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參數(shù)資料
| 型號： | CH7012 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Chrontel CH7012 TV Output Device |
| 中文描述： | 昆泰CH7012電視輸出設(shè)備 |
| 文件頁數(shù)： | 6/42頁 |
| 文件大?。?/td> | 551K |
| 代理商： | CH7012 |
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CHRONTEL
CH7012A
6
201-0000-042 Rev. 1.1, 9/29/2000
Modes of Operation
The CH7012 is capable of being operated as a VGA to TV encoder. Descriptions of the encoder operating
modes, with a block diagram of the data flow within the device is shown below.
TV Output
In TV Output mode, multiplexed input data, sync and clock signals are input to the CH7012 from the graphics
controller’s digital output port. A P-OUT clock can be output as a frequency reference to the graphics
controller, which is recommended to ensure accurate frequency generation. Horizontal and vertical sync
signals are normally set to the CH7012 from the graphics controller, but can be output to the graphics
controller as an option. Data will be 2X multiplexed, and the XCLK clock signal can be 1X or 2X times the
pixel rate. The input data will be encoded into the selected video standard, and output from the video DAC’s.
The modes supported for TV output are shown in the table below, and a block diagram of the CH7012 is shown
on the following page.
1
These DVD modes operate with interlaced input, scan conversion and flicker filter are bypassed.
2
These DVD modes operate with non-interlaced input, scan conversion is not bypassed.
Table 2: TV Output Modes
Graphics
Active Aspect
Resolution
512x384
512x384
720x400
720x400
640x400
640x400
640x480
640x480
720x480
1
720x480
2
720x576
1
720x576
2
800x600
800x600
1024x768
1024x768
Ratio
4:3
4:3
4:3
4:3
8:5
8:5
4:3
4:3
4:3
4:3
4:3
4:3
4:3
4:3
4:3
4:3
Pixel Aspect
Ratio
1:1
1:1
1.35:1.00
1.35:1.00
1:1
1:1
1:1
1:1
9:8
9:8
15:12
15:12
1:1
1:1
1:1
1:1
TV Output
Standard
PAL
NTSC
PAL
NTSC
PAL
NTSC
PAL
NTSC
NTSC
NTSC
PAL
PAL
PAL
NTSC
PAL
NTSC
Scaling Ratios
5/4, 1/1
5/4, 1/1
5/4, 1/1
5/4, 1/1
5/4, 1/1
5/4, 1/1, 7/8
5/4, 1/1, 5/6
1/1, 7/8, 5/6
1/1
1/1, 7/8, 5/6
1/1
1/1, 5/6, 5/7
1/1, 5/6, 5/7
3/4, 7/10, 5/8
5/7, 5/8, 5/9
5/8, 5/9, 1/2
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| CH7012A | Chrontel CH7012 TV Output Device |
| CH7012A-T | Chrontel CH7012 TV Output Device |
| CH7202 | MPEG to TV Encoder with 8-bit Input |
| CH7203 | MPEG to TV Encoder with 16-bit Input |
| CH7203-V | MPEG to TV Encoder with 16-bit Input |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CH7012A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Chrontel CH7012 TV Output Device |
| CH7012A-T | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Chrontel CH7012 TV Output Device |
| CH7013A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Digital PC to TV Encoder |
| CH7013A-T | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Digital PC to TV Encoder |
| CH7013A-V | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Digital PC to TV Encoder |
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