NEC LT80 User Manual - Page 42

Timing Chart

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Timing Chart Y/N Signal Resolution Y NTSC 640‫ן‬480 Y PAL 768‫ן‬576 Y SECAM 768‫ן‬576 Y VESA 640‫ן‬350 Y IBM 640‫ן‬400 Y VESA 640‫ן‬400 Y MAC 640‫ן‬400 Y VESA 640‫ן‬480 Y IBM 640‫ן‬480 Y MAC 640‫ן‬480 Y MAC 640‫ן‬480 Y MAC 640‫ן‬480 Y VESA 640‫ן‬480 Y VESA 640‫ן‬480 Y IBM 640‫ן‬480 Y VESA 640‫ן‬480 Y IBM 720‫ן‬350 Y IBM Y VESA Y IBM Y IBM Y VESA Y VESA Y VESA Y VESA Y VESA # MAC N VESA # VESA # VESA # IBM # MAC # VESA N VESA 720‫ן‬400 720‫ן‬400 720‫ן‬350 720‫ן‬400 800‫ן‬600 800‫ן‬600 800‫ן‬600 800‫ן‬600 800‫ן‬600 832‫ן‬624 1024‫ן‬768 1024‫ן‬768 1024‫ן‬768 1024‫ן‬768 1024‫ן‬768 1024‫ן‬768 1024‫ן‬768 Refresh Rate (Hz) 60 50 50 85.08 70 85.08 66 59.94 60 60 66.7 66.67 72.81 75 75 85.01 70.09 70.09 85.04 87.85 87.7 56.25 60.32 72.19 75 85.06 74.55 43interlace 60 70.07 72.03 74.93 75.03 85 F.H. (kHz) 15.734 15.625 15.625 37.86 31.47 37.86 35 31.47 31.47 31.47 34.97 35 37.86 37.5 39.375 43.269 31.469 31.4469 37.927 39.44 39.375 35.16 37.879 48.077 46.88 53.674 49.725 35.5 48.363 57.476 58.131 60.241 60.023 68.677 Dot Clk(MHz) 31.5 25.175 31.5 30.24 25.175 25.175 25.175 31.334 30.24 31.5 31.5 31.49 36 28.322 28.322 40 35.5 35.5 36 40 50 49.5 56.25 57.283 44.9 65 75 79 80 78.75 94.5 Incompatible signals are marked with on "N" and hatched. # 1024x768 and 832x624 images are compressed into 800x600. 81 SPECIFICATIONS 82

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Timing Chart
Y/N
Signal
Resolution
Refresh
F.H.
Dot
Rate (Hz)
(kHz)
Clk(MHz)
Y
NTSC
640
2
480
60
15.734
-
Y
PAL
768
2
576
50
15.625
-
Y
SECAM
768
2
576
50
15.625
-
Y
VESA
640
2
350
85.08
37.86
31.5
Y
IBM
640
2
400
70
31.47
25.175
Y
VESA
640
2
400
85.08
37.86
31.5
Y
MAC
640
2
400
66
35
30.24
Y
VESA
640
2
480
59.94
31.47
25.175
Y
IBM
640
2
480
60
31.47
25.175
Y
MAC
640
2
480
60
31.47
25.175
Y
MAC
640
2
480
66.7
34.97
31.334
Y
MAC
640
2
480
66.67
35
30.24
Y
VESA
640
2
480
72.81
37.86
31.5
Y
VESA
640
2
480
75
37.5
31.5
Y
IBM
640
2
480
75
39.375
31.49
Y
VESA
640
2
480
85.01
43.269
36
Y
IBM
720
2
350
70.09
31.469
28.322
81
Y
IBM
720
2
400
70.09
31.4469
28.322
Y
VESA
720
2
400
85.04
37.927
40
Y
IBM
720
2
350
87.85
39.44
35.5
Y
IBM
720
2
400
87.7
39.375
35.5
Y
VESA
800
2
600
56.25
35.16
36
Y
VESA
800
2
600
60.32
37.879
40
Y
VESA
800
2
600
72.19
48.077
50
Y
VESA
800
2
600
75
46.88
49.5
Y
VESA
800
2
600
85.06
53.674
56.25
#
MAC
832
2
624
74.55
49.725
57.283
N
VESA
1024
2
768
43interlace
35.5
44.9
#
VESA
1024
2
768
60
48.363
65
#
VESA
1024
2
768
70.07
57.476
75
#
IBM
1024
2
768
72.03
58.131
79
#
MAC
1024
2
768
74.93
60.241
80
#
VESA
1024
2
768
75.03
60.023
78.75
N
VESA
1024
2
768
85
68.677
94.5
Incompatible signals are marked with on "N" and hatched. # 1024x768 and 832x624 images
are compressed into 800x600.
SPECIFICATIONS
82