DRAM speed of
120
nanosecond is critical but acceptable in
most
cases.
DRAM speed of
100
nanosecond is recommended
especially when using graphics
resolution of 800x600 in 256
colors
and
1024x768
non-interlaced mode
(see
oscillators
section for details).
The d igital-to-analog converter chip
The Qtec VGA1024
basically
functions in digital mode.
However,
the VGA and new-generation monitors operate in analog mode.
The
digital-to-analog chip converts the digital signals into analog
signals before they are transmitted to the analog monitor.
Oscillators
Oscillators
are the sources of various timing frequencies required
to generate various resolutions of the display adapter.
Following
is
a table of your Qtec VGA1024's oscillators, their resolutions
and frequencies:
-urn
36 MHz
44.9 Wir/
6s mi/
26.322MHz
25.175MHz
Ml
DAC
ET3000-AX
VGA-SYNC
Jl
Qtec VGA1024 board
-88-
Содержание Qtec VGA 1024
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