The National Instruments PCI-1409 is a high-accuracy monochrome image acquisition module for PCI, PXI, and CompactPCI chassis. It digitizes analog video signals from standard and non-standard camera sources with a factory-calibrated 10-bit ADC, delivering up to 60 dB dynamic range and 1,024 gray scales. The module supports four simultaneous video inputs, accommodates pixel clocks from 2 MHz to 40 MHz, and includes an anti-chrominance filter for NTSC and PAL signals. With 16 MB onboard SDRAM, three independent DMA controllers, and scatter-gather capability, the PCI-1409 sustains continuous image transfers at up to 132 MB/s over the PCI bus. Programmable gain and offset circuits extend input signal range, while integrated genlock circuitry locks to standard video formats or external synchronization signals. Four digital I/O lines and four digital outputs enable camera control and external triggering. TTL-compatible trigger inputs and a 20 ns minimum detectable pulse width support precise timing requirements.
Technical Specifications
• 10-bit ADC with 8-bit or 10-bit digitization modes
• Dynamic range: up to 60 dB (1,024 gray scales)
• Onboard memory: 16 MB SDRAM
• Pixel clock range: 2 MHz to 40 MHz
• Supported video standards: RS-170/NTSC, CCIR/PAL, VGA, progressive scan
• Video inputs: up to 4 sources
• PCI data transfer: 132 MB/s maximum (bus master mode)
• Minimum detectable pulse width: 20 ns
• Three independent DMA controllers with scatter-gather support
– Key Features
• Factory-calibrated gain circuit for improved measurement accuracy and board consistency
• Programmable gain and offset for extended input signal range
• Anti-chrominance filter for NTSC and PAL color-coded signals
• Genlock circuit locks to RS-170/NTSC, CCIR/PAL, progressive scan, VGA, or external sync signals
• 75 Ω BNC or 68-pin VHDCI connectors for video/sync signals
• TTL-compatible trigger inputs with 4 external digital I/O and 4 digital outputs
• RTSI bus synchronization with other NI DAQ, motion control, and IMAQ devices
– Typical Applications
• Machine vision and automated inspection
• Scientific imaging with standard and line-scan cameras
• Industrial image processing requiring high-precision digitization
– Compatibility & Integration
Accepts monochrome RS-170/CCIR standard cameras, progressive scan cameras, variable pixel clock cameras, and analog line-scan cameras. PCI interface implemented with NI custom ASIC (PCI MITE).
