The Murata/Datel DVME-628 is a high-performance VMEbus Digital-to-Analog converter board engineered for demanding data acquisition and control applications. This 8-channel analog output module delivers 12-bit resolution with 6 microsecond settling time, making it ideal for process control, test instrumentation, and industrial systems requiring precise analog signal generation. The board integrates a high-speed DMA controller supporting sustained data transfer rates up to 35 M Bytes/sec between VMEbus and system memory, with individual DMA cycles capable of handling transfers up to 16 M bytes. Three selectable input coding schemes and five configurable analog output voltage ranges provide flexibility across diverse industrial environments.
Technical Specifications
• D/A Channels: 8
• Resolution: 12-bit
• Settling Time: 6 microseconds
• Input Coding Schemes: 3 types
• Analog Output Voltage Ranges: 5 selectable ranges
• Data Transfer: 16-bit and 32-bit transfers via DMA Controller
• DMA Controller sustained rate: 35 M Bytes/sec (VMEbus to cPCI memory)
• DMA slave mode rate: exceeding 12 M Bytes/sec (VMEbus into cPCI memory)
• DMA transfer length per cycle: up to 16 M bytes
• Optional shared memory: up to 8 MB via Dual Port RAM cards
• Power consumption: 3.5 A at 5 V
• Operating temperature: 0°C to 60°C
• Storage temperature: -40°C to 85°C
• Humidity: 0% to 90% non-condensing
– Key Features
• Full hardware compatibility with VMEbus Specifications (IEEE 1014C)
• Dual-mode DMA operation—Controller Mode and Slave Mode
• Parity checking on address, control, and data lines
• Interrupt pass-through capability from VMEbus to cPCI system
• Optional data checking on fiber-optic interfaces
– Typical Applications
• Process control systems
• Test instrumentation
• Industrial data-intensive environments
• High-speed analog signal generation
– Compatibility & Integration
The DVME-628 integrates directly into VMEbus backplanes and systems. Software and firmware support is available but not guaranteed.
