bc635PCI-V2 Timing Module

The Microchip bc635PCI-V2 timing module provides unparalleled precise time and frequency to the host computer and peripheral data acquisition systems.

Time is typically acquired from time code signals such as IRIG B.

Central to the operation of the module is a disciplined TCXO 10 MHz oscillator that can provide the timing module’s 100-nanosecond clock.

Current time (days to 100 ns) can be accessed across the PCI bus with no PCI bus wait states, which allows for high-speed time requests.

The selected on-board or off-board 10 MHz oscillator drives the module’s frequency and time code generator circuitry.

If the input reference is lost, the module will continue to maintain time (flywheel) based on the selected 10 MHz oscillator’s drift rate.

If power is lost, a battery-backed Real-Time Clock (RTC) is available to maintain time.

• 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
• 100 ns clock resolution for time requests
• Programmable << 1 PPS to 100 MPPS DDS rate synthesizer output/interrupt
• 1, 5 or 10 MPPS rate generator output
• 1 PPS and 10 MHz inputs
• CE RoHS compliant
• Linux and Windows software drivers/SDKs included