• Product Model:
    Premium HF PLO



    The Premium HF PLO is a 5 MHz to 25 MHz fixed frequency ultra-low noise OCXO integrated with a low noise phase lock loop circuit, and is ideal for use as a phase noise clean-up oscillator when phase locking to a more stable source such as a rubidium, cesium or GPS reference. The PLO offers low aging and good temperature stability (when free-running), and a low phase noise floor to -174 dBc/Hz. Frequency dividers are used to prescale the internal HF oscillator and the external reference frequencies to phase lock at a common lower frequency. The standard PLL loop bandwidth is ≤ 1 Hz. The PLO is housed in a 3.5” x 2.5” x 0.8” nickel plated machined aluminum case. 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 5 MHz to 25 MHz, fixed
    Ultra Low Phase Noise
    Ruggedized for Dynamic Environments
    Nickel-Plated Machined Aluminum Case
    SMA(f) and Solder Pins on Side
    Output: Sine, +13 dBm, Standard
    Automatic Input Detection
    Low Loop Bandwidth: ≤ 1 Hz, typical
    Dual Output Option
    Configured for use with Vibration Isolators


    Up/Down Converters
    GPS Receivers
    System Synchronization
    Test Equipment
    Radar Systems

    Typical Specifications

    Prem HF PLO Typical Specs

    Package A

    Prem HF PLO PKG A

    Package B

    Prem HF PLO PKG B