Connor-Winfield's TCXO based FTS250 is a GPS driven, mixed signal, phase lock loop module that provides a 1PPS CMOS output and generates 10MHz CMOS and 10MHz SINE outputs from an intrinsically low jitter, voltage controlled crystal oscillator. The FTS250 can lock to a 10MHz reference derived from the on-board GPS receiver or 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 configuration flexibility of the FTS250 makes it ideal for use in remote transmitters, radio base stations, digital video broadcast equipment, any 3G base station application, WiMax base stations, military radio, and general timing and synchronization applications.
