Frequency control insights for engineering-led industries.

Frequency control means giving an electronic system a stable and accurate frequency reference, so that radio, telecom, measurement instruments and tim...

An oven controlled crystal oscillator (OCXO) is the standard choice when a design needs a stable, low phase noise frequency reference. Choosing the ri...

A GPS disciplined oscillator (GPSDO) and a rubidium frequency standard can both supply a 10 MHz and 1PPS reference. They get there in different ways, ...

The "cut" of a quartz crystal — the precise angle at which a thin wafer is sliced from the raw quartz — has a major effect on how it behaves electrica...

Both rubidium frequency standards and OCXOs are used where quartz alone isn't accurate or stable enough — but they sit at different points on the perf...

Holdover is a timing system's ability to keep accurate time on its own after it loses its external reference signal — most commonly GPS. Rather than t...

A GPSDO (GPS-disciplined oscillator, also called a GNSS-disciplined oscillator) combines a high-quality crystal oscillator, typically an OCXO, with a ...

Phase noise describes the short-term, random fluctuations in the phase of a signal — in practical terms, how "pure" or "jittery" an oscillator's outpu...

OCXOs and TCXOs are both designed to solve the same basic problem — quartz crystals drift in frequency as temperature changes — but they solve it in v...