VGA信号的定时设计使用数据.docx
《VGA信号的定时设计使用数据.docx》由会员分享，可在线阅读，更多相关《VGA信号的定时设计使用数据.docx（371页珍藏版）》请在冰点文库上搜索。
VGA信号的定时设计使用数据
VGA信号的定时
640 x 350
VGA 640x350@70 Hz （pixel clock 25.175 MHz）
General timing
Screen refresh rate
70 Hz
Vertical refresh
31.46875 kHz
Pixel freq.
25.175 MHz
Horizontal timing （line） Polarity of horizontal sync pulse is positive.
Scanline part
Pixels
Time [µs]
Visible area
640
25.422045680238
Front porch
16
0.63555114200596
Sync pulse
96
3.8133068520357
Back porch
48
1.9066534260179
Whole line
800
31.777557100298
Vertical timing （frame） Polarity of vertical sync pulse is negative.
Frame part
Lines
Time [ms]
Visible area
350
11.122144985104
Front porch
37
1.175********1
Sync pulse
2
0.063555114200596
Back porch
60
1.9066534260179
Whole frame
449
14.268123138034
VESA 640x350@85 Hz （pixel clock 31.5 MHz）
General timing
Screen refresh rate
85 Hz
Vertical refresh
37.860576923077 kHz
Pixel freq.
31.5 MHz
Horizontal timing （line） Polarity of horizontal sync pulse is positive.
Scanline part
Pixels
Time [µs]
Visible area
640
20.31746031746
Front porch
32
1.015873015873
Sync pulse
64
.0317********
Back porch
96
.0476********
Whole line
832
26.412698412698
Vertical timing （frame） Polarity of vertical sync pulse is negative.
Frame part
Lines
Time [ms]
Visible area
350
9.2444444444444
Front porch
32
0.84520634920635
Sync pulse
3
.0792********
Back porch
60
1.5847619047619
Whole frame
445
11.753650793651
640 x 400
VGA 640x400@70 Hz （pixel clock 25.175 MHz）
General timing
Screen refresh rate
70 Hz
Vertical refresh
31.46875 kHz
Pixel freq.
25.175 MHz
Horizontal timing （line） Polarity of horizontal sync pulse is negative.
Scanline part
Pixels
Time [µs]
Visible area
640
25.422045680238
Front porch
16
0.63555114200596
Sync pulse
96
3.8133068520357
Back porch
48
1.9066534260179
Whole line
800
31.777557100298
Vertical timing （frame） Polarity of vertical sync pulse is positive.
Frame part
Lines
Time [ms]
Visible area
400
12.711022840119
Front porch
12
0.38133068520357
Sync pulse
2
0.063555114200596
Back porch
35
1.1122144985104
Whole frame
449
14.268123138034
VESA 640x400@85 Hz （pixel clock 31.5 MHz）
General timing
Screen refresh rate
85 Hz
Vertical refresh
37.860576923077 kHz
Pixel freq.
31.5 MHz
Horizontal timing （line） Polarity of horizontal sync pulse is negative.
Scanline part
Pixels
Time [µs]
Visible area
640
20.31746031746
Front porch
32
1.015873015873
Sync pulse
64
.0317********
Back porch
96
.0476********
Whole line
832
26.412698412698
Vertical timing （frame） Polarity of vertical sync pulse is positive.
Frame part
Lines
Time [ms]
Visible area
400
10.565079365079
Front porch
1
0.026412698412698
Sync pulse
3
.0792********
Back porch
41
1.0829206349206
Whole frame
445
11.753650793651
640 x 480
VGA 640x480@60 Hz Industry standard （pixel clock 25.175 MHz）
General timing
Screen refresh rate
60 Hz
Vertical refresh
31.46875 kHz
Pixel freq.
25.175 MHz
Horizontal timing （line） Polarity of horizontal sync pulse is negative.
Scanline part
Pixels
Time [µs]
Visible area
640
25.422045680238
Front porch
16
0.63555114200596
Sync pulse
96
3.8133068520357
Back porch
48
1.9066534260179
Whole line
800
31.777557100298
Vertical timing （frame） Polarity of vertical sync pulse is negative.
Frame part
Lines
Time [ms]
Visible area
480
15.253227408143
Front porch
10
0.31777557100298
Sync pulse
2
0.063555114200596
Back porch
33
1.0486593843098
Whole frame
525
16.683217477656
VGA 640x480@73 Hz （pixel clock 31.5 MHz）
General timing
Screen refresh rate
73 Hz
Vertical refresh
37.860576923077 kHz
Pixel freq.
31.5 MHz
Horizontal timing （line） Polarity of horizontal sync pulse is negative.
Scanline part
Pixels
Time [µs]
Visible area
640
20.31746031746
Front porch
24
0.76190476190476
Sync pulse
40
1.2698412698413
Back porch
128
4.0634920634921
Whole line
832
26.412698412698
Vertical timing （frame） Polarity of vertical sync pulse is negative.
Frame part
Lines
Time [ms]
Visible area
480
12.678095238095
Front porch
9
0.23771428571429
Sync pulse
2
0.052825396825397
Back porch
29
0.76596825396825
Whole frame
520
13.734603174603
VESA 640x480@75 Hz （pixel clock 31.5 MHz）
General timing
Screen refresh rate
75 Hz
Vertical refresh
37.5 kHz
Pixel freq.
31.5 MHz
Horizontal timing （line） Polarity of horizontal sync pulse is negative.
Scanline part
Pixels
Time [µs]
Visible area
640
20.31746031746
Front porch
16
0.50793650793651
Sync pulse
64
.0317********
Back porch
120
3.8095238095238
Whole line
840
26.666666666667
Vertical timing （frame） Polarity of vertical sync pulse is negative.
Frame part
Lines
Time [ms]
Visible area
480
12.8
Front porch
1
0.026666666666667
Sync pulse
3
0.08
Back porch
16
0.42666666666667
Whole frame
500
13.333333333333
SXGA （Mode 101） 640x480@85 Hz （pixel clock 36.0 MHz）
General timing
Screen refresh rate
85 Hz
Vertical refresh
43.269230769231 kHz
Pixel freq.
36.0 MHz
Horizontal timing （line） Polarity of horizontal sync pulse is negative.
Scanline part
Pixels
Time [µs]
Visible area
640
17.777777777778
Front porch
56
1.5555555555556
Sync pulse
56
1.5555555555556
Back porch
80
2.2222222222222
Whole line
832
23.111111111111
Vertical timing （frame） Polarity of vertical sync pulse is negative.
Frame part
Lines
Time [ms]
Visible area
480
.0933********
Front porch
1
.023*********
Sync pulse
3
0.069333333333333
Back porch
25
0.57777777777778
Whole frame
509
11.763555555556
VESA 640x480@100 Hz （pixel clock 43.16 MHz）
General timing
Screen refresh rate
100 Hz
Vertical refresh
50.896226415094 kHz
Pixel freq.
43.16 MHz
Horizontal timing （line） Polarity of horizontal sync pulse is negative.
Scanline part
Pixels
Time [µs]
Visible area
640
14.828544949027
Front porch
40
0.92678405931418
Sync pulse
64
1.4828544949027
Back porch
104
2.4096385542169
Whole line
848
19.647822057461
Vertical timing （frame） Polarity of vertical sync pulse is positive.
Frame part
Lines
Time [ms]
Visible area
480
9.4309545875811
Front porch
1
0.019647822057461
Sync pulse
3
0.058943466172382
Back porch
25
0.49119555143652
Whole frame
509
10.000741427247
720 x 400
VESA 720x400@85 Hz （pixel clock 35.5 MHz）
General timing
Screen refresh rate
85 Hz
Vertical refresh
37.92735042735 kHz
Pixel freq.
35.5 MHz
Horizontal timing （line） Polarity of horizontal sync pulse is negative.
Scanline part
Pixels
Time [µs]
Visible area
720
20.281690140845
Front porch
36
1.0140845070423
Sync pulse
72
.028*********
Back porch
108
3.0422535211268
Whole line
936
26.366197183099
Vertical timing （frame） Polarity of vertical sync pulse is positive.
Frame part
Lines
Time [ms]
Visible area
400
10.546478873239
Front porch
1
0.026366197183099
Sync pulse
3
.0790********
Back porch
42
1.1073802816901
Whole frame
446
11.759323943662
768 x 576
VESA 768x576@60 Hz （pixel clock 34.96 MHz）
General timing
Screen refresh rate
60 Hz
Vertical refresh
35.819672131148 kHz
Pixel freq.
34.96 MHz
Horizontal timing （line） Polarity of horizontal sync pulse is negative.
Scanline part
Pixels
Time [µs]
Visible area
768
21.967963386728
Front porch
24
0.68649885583524
Sync pulse
80
2.2883295194508
Back porch
104
2.974828375286
Whole line
976
27.9176201373
Vertical timing （frame） Polarity of vertical sync pulse is positive.
Frame part
Lines
Time [ms]
Visible area
576
16.080549199085
Front porch
1
.027*********
Sync pulse
3
.0837********
Back porch
17
0.4745995423341
Whole frame
597
16.666819221968
VESA 768x576@72 Hz （pixel clock 42.93 MHz）
General timing
Screen refresh rate
72 Hz
Vertical refresh
43.276209677419 kHz
Pixel freq.
42.93 MHz
Horizontal timing （line） Polarity of horizontal sync pulse is negative.
Scanline part
Pixels
Time [µs]
Visible area
768
17.889587700908
Front porch
32
0.74539948753785
Sync pulse
80
1.8634987188446
Back porch
112
2.6088982063825
Whole line
992
23.107384113673
Vertical timing （frame） Polarity of vertical sync pulse is positive.
Frame part
Lines
Time [ms]
Visible area
576
13.309853249476
Front porch
1
.023*********
Sync pulse
3
0.06932215234102
Back porch
21
0.48525506638714
Whole frame
601
13.887537852318
VESA 768x576@75 Hz （pixel clock 45.51 MHz）
General timing
Screen refresh rate
75 Hz
Vertical refresh
45.14880952381 kHz
Pixel freq.
45.51 MHz
Horizontal timing （line） Polarity of horizontal sync pulse is negative.
Scanline part
Pixels
Time [µs]
Visible area
768
16.875411997363
Front porch
40
0.878927708196
Sync pulse
80
1.757855416392
Back porch
120
2.636783124588
Whole line
1008
22.148978246539
Vertical timing （frame） Polarity of vertical sync pulse is positive.
Frame part
Lines
Time [ms]
Visible area
576
12.757811470007
Front porch
1
.022*********
Sync pulse
3
0.066446934739618
Back porch
22
0.48727752142386
Whole frame
602
13.333684904417
VESA 768x576@85 Hz （pixel clock 51.84 MHz）
General timing
Screen refresh rate
85 Hz
Vertical refresh
51.428571428571 kHz
Pixel freq.
51.84 MHz
Horizontal timing （line） Polarity of horizontal sync pulse is negative.
Scanline part
Pixels
Time [µs]
Visible area
768
14.814814814815
Front porch
40
0.7716049382716
Sync pulse
80
1.5432098765432
Back porch
120
2.3148148148148
Whole line
1008
19.444444444444
Vertical timing （frame） Polarity of vertical sync pulse is positive.
Frame part
Lines
Ti
升级会员 