Timing Chart - Samsung PN22N Series Service Manual

2-3 Timing Chart

This section of the service manual describes the timing that the computer industry recognizes as standard
for computer-generated video signals.
Mode
IBM
VGA2/70Hz
720 x 400
Timing
fH (kHz) 31.469
A µsec 31.778
B µsec 3.813
C µsec 1.907
D µsec 25.422
E µsec 0.636
fV (Hz) 70.087
O msec 14.268
P msec 0.064
Q msec 1.080
R msec 12.711
S msec 0.413
Clock
Freq. 28.322
(MHz)
Polarity
H.Sync Negative
V.Sync Positive
Remark Separate
Separate Sync
Horizontal
Video
C D
Sync Sync
B
A
A : Line time total
C : Back porch
E : Front porch
PN22N*
800/85 Hz
VGA3/60Hz
640 x 480 800 x 600
53.674
31.469
18.631
31.778
1.138
3.813
1.907 2.702
14.222
25.422
0.569
0.636
85.061
59.940
11.756
16.683
0.064 0.056
0.503
1.048
11.179
15.253
0.019
0.318
56.250
25.175
Positive
Negative
Positive
Negative
Separate
Separate
Vertical
Video
E Q R
Sync Sync
P P
O O
B : Horizontal sync width
D : Active time
Table 2-1. Timing Chart
1152/75 Hz
1024/85 Hz
1152 x 864
1024 x 768
68.677
67.500
14.815 14.561
1.185 1.016
2.370 2.201
10.836
10.667
0.508
0.593
75.000 84.997
13.333 11.765
0.044 0.044
0.524
0.474
11.183
12.800
0.015 0.015
108.000 94.500
Positive
Positive
Positive
Positive
Separate Separate
Vertical
Green
Horizontal
B
S
O : Frame time total
Q : Back porch
S : Front porch
2 Product Specifications
VESA
1280/85 Hz
1920/75 Hz
1280 x 1024
1920 x 1024
91.146
112.730
8.871 10.971
0.699 1.016
1.210 1.422
6.452 8.127
0.406
0.511
85.024
75.000
13.333 11.761
0.026 0.033
0.523 0.483
11.235
12.774
0.011
0.009
157.500
297.590
Negative Positive
Positive
Positive
Separate
Separate
Sync-on-Green
P
R
Q
O
P : Vertical sync width
R : Active time
1600/85 Hz
1600 x 1200
106.250
9.412
0.837
1.325
6.972
0.279
85.000
11.765
0.028
0.433
11.294
0.009
229.50
Positive
Positive
Separate
S
2-3