Caesium Atomic Clock Provides Autonomous 100ns Accuracy Timing for Months

19 June 2023

Synchronised high precision timing is now being mandated across a broad range of different applications, in order for data to be processed correctly and operational consistency to be achieved.

Though in many such applications, global navigation satellite system (GNSS) technology is employed for providing the precise time and frequency, this approach is vulnerable to jamming and spoofing attacks. In order to supply long-term, high precision timing, Microchip has introduced the 5071B caesium atomic clock. This can perform autonomous time keeping for extended periods in situations where a GNSS signal cannot be accessed. It provides a 100ns holdover for more than two months.

Housed in a 3U high rackmount enclosure, it has the mobility needed for implementation in numerous different real-world application environments (rather then just being usable within a lab setting). Among the sectors that will benefit from its use are telecommunications, data centres, aerospace, metrology, etc. 

“The 5071A has been the world’s premier time and frequency standard for decades. With the upgraded 5071B, Microchip continues its position as the industry leader in complex timing solutions,” states Randy Brudzinski, VP of Microchip’s Frequency & Time Systems Business Unit. “Our customers can rely on the 5071B’s technology for years to come and implement a timing and frequency solution with confidence in continuity of supply and modern components, which eliminates obsolescence concerns.” 


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