2.5 Electrical Requirement
Horizontal / Vertical Frequency
Horizontal Frequency
24 – 83 KHZ
Vertical Refresh Rate
50 – 76 HZ
Maximum Pixel Clock
Analog : 210 MHz
Digital : 180 MHz
Sync Polarity
Independent of sync polarity.
Support Timing Table
Analog
Item Timing
Sep
arated
Composite
SOG
Digit
al -
TMDS
Remark
1.
640 x 350 @
70 Hz, 31.5 KHz v
v
v
v
DMT.
For Separated
、
SOG and
Composite sync, switch
640x350@70,640x400@70,
and720x400@70 by [1]+[2]
short cut key ( primary =
720x400@70)
2.
640 x 400 @
60 Hz, 31.5 KHz v
v
v
v
DMT
For Separate, Composite
and SOG sync, switch
640x400@60Hz and
640x480@60Hz by [1]+[2]
short cut key (primary =
640x480@60Hz)
3.
640 x 400 @
70 Hz, 31.5 KHz v
v
v
v
DMT
For Separated
、
SOG and
Composite sync, switch
640x350@70,640x400@70,
and720x400@70 by [1]+[2]
short cut key ( primary =
720x400@70)
ViewSonic Corporation
VX2739wm-1
VX2739wm-CN
CONFIDENTIAL – DO NOT COPY
11
Summary of Contents for VX2739wm-1
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