The GX3571 is a programmable video generator card which allows the user to generate video test images for displays or video processors. The module when combined with the GX3500 is called GX5671. The board provides a cost effective and flexible test solution for video product test applications. VGA, Composite, and S-video outputs are supported as well NTSC and PAL formats.
The GX3771 supports a 640 x 480 format with standard frame rates of 60 Hz or 50 Hz. An on-board RAM (512Kb x 32) allows customers to create and load their own specific video test patterns. Up to 4 frames of video can be supported. Three 10-bit D to A converters support up to 10 bits of RGB color generation. The board supports VGA, Composite and S-video outputs via an external interface module which interfaces to the PXI card using a SCSI3 connector. Two on-board clock generators (14.318 MHz and 17.734 MHz) support the NTSC and PAL video standards respectively.
Use the GXFPGA driver GxFpga3751xxx functions to program the GX3571. The functions are described in details in Function Reference section. Some of the functions are also available from the software front panel.
Video Output Characteristics |
|
Video Output formats |
VGA (680 x 480). Composite video. S-video. |
Video Frame Memory |
512 Kb x 32. |
Video Formats |
NTSC & PAL. |
VGA Output |
R,G,B, H sync, V sync. R,G,B signal level: 0 – 0.7 volts, 75-ohm source / load termination. H sync & V sync: “1” is > 2 volts, “0” < 0.8 volts. |
Composite Video |
Output level: 2.5 V p-p (NTSC & PAL). |
S – Video
|
Chrominance level: 1.8 V p-p (NTSC & PAL). Luminance level: 1.8 V p-p (NTSC & PAL). |
I/O Connectors |
(2) SCSI III, VHDCI type, 68 pin female. Video out (interfaces to breakout module). Reserved for future expansion. |