The bc637PCI timing module from our partners Microchip provides precise time and frequency to the host computer and peripheral data acquisition systems.

Precise time is acquired from the GPS satellite system or from time code signals. GPS synchronization provides 170 ns RMS accurate time to UTC (USNO) and enables the bc637PCI-V2 to be an ideal master clock for precisely synchronizing multiple computers to UTC.

Reading the Precise Time

The bc637PCI provides accurate time on request and fast response to host applications. This request is made using the included SDK software functions.

A Multitude of Time Codes

The bc637PCI has the widest time code input and output support available in any bus level timing card. Support is available for 30 different time codes.

Measure Internal Events or External

The bc637PCI allows you to measure the exact time up to the occurrence of three external events. Bus interrupts instantly notify the CPU that the measurements are made and are waiting.

Flexible Rate Generation

The DDS on the bc637PCI can be programmed to generate rates up to 100MPPS or as little as once every 115 days.

  • GPS synchronized with 170 ns RMS accuracy to UTC
  • IRIG A, B, G, E, IEEE 1344, NASA 36, XR3, and 2137 time code inputs and outputs
  • Simultaneous AM and DCLS time code inputs and outputs
  • Programmable <<1PPS to 100MPPS DDS rate synthesizer output/interrupt
  • 1PPS and 10 MHz inputs
  • Battery backed real time clock (RTC)
  • Linux, Solaris, and Windows software drivers/SDKs included