Connor-Winfield's OCXO based FTS375 is a GPS driven, mixed signal, phase lock loop that provides a 1PPS CMOS output and generates 10MHz CMOS and 10MHz SINE outputs from an intrinsically low jitter, voltage controlled crystal oscillator. The FTS375 can lock to a 10MHz reference derived from an on-board 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. 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 and can be used to access GPS timestamp information or verify the receiver has recovered from an alarm condition.
The FTS375’s flexibility in configuration, minimal cost, and minimal space design make it ideal for radio base stations, digital video broadcast equipment, 3G and WiMax base stations, synchronization source applications, and power, utilities, and public service applications.
