Chip scale atomic clock for extreme environments

August 19, 2021 // By Jean-Pierre Joosting
Chip scale atomic clock for extreme environments
For military and industrial systems, this atomic clock provides wider operating temperatures, faster warm-up and improved frequency stability.

A Chip Scale Atomic Clock (CSAC) ensures stable and accurate timing even when Global Navigation Satellite Systems (GNSS) time signals are unavailable. Helping industrial and military system designers to meet this requirement, Microchip Technology has announced its new SA65 CSAC, providing precise timing accuracy and stability in extreme environments. Some applications include advanced military platforms, ocean-bottom survey systems and remote sensing applications, which all require precise timing for mission success.

The SA65 CSAC is an embedded timing device with improved environmental ruggedness, delivering higher performance than the previous SA.45s CSAC, including double the frequency stability over a wider temperature range and faster warm-up at cold temperatures. The SA65 has an operating temperature range of -40 to 80 °C and a storage temperature range of -55 to 105 °C. The warm-up time of two minutes at -40 °C is 33% faster than that of the SA.45s.

Together, these SA65 CSAC performance improvements benefit designers of highly-portable solutions for military applications such as Assured Position, Navigation and Timing (A-PNT) and command, control, communications, computers, cyber, intelligence, surveillance and reconnaissance (C5ISR) requiring precise frequencies generated by a low Size, Weight and Power (SWaP) atomic clock. Improvements such as fast warm-up to frequency after cold start, temperature stability over a wide operating range, and frequency accuracy and stability enabling extended operation while GNSS is denied help to ensure mission success in conflict environments.

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