Chip scale atomic clocks operate in extremes

Targeting applications in defence, underwater geophysical survey and scientific markets, chip scale atomic clock (CASC) components from Microsemi have been thermally improved.

They are claimed to offer the lowest power hold-over atomic clock technology without compromising size, weight and power (SWaP), while operating at a wide temperature range of -10 to 70 degrees C.

According to the company, the technology enables new applications and missions not possible with traditional OCXO and Rubidium clocks, offering the lowest SWaP clock technology of 17 cubic centimeters (cc) in size, 35g of weight and only 120mW of power. The components offer ±5.0E-11 accuracy at shipment and a typical 9.0E-10/month aging rate, for low power atomic clock holdover applications.

The clocks can be used for low power holdover against GPS for position, navigation and timing security. They are also suitable for holdover in underwater (ocean bottom nodal) applications and atomic frequency reference in test and measurement applications.

The thermally remediated CSAC components are sampling now, with full production in October.


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