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Acer Acer –LCD-B223W
7
4. Input / Output Signal Specifications
4.1 Video signals
Analog
RGB signal: 0.7Vp-p (Input impedance = 75 Ohm)
Sync: TTL level (Input impedance 1k Ohm)
Positive and negative sync of Separate Horizontal/Vertical Sync
Digital : TMDS Signal: (min) ±200mVpp@24Bit
4.2 Signal Timing
Through D-SUB/DVI connectors, this unit can support F
H
= 31.5~84 KHz, Fv=56~76Hz, with maximum
pixel clock 165MHz input signal and WSXGA+ output. Modes details as below:
VESA MODES
Horizontal Vertical
Mode Resolution Total
Nominal
Frequency
+/-0.5KHz
Sync
Polarity
Nominal
Frequency
+/-1Hz
Sync
Polarity
Nominal
Pixel Clock
(MHz)
640*480@60Hz 31.469 N 59.941 N 25.175
640*480@72Hz 37.861 N 72.809 N 31.500
VGA
640*480@75Hz 37.500 N 75.000 N 31.500
800*600@56Hz 35.156 P 56.250 P 36.000
800*600@60Hz 37.879 P 60.317 P 40.000
800*600@72Hz 48.077 P 72.188 P 50.000
SVGA
800*600@75Hz 46.875 P 75.000 P 49.500
1024*768@60Hz 48.363 N 60.004 N 65.000
1024*768@70Hz 56.476 N 70.069 N 75.000
XGA
1024*768@75Hz 60.023 P 75.029 P 78.750
1152*864@75Hz 67.500 P 75.000 P 108.000
1280*960@60Hz 60.000 P 60.000 P 108.000
1152*720@60Hz 44.859 N 59.972 P 66.750
1280*1024@60Hz 63.981 P 60.020 P 108.000
SXGA
1280*1024@75Hz 79.976 P 75.025 P 135.000
SXGA+
1400x1050@60Hz 65.317 N 59.978 N 121.75
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