VIAVI Unveils 22×42 mm GNSS Oscillator with 24-Hour Holdover Drawing 0.5 W
VIAV•VIAVI Solutions launched the µPNT GDO-1000 GNSS-disciplined oscillator in an M.2 B-key module measuring 22mm × 42mm and weighing under 4 g, delivering microsecond-class 24-hour holdover with dual-frequency L1/L5 reception. It draws approximately 0.5 W and fits standard compute, defense and unmanned platforms requiring low-power precision timing.
1. Module Specifications and Performance
The µPNT GDO-1000 measures just 22 mm × 42 mm and weighs under 4 g in an M.2 B-key form factor, drawing approximately 0.5 W. It delivers microsecond-class timing with 24-hour holdover powered by a MEMS-based oscillator that maintains stability across military temperature ranges, vibration and shock.
2. Key Features
It features dual-frequency L1/L5 GNSS reception, multiple 1 PPS and 10 MHz inputs and outputs, and accepts external references such as M-Code GPS without hardware modification. Patented AI and ML algorithms predict and compensate for oscillator behavior across environmental conditions, providing resilient timing in interference-prone or GNSS-denied environments.
3. Target Markets and Integration
Designed for defense, airborne systems, unmanned platforms, data center cards and communications equipment, the module addresses the cost and supply constraints of chip-scale atomic clocks and the size and power demands of OCXO solutions. Its drop-in compatibility with standard compute and time appliance cards simplifies system integration without custom mechanical design.
