Symmetricom bc635PMC overview
Datum bc635PMC PCI Mezzanine Time & Frequency Processor Symmetricom’s bc635/637PMC receiver module provides precision time and frequency reference to the host...
Manufactured bySymmetricom
Part number or familybc635PMC
Product groupPMC Time & Frequency Processor
Product details
Manufactured bySymmetricom
Product groupPMC Time & Frequency Processor
DescriptionDatum bc635PMC PCI Mezzanine Time & Frequency Processor
OverviewSymmetricom’s bc635/637PMC receiver module provides precision time and frequency reference to the host computer system and peripheral data acquisition systems. Time is acquired from either the GPS satellites using a supplied antenna/receiver (bc637PMC only) or from time code signals, typically IRIG B. Integration of the module is facilitated with optional drivers for Windows NT/2000/XP, Linux, Solaris, or VxWorks. Central to the operation of the module is a disciplined 10 MHz oscillator and 100 nanosecond clock. Current time (days to 100 nanoseconds) can be accessed across the PCI bus with zero latency, which allows for very high speed time requests. The oscillator is rate-matched (disciplined) to the input time source and drives the precision 10 MHz frequency output and time code generator circuitry. If time is lost, the module will continue to maintain time (flywheel).Both time code generation and translation are supported. The generator supplies IRIG B time code output that is synchronized to the input time source. The translator decodes IRIG A, IRIG B or NASA 36.An Event Time Capture feature provides a means of latching time for an event input. The module can also be programmed to generate a periodic pulse rate as well as to generate a single time strobe at a pre-determined time.
Key FeaturesPCI Local Bus Operation GPS or Time Code Inputs Time Code Outputs Pulse Rate Outputs Frequency Outputs (1, 5, or 10 MHz) External Event Capture Register/Interrupt Programmable Periodic Output/Interrupt Programmable Time Strobe Output/Interrupt 10 mm Stacking Height Micro-Miniature or SMB Output Connectors Fully Supports “BUSMODE” Enabling IEEE 1344 Compliant IRIG B Time Code
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PMC Time & Frequency Processor
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