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mRO-50 Image

The mRO-50 from Safran is a 10 MHz Low SWaP-C Miniaturized Rubidium Oscillator that has been designed to meet the latest commercial, military, and aerospace requirements where time stability and power consumption are critical. The clock design is based on the proven rubidium clock heritage at Safran and it has been adapted for low power (0.36 W @ 3.3V) and size.

The mRO-50 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. It is available in a compact module that measures 50.8 x 50.8 x 19.5 mm and takes up 51 cc of volume (about one-third of the volume compared to standard rubidiums).

This Rubidium Oscillator can operate over a temperature from -10°C to 60°C (military version extended to -40°C to 75°C) and is also ideal for UAVs and underwater applications. It can also be used in telecom, navigation, broadcast, defence, and other battery powered instruments.

Product Specifications

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Product Details

  • Part Number
  • Manufacturer
    Safran Electronics & Defense
  • Description
    10 MHz Ultra-Portable High Precision & Performance Rubidium Oscillator

General Parameters

  • Frequency
    10 MHz
  • Output Waveform
    Square Wave
  • Frequency Retrace
    ±0.1 ppb
  • Warm-up time
    2 minute
  • Grade
    Space Qualified
  • Supply Voltage
    5 V
  • Input Power
    0.45 to 1.5 W
  • Spurious
    -80 dBc
  • Phase Noise
    -140 to -60 dBc/Hz
  • Phase Noise 1 kHz
    -135 dBc/Hz
  • Phase Noise 10 kHz
    -140 dBc/Hz
  • Phase Noise 100 Hz
    -110 dBc/Hz
  • Short Term Stability
    0.1 to 0.3 ppb
  • Short Term Stability 100s
    0.01 ppb
  • Short Term Stability 10s
    0.03 ppb
  • Short Term Stability 1s
    0.1 ppb
  • Application
    Aerospace & Defence, UAVs, GNSS, Telecommunication
  • Package Type
    Surface Mount
  • Dimension
    50.8 x 50.8 x 19.5 mm
  • Weight
    75 g
  • Operating Temperature
    -10 to 60 Degree C
  • Storage Temperature
    -55 to 85 Degree C

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