Tseng Qtec VGA 1024, Installation Manual

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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-