Microsemi unveils enhanced quantum rubidium miniature atomic clock

Microsemi is making available an enhanced Quantum Rubidium Miniature Atomic Clock (MAC) SA.3X family. Based on Microsemi’s coherent population trapping (CPT) technology, the MAC SA.3X family is only 25 percent of the volume of the nearest competing clock in the same category.

As a result of its small size, combined with its very low power consumption, the SA.3x series is suitable for a variety of platforms that mount directly on printed circuit board assemblies (PCBA), eliminating the need for a heat sink or fan.

The Quantum Rubidium MAC family provides significantly improved levels of holdover accuracy over extended time periods, and exceeds current wireless LTE base station and mission-critical defence infrastructure requirements. According to Microsemi the MAC-SA.3x will meet the LTE holdover requirements for several days, a significant feature and a capability that exceeds conventional quartz-based oscillators, which can only meet holdover requirements for a few hours. This difference results in an improved mitigation solution during periods of GNSS vulnerabilities caused by jamming and outage.

According to industry market research and internal analysis, the market for high performance oscillators is estimated to be around $470 million in 2015.