114 Chapter 10: Matrox Meteor-II for Matrox 4Sight
Performance The video timing parameters supported by the Matrox
Meteor-II /Standard board are as follows:
Input channels
Matrox Meteor-II /Standard for PC/104-Plus can switch
between up to twelve independent composite or six Y/C video
sources.
You can only acquire data from one video source at a time. You
can use the MIL-Lite MdigChannel() command to switch
between video sources (or channels).
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 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 analog
monochrome video in RS-170/CCIR format, or composite
(CVBS) or component (Y/C) video in NTSC/PAL format to
digitized video. The decoder supports RGB 8:8:8 (24-bit),
RGB 5:6:5, YUV 4:2:2, and YUV 4:1:1 output pixel formats.
Note that YUV 4:2:2 output pixel formats are grabbed as YUYV.
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
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