Wednesday, July 24, 2024

Improved Frequency Stability With This Component

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It also offers wider operating temperatures, high precision and low-power consumption for military and industrial systems

Critical military missions, systems involved in ocean-sottom survey and remote sensing applications require precise timing for meeting their objectives. At times when Global Navigation Satellite Systems (GNSS) time signals fail, Chip Scale Atomic Clocks (CSACs) help ensure stable and accurate timing.

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To facilitate industrial and military system designers to meet such requirements, Microchip Technology Inc. has now announced the new SA65 CSAC that provides precise timing accuracy and stability in extreme environments.

The SA65 CSAC is an embedded timing solution with improved environmental ruggedness for 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 degrees Celsius (oC) and a storage temperature range of -55 to 105 oC. The warm-up time of two minutes at -40 oC 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 for extended operation (in absence of GNSS) ensures mission success in conflict environments.

The SA65 CSAC is a low-power commercial atomic clock and provides precise timing for portable and battery-powered applications requiring continuous operation and holdover in GNSS-denied environments. The SA65 is form-, fit- and function-compatible with the SA.45s, which minimizes risk and redesign costs for the system developer while improving performance and environmental insensitivity.

The CSAC family of atomic clocks is supported by Developer Kit 990-00123-000, as well as associated software, a user guide and technical support. Complete product information about the SA65 CSAC is available at To purchase Microchip’s Chip Scale Atomic Clock products, visit Microchip’s purchasing portal.


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