 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
CH7012 Datasheet(PDF) 6 Page - List of Unclassifed Manufacturers |
|
||||||||||||||||||||||||||||||
CH7012 Datasheet(HTML) 6 Page - List of Unclassifed Manufacturers |
|
|
6 / 42 page  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 Resolution Active Aspect Ratio Pixel Aspect Ratio TV Output Standard Scaling Ratios 512x384 4:3 1:1 PAL 5/4, 1/1 512x384 4:3 1:1 NTSC 5/4, 1/1 720x400 4:3 1.35:1.00 PAL 5/4, 1/1 720x400 4:3 1.35:1.00 NTSC 5/4, 1/1 640x400 8:5 1:1 PAL 5/4, 1/1 640x400 8:5 1:1 NTSC 5/4, 1/1, 7/8 640x480 4:3 1:1 PAL 5/4, 1/1, 5/6 640x480 4:3 1:1 NTSC 1/1, 7/8, 5/6 720x4801 4:3 9:8 NTSC 1/1 720x4802 4:3 9:8 NTSC 1/1, 7/8, 5/6 720x576 1 4:3 15:12 PAL 1/1 720x576 2 4:3 15:12 PAL 1/1, 5/6, 5/7 800x600 4:3 1:1 PAL 1/1, 5/6, 5/7 800x600 4:3 1:1 NTSC 3/4, 7/10, 5/8 1024x768 4:3 1:1 PAL 5/7, 5/8, 5/9 1024x768 4:3 1:1 NTSC 5/8, 5/9, 1/2 |
Similar Part No. - CH7012 |
|
Similar Description - CH7012 |
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.NET |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
