Connor-Winfield FTS125, FTS250 and FTS375

Connor-Winfield's line of GPS disciplined oscillators.

General Description

Disciplined Reference and Synchronous Clock Generators

The FTS125, FTS250 and FTS375 frequency and time standard modules are GPS driven, mixed-signal phase lock loops providing 1PPS CMOS output from a Connor-Winfield GPS timing receiver and generating a 10 MHz CMOS and a 10 MHz SINE output from an intrinsically low jitter voltage controlled crystal oscillator. These modules can lock to a 10 MHz reference derived from the on-board GPS receiver or an external 10 MHz reference or to an external 1 PPS reference. Alarms are provided to indicate Loss-of-Lock, Holdover, and Antenna Fault. The on-board GPS recever 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 alarm outputs and manually switch modes as needed.

Serial I/O lines provide access to the NMEA messages from the GPS receiver (referenced in the Connor-Winfield's Ti125 User Manual. Contact sales for a copy). 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.

View 125 Series Comparison

 

FTS125 Featuresfts125

  • Phase locked to 10.0 MHz output
  • 1 PPS output
  • 3 selectable references: GPS, External 10 MHz or External 1 PPS
  • Serial input and output ports (GPS receiver)
  • Master reset
  • +3.3 volt power supply
  • Commercial Temperature: 0° to 70°C
  • Meets ITU-T G.811 Wander Generation Mask
  • Meets ETSI-PRC Wander Generation Mask (with OCXO reference)
  • MCX GPS antenna connection
  • Fixed position unit

FTS250 Featuresfts250

  • Phase Locked 10.0 MHz output
  • 1 PPS output
  • 3 selectable references: GPS, External 10 MHz and External 1 PPS
  • Serial input and output ports (GPS receiver)
  • Master reset
  • +3.3 Volt power supply
  • Temperature range: -40° to 85°C
  • Meets ITU-T G.811 Wander Generation Mask
  • SMA Bulkhead GPS antenna connection
  • Physical Dimensions: 2.8"x1.725"x0.368" (71mm x 43.82mm x 9.34mm)
  • Fixed position unit

FTS 375 Featuresfts375

  • Phase locked 10.0 MHz output
  • 1 PPS output
  • 3 selectable references: GPS, External 10MHz or External 1PPS
  • Holdover
  • Three alarm outputs: Loss-of-Lock, Holdover and Antenna Fault)
  • Serial input and output ports (GPS receiver)
  • Master reset
  • +3.3 Volt power supply
  • Commercial Temperature: 0°to 70°C
  • Mechanical Dimensions: 3.937"x1.969"x0.7.0" (100mm x 50mm x 17.98mm)
  • Fixed position unit