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Low-G 263 Double Oven Controlled Crystal Oscillator


The 263 Series is a rugged Double Oven Controlled Crystal Oscillator ideal for demanding military applications such as UAVs, rotorcraft, and tracked vehicles as well as harsh industrial environments. The primary focus of the 263 Series are those applications requiring significantly reduced acceleration sensitivity beyond the levels obtainable through conventional solutions. Operating as a stand alone product or in tandem with mechanical shock and vibration systems, the 263 Series is capable of reducing the effects of acceleration on phase noise to levels near the static noise floor. Along with excellent performance under vibration the 263 model offers a temperature stability performance of ±1.0E-10 over 100 °C temperature range.


  • Mobile Fast Acquisition
  • Low-G for Rugged, Military Applications
  • Ground Communications
  • Satellite Communications
  • Aiborne Telecom and Satellite Communications
  • Timing System Integration


  • Low g-sensitivity < 1.0 E-10/g/axis
  • Internal 24-bit D/A converter for non-volatile calibration via I2C
  • Tuning via control voltage available
  • Factory optimized for your vibration profile
  • Hermetic packaging
  • Fast Warm-up
  • Thermal stability to ±1.0E-10 over 100°C
  • Wide temperature range available (-55°C to +95°C)
  • Package size (2.0"x2.0"x1.0")
  • Low static phase noise
  • Optional internal ROM data storage
  • Optional screening per MIL-PRF-55310
  • Optional shock & vib isolation system
  • Radiation Hardened versions (consult Factory)



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