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Initial set signals
Initial set signals
Back porch (B)
Data
H. Sync.
Sync (A)
Signal
(A)
TEXT
2.0
VGA (60Hz)
3.8
VGA (72Hz)
1.3
VGA (75Hz)
2.0
VGA (85Hz)
1.6
SVGA (56Hz)
2.0
SVGA (60Hz)
3.2
SVGA (72Hz)
2.4
SVGA (75Hz)
1.6
SVGA (85Hz)
1.1
Mac 16" mode
1.1
XGA (60Hz)
2.1
XGA (70Hz)
1.8
XGA (75Hz)
1.2
XGA (85Hz)
1.0
1152 x 864
1.2
(75Hz)
1280 x 960
1.0
(60Hz)
SXGA (60Hz)
1.0
SXGA (75Hz)
1.1
SXGA (85Hz)
1.0
UXGA (60Hz)
1.2
W-XGA (60Hz)
1.7
1280 x 800
1.6
(60Hz)
2
Front porch (D)
Active time (C)
3.0
20.3
1.9
25.4
4.1
20.3
3.8
20.3
2.2
17.8
3.6
22.2
2.2
20.0
1.3
16.0
3.2
16.2
2.7
14.2
3.9
14.5
2.5
15.8
1.9
13.7
2.2
13.0
2.2
10.8
2.4
10.7
2.9
11.9
2.3
11.9
1.8
9.5
1.4
8.1
1.9
9.9
2.5
16.0
2.4
15.3
Back porch (b)
Data
V. Sync.
Sync (a)
Signal
1.0
TEXT
0.6
VGA (60Hz)
0.8
VGA (72Hz)
0.5
VGA (75Hz)
1.6
VGA (85Hz)
0.7
SVGA (56Hz)
1.0
SVGA (60Hz)
1.1
SVGA (72Hz)
0.3
SVGA (75Hz)
0.6
SVGA (85Hz)
0.6
Mac 16" mode
0.4
XGA (60Hz)
0.3
XGA (70Hz)
0.2
XGA (75Hz)
0.5
XGA (85Hz)
1152 x 864
0.6
(75Hz)
1280 x 960
0.9
(60Hz)
0.4
SXGA(60Hz)
0.1
SXGA (75Hz)
0.4
SXGA (85Hz)
0.4
UXGA (60Hz)
0.8
W-XGA (60Hz)
1280 x 800
0.8
(60Hz)
Front porch (d)
Active time (c)
Vertical signal timing (lines)
(a)
(c)
3
42
400
2
33
480
3
28
480
3
16
480
3
25
480
2
22
600
4
23
600
6
23
600
3
21
600
3
27
600
3
39
624
6
29
768
6
29
768
3
28
768
3
36
768
3
32
864
3
36
960
3
38
1024
3
38
1024
3
44
1024
3
46
1200
3
23
768
3
24
800
(d)
1
10
9
1
1
1
1
37
1
1
1
3
3
1
1
1
1
1
1
1
1
1
1
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Table des Matières
