Cesium Frequency References

Microchip’s cesium time and frequency references are the most accurate commercial atomic clocks available. Microchip’s state-of-the-art facilities manufacture cesium references with accuracies as low as 5E−13, with no systemic frequency drift during the operational life of the unit and no need for calibration. Cesium frequency references are widely deployed as the primary source of time and frequency in a broad range of applications, including timing and metrology, defence, Position Navigation and Timing (PNT) systems, telecommunications, data centres and critical infrastructure.

Atomic system clocks define the unit second and the time of day.  These clocks achieve the tightest stabilities and accuracies of any commercial time or frequency references. Previously they were only used by national research and metrology labs. Today they are widely deployed to meet the demands for increasing tighter synchronisation for multiple industries and to address Global Navigation Satellite System (GNSS) denial concerns.