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参数资料
| 型号： | CH7003B |
| 厂商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Digital PC to TV Encoder |
| 中文描述： | 数码电脑电视编码器 |
| 文件页数： | 13/50页 |
| 文件大小： | 334K |
| 代理商： | CH7003B |
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CHRONTEL
CH7003B
201-0000-023 Rev 4.1, 8/2/99
13
Display Modes
(continued)
output to either NTSC or PAL television formats. The CH7003 provides interpolated scaling with selectable factors
of 5:4, 1:1, 7:8, 5:6, 3:4 and 7:10 in order to support adjustable overscan or underscan operation when displayed on
a TV. This combination of factors results in a matrix of useful operating modes which are listed in detail in
Table 11
.
(1) Note:
Percent underscan is a calculated value based on average viewable lines on each TV format, assuming an average TV ovescan
of 10%. (Negative values) indicate modes which are operating in underscan.
For NTSC: 480 active lines - 10% (overscan) = 432 viewable lines (average)
For PAL: 576 active lines - 10% (overscan) = 518 viewable lines (average)
The inclusion of multiple levels of scaling for each resolution have been created to enable optimal use of the
CH7003 for different application needs. In general, underscan (modes where percent overscan is negative) provides
an image that is viewable in its entirety on screen; it should be used as the default for most applications (e.g.,
viewing text screens, operating games, running productivity applications, working within Windows). Overscanning
provides an image that extends past the edges of the TV screen, exactly like normal television programs and movies
appear on TV, and is only recommended for viewing movies or video clips coming from the computer.
Anti-flicker Filter
The CH7003 integrates an advanced 4-line (3-line for 1:1 modes) vertical deflickering filter circuit to help eliminate
the flicker associated with interlaced displays. When operating in scaled display modes, this flicker circuit provides
an adaptive filter algorithm for implementing flicker reduction with selections of high or low flicker content. When
operating in scale factors other than (1:1) display modes, it provides a selection of high or low flicker content. When
operating in non-scaled (1:1) display modes, it provides a selection of four anti-flicker filter modes (non-filtering
Table 11. CH7003 Display Modes
TV Format
Standard
Input
(active)
Resolution
Scale
Factor
Active
TV Lines
Percent (1)
Overscan
Pixel
Clock
Horizontal
Total
Vertical
Total
NTSC
NTSC
NTSC
NTSC
NTSC
NTSC
NTSC
NTSC
NTSC
NTSC
NTSC
NTSC
NTSC
640x480
640x480
640x480
800x600
800x600
800x600
640x400
640x400
640x400
720x400
720x400
512x384
512x384
1:1
7:8
5:6
5:6
3:4
7:10
5:4
1:1
7:8
5:4
1:1
5:4
1:1
480
420
400
500
450
420
500
400
350
500
400
480
384
10%
(3%)
(8%)
16%
4%
(3%)
16%
(8%)
(19%)
16%
(8%)
10%
(11%)
24.671
28.196
30.210
39.273
43.636
47.832
21.147
26.434
30.210
23.790
29.455
20.140
24.671
784
784
800
1040
1040
1064
840
840
840
945
936
800
784
525
600
630
630
700
750
420
525
600
420
525
420
525
PAL
PAL
PAL
PAL
PAL
PAL
PAL
PAL
PAL
PAL
PAL
PAL
640x480
640x480
640x480
800x600
800x600
800x600
640x400
640x400
720x400
720x400
512x384
512x384
5:4
1:1
5:6
1:1
5:6
3:4
5:4
1:1
5:4
1:1
5:4
1:1
600
480
400
600
500
450
500
400
500
400
480
384
14%
(8%)
(29%)
14%
(4%)
(15%)
(4%)
(29%)
(4%)
(29%)
(8%)
(35%)
21.000
26.250
31.500
29.500
36.000
39.000
25.000
31.500
28.125
34.875
21.000
26.250
840
840
840
944
960
936
1000
1008
1125
1116
840
840
500
625
750
625
750
836
500
625
500
625
500
625
相关PDF资料 |
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| CH7003B-V | Digital PC to TV Encoder |
| CH7006C | MODULE |
| CH7006C-T | Circular Connector; Body Material:Aluminum; Series:PT06; Number of Contacts:18; Connector Shell Size:14; Connecting Termination:Crimp; Circular Shell Style:Straight Plug; Circular Contact Gender:Socket; Insert Arrangement:14-18 |
| CH7006C-V | Circular Connector; Body Material:Aluminum; Series:PT06; No. of Contacts:18; Connector Shell Size:14; Connecting Termination:Crimp; Circular Shell Style:Straight Plug; Circular Contact Gender:Socket; Insert Arrangement:14-18 |
| CH7013A | Digital PC to TV Encoder |
相关代理商/技术参数 |
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|---|---|
| CH7003B-T | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Digital PC to TV Encoder |
| CH7003B-V | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Digital PC to TV Encoder |
| CH7004C | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Digital PC to TV Encoder with Macrovision |
| CH7004C-T | 制造商:CHRONTEL 功能描述: |
| CH7004C-V | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Digital PC to TV Encoder with Macrovision |
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