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Matrox Meteor-II /Standard grab section 55
Performance The video timing parameters supported by the Matrox
Meteor-II /Standard board are as follows:
Input channels
Matrox Meteor-II /Standard for PCI and PC/104-Plus can
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-Plus is 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
CCIR 601 sampling
rates
Square pixel sampling
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