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Atomic Clocks and Oscillators

For applications requiring the highest degree of free-running frequency and timing accuracy, we provide a broad portfolio of both laboratory-grade system atomic clocks and small PCB-mountable atomic oscillators based on atomic resonance techniques. Our sophisticated frequency and timing solutions can be used in a variety of applications, from secure network timing to autonomous atomic clock systems. Visit our Frequency and Timing page to learn more about our comprehensive product portfolio.

Featured Products

GNSS Disciplined Oscillators (GNSSDO)

Access the accuracy of the world’s most stable atomic clocks onboard GPS satellites and similar constellations with our GNSS-disciplined oscillators. These self-calibrating modules deliver UTC time and long-term frequency stability to laboratories and mobile applications. The advanced software algorithms are able to acquire and maintain GNSS-lock in dynamic environments while also identifying and mitigating satellite broadcast errors. These modules pair an integrated Microchip MAC or CSAC with proprietary software compensation so they can maintain long frequency and timing holdover in GNSS-denied missions while keeping size, weight and power to a minimum.


53100A Phase Noise Analyzer

Introducing the 53100A Phase Noise Analyzer for measuring precision atomic clocks, quartz and other high-performance oscillators up to 200 MHz. The intuitive PC-based interface makes it easy to acquire frequency stability measurements including Allan Deviation (ADEV), phase noise, AM noise, jitter measurements and more. The small size, rapid acquisition time and backwards compatibility with the legacy 5120a series of phase noise analyzers make the 53100A easy to integrate into existing test infrastructure or for it to serve as the workhorse for high-performance metrology applications.

MAC SA5X Board Photo

MAC-SA5X Miniaturized Atomic Clock

This rubidium-based atomic clock can meet your ultra-stable frequency and timing requirements when your design’s small size and power constraints prevent the use of larger lamp-based atomic clocks. This next-generation miniature atomic clock is completely redesigned for rapid warm-up time and to support a wider temperature range, making atomic clock timing available for an array of applications. New features including 1 PPS calibration and a versatile software interface to ease the design process. With its advancements in temperature stability and long-term drift rates, the MAC-SA5X enables frequency accuracy to be maintained for longer holdover durations.

MAC SA5X Board Photo

Atomic System Clocks

  • Cs beam tube with zero frequency drift
  • Active hydrogen maser for ultimate short-term stability
  • Largest install-base for timekeeping
  • Integration into time-scale applications
Atomic Clock Systems

Small Atomic Oscillators

  • World’s lowest-power commercial atomic clock
  • Ruggedized Rb oscillators for military applications
  • Low-power, low-profile and low-noise variants

Small Atomic Oscillators