720x400 (primary= 720x400).
13 720 x 400 @ 85 Hz, 37.9 KHz
For Analog sync, OSD will be
640x350/640x400/720x400 (primary = 720x400).
14 720 x 480 @ 60 Hz, 31.5 KHz For Analog sync, information OSD shows 640x480
15 720 x 576 @ 50 Hz, 31.3 KHz For Analog sync, information OSD shows 800x600
17 800 x 600 @ 56 Hz, 35.1 KHz
18 800 x 600 @ 60 Hz, 37.9 KHz
19 800 x 600 @ 72 Hz, 48.1 KHz
20 800 x 600 @ 75 Hz, 46.9 KHz
21 800 x 600 @ 85 Hz, 53.7 KHz
22 832 x 624 @ 75 Hz, 49.7 KHz
23 1024 x 768 @ 50 Hz, 39.6 KHz
For Analog sync, Switch 1024x768@50Hz and
1280x768@50Hz by [1]+[2] short cut key (primary =
1024x768@50Hz)
24 1024 x 768 @ 60 Hz, 48.4 KHz
25 1024 x 768 @ 70 Hz, 56.5 KHz
26 1024 x 768 @ 75 Hz, 60 KHz
27 1024 x 768 @ 75 Hz, 60.2 KHz
28 1024 x 768 @ 85 Hz, 68.7 KHz
29 1152 x 864 @ 75 Hz, 67.5 KHz
30 1152 x 870 @ 75 Hz, 68.7 KHz
32 1280 x 768 @ 50 Hz, 39.6 KHz
For Analog sync, Switch 1024x768@50Hz and
1280x768@50Hz by [1]+[2] short cut key (primary =
1024x768@50Hz)
33 1280 x 768 @ 60 Hz, 47.4 KHz
34 1280 x 768 @ 60 Hz, 47.8 KHz
35 1280 x 768 @ 75 Hz, 60.3 KHz For Analog sync, Switch 1024x768@75Hz and
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