VIAVI Solutions has unveiled the µPNT GDO-1000, which is a miniature GNSS-disciplined oscillator that provides high-precision timing in situations where conventional timing modules are either bulky or power-consuming. The new module is designed in the M.2 B-key format with dimensions of 22mm x 42mm, weighs under four grams, and is suitable for applications such as defense and aircraft, unmanned systems, telecommunications gear, data center boards, and any other application that requires small size, low weight, and power consumption. The introduction of this product occurs amid the growing number of disruptions in GNSS due to increased interference. The GDO-1000 combines dual-frequency GNSS capability with microsecond-class 24-hour holdover performance, patented AI and machine learning algorithms for oscillator behavior prediction, and a MEMS oscillator that provides superior thermal stability and vibration resistance compared with traditional quartz-based alternatives.
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The module also supports external 1PPS inputs, enabling integration with M-Code GPS and alternative navigation sources without hardware modifications. “Until now, customers needing reliable timing in compact systems have had to choose between two suboptimal options. CSACs are expensive and supply-constrained. Full-size OCXO-based timing solutions are too large and power-hungry for many modern platforms,” said Doug Russell, Senior Vice President and General Manager, Aerospace & Defense, VIAVI. “The GDO-1000 offers a new path that doesn’t force customers to compromise. Its holdover performance approaches what customers expect from atomic-class clocks, in a module that fits on a standard M.2 slot and draws approximately half a watt.”
