Vibration Isolated

Wenzel Associates designs and manufactures crystal oscillators, fixed frequency systems, integrated microwave assemblies and synthesizers to X-band. Many are custom designs for environments which require very low noise performance under vibration. Wenzel has many vibration isolated oscillator designs, and vibration isolation is standard in Wenzel’s HF and VHF Citrine Series oscillators. The Citrine can be provided with mounting holes for isolators or the oscillator with shock isolators can be mounted into a standard external Citrine housing. When isolated in the housing, vibration testing is provided at Wenzel for the system as a whole. In some cases, the Citrine’s internal housing has two cavities, one for a very low noise crystal oscillator and a second cavity that houses a PLL, x2 stage, odd order multiplier stage (x3, x5 or x7), a high output amplifier stage or dividers. The additional cavity adds mass, which can drive the resonant frequency of the isolators below 35 Hz. The typical resonant frequency for the Citrine products which includes just the low noise oscillator is ~50 Hz.
Model Description Application Phase Noise (100 kHz) Size
Vibration Isolated VHF Citrine PLO
Vibration Isolated HF Citrine PLO
  • Frequencies 10 MHz to 25 MHz, fixed
  • Standard or Premium Phase Noise Options
  • Ruggedized for Dynamic Environments
  • Nickel-Plated Machined Aluminum Case
  • SMA(f) and Solder Pins on Side
  • Optional Voltage Reference and Oven Monitor Pins
  • Output: Sine, +13 dBm, Standard
  • Automatic Input Detection
  • Low Loop Bandwidth: ≤ 1 Hz, typical
  • Low G-Sensitivity to 1E-10/g per axis
  • Excellent Temperature Stability, Free-Running
  • Low Aging rate
  • Natural Mount Resonant Frequency (~35 Hz, typical)
Airborne
Radar Systems
Tacticle Radio
Vehicular Communication
System Synchronization
-165 dBc/Hz (Standard)
-174 dBc/Hz (Premium)
3.25 x 3.05 x 1.75"
Model Description Application Phase Noise (100 kHz) Size
Vibration Isolated VHF Citrine PLO
Vibration Isolated VHF Citrine PLO
  • Frequencies from 25 MHz to 160 MHz, fixed
  • Standard, Premium, or Golden Phase Noise Options
  • Ruggedized for Dynamic Environments
  • Nickel-Plated Machined Aluminum Case
  • SMA(f) and Solder Pins on Side
  • Optional Voltage Reference and Oven Monitor Pins
  • Output: Sine, +13 dBm, Standard
  • Automatic Input Detection
  • LBW: 1 Hz to 100 Hz (Optimized for Best Performance)
  • Low G-Sensitivity to 2E-10/g per axis
  • Natural Mount Resonant Frequency (~35 Hz, typical)
Airborne
Radar Systems
Tacticle Radio
Vehicular Communication
System Synchronization
Test Equipment
-170 dBc/Hz (Standard)
-176 dBc/Hz (Premium)
-188 dBc/Hz (Golden)
3 x 2.8 x 1.75"
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