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FTS125-COO GPS Disciplined Oscillator

Frequency and time standard module from Connor Winfield

GPS Disciplined OscillatorsConnor-Winfield announces the release of a new GPS disciplined oscillator, adding to its successful x125 family of GPS driven timing and frequency products.

The FTS125-COO frequency and time standard module is an OCXO based GPS driven, mixed signal phase lock loop, providing a 1PPS CMOS output from a Connor-Winfield GPS timing receiver and generating a 10MHz CMOS and 10MHz SINE output from an intrinsically low jitter voltage controlled crystal oscillator. The FTS125 can lock to a 10MHz reference derived from the onboard GPS receiver or to an external 10MHz or 1PPS reference. Alarms are provided to indicate loss-of-lock, holdover, and antenna fault.

The onboard GPS receiver requires an outdoor mounted GPS antenna for best stability and consistent performance. The mode control inputs are used to manually switch between references and/or holdover. The user application should monitor the alarm outputs and manually switch modes as needed. Serial I/O lines provide access to the NMEA messages from the GPS receiver. The serial I/O lines can be used to access GPS timestamp information or to verify that the receiver has recovered from an alarm condition. The reset is used to reset the GPS receiver if needed.

Features
  • Phase locked 10.0MHz output
  • 3 selectable references: GPS, external 10MHz, or external 1PPS
  • Meets ITU-T G.811 wander generation mask
  • Meets ETSI-PRC wander generation mask (with OCXO reference)
  • 3 alarm outputs: loss-of-lock, holdover, and antenna fault
  • Serial input and output ports (GPS receiver)
  • Master reset
  • +3.3V power supply
  • Commercial temperature (0-70°C)
  • Holdover
  • 1PPS output
  • MCX GPS antenna connection
  • Fixed position unit

Digi-Key P/N Manufacturer P/N Description Datasheet
CW684-ND FTS125-COO-010.0M GPS BASED TIMING MODULE (OCXO)
CW685-ND FTS125-COO-010.0M EVAL KIT GPS TIMING MODULE EVAL BOARD