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211 Series OCXO


The 211 Series is one of the highest performance and most compact Oven Controlled Crystal Oscillators (OCXO) in the industry. The 211 Series performs to STRATUM III and IIIe standards and is ideal for applications requiring fast warm-up and low power consumption. The low part count combined with a hermetically sealed package makes this part one of the most reliable in its class. The 211 Series has been specifically designed for high volume applications.

Design Note: Base models can be customized to your specifications within the performance ranges shown below.


  • Base stations
  • Instrumentation
  • Test equipment
  • Telecommunications
  • Battery powered applications


  • Mobile Radios
  • PCS Systems
  • Home Meter Reading
  • Battery Powered Application
Performance Range
Parameter Available Range
Frequency 5MHz to 200MHz
Thermal Stability 2.0E-08 to 5.0E-07
Operating Temperature -55°C to +95°C
Aging (per year) 5.0E-08 to 4.0E-07
Supply Voltage 3.3V to 15.0V
Supply Voltage Sensitivity 5.0E-09
Output Sine(0 to +13dBm)
Harmonics Down to -40 dBc
Warm-up Time ( 25°C) 1 minutes
Warm-up Power (maximum) 1.5W to 4.5W
Continuous Power (25°C) 0.5W to 0.8W
Tuning Range ±2.0E-06 to ±5.0E-06
Tuning Voltage up to +10.0V

Typical Performance
Parameter 10MHz 100MHz 200MHz
Thermal Stability 2.0E-08 5.0E-08 5.0E-08
Phase Noise @ 1Hz -90dBc/Hz -70dBc/Hz -60dBc/Hz
Phase Noise @ 100kHz -155dBc/Hz -172dBc/Hz -172dBc/Hz
Short Term Stability (1s) 2.0E-11 1.0E-10 2.0E-10
Short Term Stability (10s) 5.0E-11 5.0E-10 1.0E-09
Output Level +7dBm +9dBm +9dBm

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