Sensoray 711 - Manual (Page 4)

Sensoray Model 711 Instruction Manual 5
1. Introduction
The 711 CompactPCI

frame grabber allows the capture of monochrome and color images from a
variety of analog video sources into computer memory (RAM). The 711 is designed for the
CompactPCI

bus. The software provided with the 711 is designed for the IBM PC and compatibles.
The 711 digitally locks to the incoming video signals providing a stable output regardless of the signal
source. The input’s 3:1 multiplexer allows the selection between two composite and one Y/C (S-Video)
analog video inputs, which makes it possible to connect up to three video sources to the frame grabber.
The 711 automatically detects the input video format (NTSC, PAL or SECAM) and separates luminance
(Y) and chrominance (C) components of the composite signal. The signal components 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 burst
mode. An on-board FIFO provides necessary buffering, minimizing the probability of image loss.
An 8-bit general purpose I/O port allows interfacing of the 711 to external hardware, which could be
used, for example, for triggered image acquisition.
2. System Requirements
The 711 frame grabber requires one CompactPCI

, 3U, 32-bit, 33 MHz slot. A 486 computer with at
least 8 Mbytes of RAM is required, though a Pentium with 16 Mbytes is recommended.
3. Specifications
Parameter Specification
Video sources NTSC, PAL, SECAM, RS-170, CCIR
Video inputs 2 analog composite video (BNC);
1 analog Y/C (S-Video) (DIN).
Output formats RGB (24 bits), Y8 (8 bits)
Output resolution (max), pixels 754x480 (NTSC, RS-170),
922x576 (PAL, SECAM, CCIR)
A/D resolution:
luminance channel
chrominance channel
8 bit
8 bit
Capture rate Real time:
30 fps (NTSC, RS-170),
25 fps (PAL, SECAM, CCIR)
General purpose I/O port 4 input and 4 output lines, TTL/CMOS,
DB15 female connector.
Bus requirements 1 CompactPCI

3U slot (33 MHz, 32-
bit)
Power consumption 200 mA (max) @ +5V
100 mA (max) @ +12V
Operating temperature 0
°
C to 70
°
C