| | | | | Matrox Meteor-II /Standard grab section 55 |
| | | The video timing parameters supported by the Matrox |
Performance |
| | | Meteor-II /Standard board are as follows: | | |
| | | | | | | |
| | | | CCIR 601 sampling | Square pixel sampling |
| | | | | rates | | rates |
| | | | | | | | | |
| | | | NTSC | | PAL | NTSC | | PAL |
| | | | | | | | |
| Field rate (Hz) | | 60 | | 50 | 60 | | 50 |
| | | | | | | | |
| Pixel/line (Pixels) | | 858 | | 864 | 780 | | 944 |
| | | | | | | |
| Active pixel/line (Pixels) | 720 | | 720 | 640 | | 768 |
| | | | | | | |
| Active lines/frame (Lines) | 480 | | 580 | 480 | | 580 |
| | | | | | | | |
| Pixel rate (MHz) | | 13.5 | | 13.5 | 12.27 | | 14.75 |
| | | | | | | |
| ADC sampling rate (MHz) | 27 | | 27 | 24.54 | | 29.50 |
| | | | | | | | |
| Line rate (KHz) | | 15.750 | | 15.625 | 15.750 | | 15.625 |
| | | | | | | | | |
Input channels
Matrox Meteor-II /Standard for PCI and PC/104-Pluscan switch between up to twelve independent composite or six Y/C video sources. Matrox Meteor-II /Standard for CompactPCI can switch between seven independent composite sources, or up to three Y/C video sources.
You can only acquire data from one channel at a time. Channels can be selected with the MIL-Lite command, MdigChannel().
Low-pass filter
The input low-pass filtering stage is used to limit high frequency noise and aliasing effects at the input of the decoder. The filter used on Matrox Meteor-II /Standard for PCI and CompactPCI is a 4th order Butterworth filter with a cutoff frequency of 8 MHZ. The filter used on Matrox Meteor-II /Standard for PC/104-Plusis a single-order filter with a cutoff frequency of 6 MHz.
Video decoder
A multi-standard video decoder is used to convert NTSC and PAL analog video signals that are in composite (CVBS), or (Y/C) formats to digitized component video. The decoder supports
