Orolia will introduce its Miniaturized Rubidium Oscillator, the mRO-50 during the September Regular Project Calls as part of the OCP Time Appliances Project.

The mRO-50 is a breakthrough low SWaP-C Miniaturized Rubidium Oscillator designed by Orolia to meet the latest requirements where time stability and power consumption are critical. It provides a one-day holdover below 1µs and a retrace below 1 x 10-10 in a form factor (50.8 x 50.8 x 19.5mm) that takes up only 51 cc of volume (about one-third of the volume compared to standard rubidiums) and consumes only 0.36W of power, which is about ten times less than existing solutions with similar capabilities. It is a double-resonance rubidium clock and essentially consists of a voltage-controlled crystal oscillator (VCXO) which is locked to a highly stable atomic transition in the ground state of the 85Rb isotope.


Christian Schori, Project Manager Atomic Clocks & Oscillators, Orolia
Stavros Melachroinos, Senior Product Manager Atomic Clocks & Oscillators, Orolia
Jean-Arnold Chenilleau, Senior Program Manager, Orolia Systems and Solutions (O2S)

About the Time Appliances Project

The Open Compute Project (OCP) initiated a sub-project called Time Appliances Project (TAP) dedicated to time in datacenters. This project aims to provide a platform to bring together, discuss, standardize and share technologies and solutions across industries with the datacenter applications and datacenter network infrastructure as the main interest.

Time appliances project aims to support the development of a PTP profile for datacenter applications and datacenter network infrastructure. This profile will cover time-sensitive applications over OCP-compliant and PTP-aware networking infrastructure such as network switches, network clocks, network interface cards, timing modules & connectors, etc.

Additionally, the profile will address various requirements for high accuracy and reliable distribution and synchronization of time, such as expected performance, networking, software API, data models, deployment and telemetry. The project also aims at openness and interoperability using open-source PTP software implementations for timing appliances.