ViewSonic Corporation Confidential - Do Not Copy VX2235wm-1
6
2.5 ELECTRICAL REQUIREMENT
Horizontal / Vertical Frequency
Horizontal Frequency
24 – 82 kHz
Vertical Refresh Rate
50 – 85* Hz
Maximum Pixel Clock 150 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, the image vertical size image
will be not full screen (Still at the center), And the
OSD will be 640x350/640x400/720x400
(primary= 720x400).
2 640 x 350 @ 85 Hz, 37.9 KHz
For Analog sync, the image vertical size image
will be not full screen (Still at the center), And the
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, the image vertical size image
will be not full screen (Still at the center), And the
OSD will be 640x350/640x400/720x400
(primary= 720x400).
5 640 x 400 @ 85 Hz, 37.9 KHz
For Analog sync, the image vertical size image
will be not full screen (Still at the center), And the
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