Acer AL1931 - 2.4.2 Sync input; 2.4.3 Interface frequency

12
• Polarity Positive
• Amplitude 0 - 0.7 +/- 0.05 Vp
• Display Color same as LCD panel
2.4.2 Sync input
• Signal separate horizontal and vertical sync, or composite sync
which are TTL compatible
• Polarity positive and negative.
2.4.3 Interface frequency
The following frequency range is generalized by supported timing. If the entered
mode does not match the supported timing the display optimization will not be
assured.
• Horizontal Frequency 30KHz --80KHz(analog), 31.5– 64KHz(digital)
• Vertical Frequency 56Hz ---------75Hz
DISPLAY MODES
MONITOR
MODE NO.
SCREEN
RESOLUTION
HORIZONTAL
SYNC RATE
(kHz)
VERTICAL
SYNC RATE
(Hz)
VIDEO CLK
(MHz)
STANDAR
D
1 640X480 31.5 - 60.0 - 25.0 Defacto
2 640X480 37.86- 72.80- 31.5 VESA
3 640X480 37.5- 75.0- 31.5 VESA
4 720X400 31.5 - 70.0 + 28.0 Text
Defacto
5 800X600 37.8 + 60.0 + 40.0 VESA
6 800X600 48.07 + 72.18 + 50.0 VESA
7 800X600 46.87+ 75.0+ 49.5 VESA
8 1024X768 48.4 - 60.0 - 65.0 VESA
9 1024X768 56.47 - 70.07 - 75.0 VESA
10 1024X768 60.0 + 75.0 + 78.75 VESA
11 1280X1024 64.0 + 60.0 + 108.5 SXGA
12 1280X1024 80.0 + 75.0 + 135.0 SXGA