Chip-scale atomic clocks extend temperature ranges

Chip-scale atomic clocks extend temperature ranges

Technology News |
By Graham Prophet

The thermally improved Chip Scale Atomic Clock (CSAC) components offer the lowest power holdover atomic clock technology without compromising size, weight and power (SWaP) while operating at a wide temperature range.


With an operating temperature range of -10 to 70C the components feature improved product design, process enhancements and robust product verification/validation. Their technology enables new applications and missions not possible in the past with traditional OCXO and Rubidium clocks, offering the lowest SWaP clock technology at 17 cm³ in size, 35g weight and 120 mW power. Microsemi’s CSAC product offers ±5.0E-11 accuracy at shipment and a typical ≤ 9.0E-10/month ageing rate, which makes it suitable for many low power atomic clock holdover applications.


The thermally improved CSAC products support the company’s strategic presence in the defence and security markets, targeting applications such as low power holdover against GPS vulnerabilities for position, navigation and timing security. They are also suitable for holdover in underwater (ocean bottom nodal) applications and atomic frequency reference in T&M market applications.




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