GPS OCXO time and frequency module is fully integrated

March 25, 2013 // By Jean-Pierre Joosting
Spectratime, a business of the Orolia Group, has announced its smart, low-cost, ultra-small and fully integrated GPS/GNSS receiver and OCXO crystal oscillator module.

Packed with the latest integration technology, including the patented SmarTiming+ GPS/GNSS disciplining software operating at 1-nanosecond resolution, the GXClok™-500 reduces the price point for the next generation of high-performance timing applications.

Designed with a highly adaptable architecture, the GXClok-500 features a small footprint of 76 x 20 x 38 mm, 50-channel GPS/GNSS receiver, high frequency accuracy when locked to GPS of ±3E -12, and high frequency stability over a wide temperature range option of ±3E -10 over -40°C to +85°C.

Other chracteristics include low aging of ±1E -10/day, high long-term frequency stability of 2E -8/year, and low phase noise of -95 dBc/Hz at 1 Hz from the 10 MHz carrier. Power consumption is 3 W nominal, short-term stability is 1E -11 at 1 second, and warm up takes 7 minutes.

High holdover options when unlocked to GPS/GNSS of 10 microsecond/24 hours and low g-sensitivity options of 5E -10/g are available.

According to Pascal Rochat, Founder and Managing Director of Spectratime, "Integrating a high precision OCXO crystal oscillator and a flexible GPS/GNSS receiver in a 3.6 inch cube volume makes it an attractive product for many cross industry applications."