The Vibration Isolated VHF Citrine PLO is a 25 MHz to 160 MHz fixed frequency rugged OCXO integrated with a low noise phase lock loop circuit and mounted within an outer enclosure using shock mounts. The PLO offers good temperature stability (when free-running), Standard, Premium or Golden phase noise options (to -190 dBc/Hz) and low g-sensitivity (to 2E-10/g per axis). Frequency dividers are used to prescale the internal VHF oscillator and the external reference frequencies to phase lock at a common lower frequency. The PLL loop bandwidth options are typically ≤5 Hz or ≤60 Hz, but can be configured for optimal performance considering the reference signal provided. Although vibration isolation may not be a viable solution for some applications, it works well for dampening vibration beyond the natural resonant frequency of the isolated unit, typically 30 Hz to 50 Hz, and varies depending on the weight of the isolated unit and vibration profile. The Vibration Isolated VHF Citrine PLO is an ideal solution for airborne and mobile applications with random vibration requiring improved dynamic phase noise performance at offsets at and beyond 80 Hz. Effective g-sensitivity to 5E-12/g (2 kHz offset) can be realized. The nickel-plated machined aluminum outer enclosure is 3” x 2.8” x 1.75”. An internal voltage regulator is provided for excellent power supply line rejection. Please consult the factory if you need any specifications to be modified to better suit your application.
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