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 HF Citrine |
|
Airborne Radar Systems Tacticle Radio Vehicular Communication |
-165 dBc/Hz (Standard) -174 dBc/Hz (Premium) |
3.25 x 3.05 x 1.25" |
Model | Description | Application | Phase Noise (100 kHz) | Size |
---|---|---|---|---|
![]() Vibration Isolated HF Citrine Plus |
|
Airborne Radar Systems Tacticle Radio Vehicular Communication |
1 MHz (10 MHz divide by 10) 50 MHz (16.666666 MHz by 3) -165 dBc/Hz ( 1 MHz Standard) -168 dBc/Hz ( 1 MHz Premium) -153 dBc/Hz ( 50 MHz Standard) -163 dBc/Hz ( 50 MHz Premium) |
3.25 x 3.05 x 1.75" |
Model | Description | Application | Phase Noise (100 kHz) | Size |
---|---|---|---|---|
![]() Vibration Isolated VHF Citrine |
|
Airborne Radar Systems Tacticle Radio Vehicular Communication |
-170 dBc/Hz (Standard) -176 dBc/Hz (Premium) -188 dBc/Hz (Golden) |
3 x 2.8 x 1.15" |
Model | Description | Application | Phase Noise (100 kHz) | Size |
---|---|---|---|---|
![]() Vibration Isolated VHF Citrine Plus |
|
Airborne Radar Systems Tacticle Radio Vehicular Communication |
200 MHz (100 MHz x 2) 500 MHz (100 MHz x 5) 650 MHz (130 MHz x 5) -163 dBc/Hz (200 MHz, Standard) -154 dBc/Hz (500 MHz, Standard) -154 dBc/Hz (650 MHz, Standard) -169 dBc/Hz (200 MHz, Premium) -160 dBc/Hz (500 MHz, Premium) -160 dBc/Hz (650 MHz, Premium) |
3 x 2.8 x 1.75" |