New Atomic Clock For Mission Critical Defense Infrastructure

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Superior holdover accuracy over extended time period in mission critical applications in wireless base station such as defense systems and test and measurement instruments solutions during periods of Global Navigation Space System (GNSS) vulnerabilities caused by jamming and outage can now be attained using atomic clocks from Microsemi. The accuracy of atomic clocks basically relies on two factors in order to meet the system performance and efficiency. The first factor is temperature of the sample atoms—colder atoms move much more slowly, allowing longer probe times. The second factor is the frequency and intrinsic width of the electronic transition. Higher frequencies and narrow lines increase the precision.

Microsemi has recently announced the launch of Quantum Rubidium Miniature Atomic Clock (MAC) SA.3X family based on the company’s exclusive coherent population trapping (CPT) technology, claims it to be the industry’s smallest, lightest and highest-performing MACs. According to the media release, “Featuring excellent mechanical robustness and temperature performance, the Microsemi Quantum Rubidium MAC SA.3X family is only 25 per cent of the volume of the nearest competing clock in the same category. This small size, combined with its very low power consumption, makes the SA.3x series ideal for a broad variety of platforms that mount directly on printed circuit board assemblies (PCBA), eliminating the need for a heat sink or fan.”

The Quantum MAC SA.3X series atomic clock is available for sampling as the company states.

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Features of Quantum MAC SA.3X are given below:

  • Highest precision atomic clock
  • Smallest form factor (smaller than most OCXOs)
  • Standard quartz oscillator pinouts
  • Low power consumption
  • RoHS 6/6 compliant
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