Description

Sensoray Model 311 - PC/104+ Frame Grabber Simple Type: CPU Board The 311 PC104+ frame grabber allows the capture of monochrome and color images from a variety of analog video sources into computer memory (RAM). The 311 is designed to work with standard TV signal sources, compatible to the following video standards: color: NTSC-M, NTSC-Japan, PAL-B, PAL-D, PAL-G, PAL-H, PAL-I, PAL-M, PAL-N, SECAM monochrome: CCIR, RS-170. The 311 digitally locks to the incoming video signals providing a stable output regardless of the signal source. The input’s 4:1 multiplexer allows the selection between four composite or three composite and one Y/C (S-Video) analog video inputs, which makes it possible to connect up to four video sources to the frame grabber. The signal components (luminance and chrominance) are digitized with two separate 8-bit A/D converters. Low-pass filtering and double over-sampling of the input signal provide precise digitization with no aliasing artifacts. The digital signal is then scaled and/or cropped to the desired dimensions, if necessary. The scaled image is transferred to the host RAM using the PCI bus mastering mode, which requires minimum CPU attention. An onboard FIFO provides necessary buffering, minimizing the probability of image loss. Download the datasheet (PDF)