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    The Multiplied Crystal Oscillator (MXO-PLMX) is a fixed frequency industry leading ultra-low noise OCXO, which is phase locked to an internal HF ULN OCXO, and highly integrated with one or more low noise multiplier stages to create a high performance frequency signal between 200 MHz and 12 GHz.  The MXO-PLMX also provides excellent aging, temperature stability and spectral purity performance. Additional frequency multipliers are used to multiply the internal reference up to phase lock at the internal VHF oscillator frequency. A higher loop bandwidth (~250 Hz, typ) allows the close-in phase noise of the MXO output to be improved since the ultra-low noise HF internal reference provides superior close-in phase noise. The internal ULN reference signal, typically 10 MHz, is also provided and can be used for system synchronization or simply as a clean reference signal when needed. The package varies depending on the number of multiplier stages needed to create the desired frequency and range in size from 5.56” x 4” x 1”, 6.51” x 4” x 1” and 7.46” x 4” x 1”.  The base VHF oscillator frequency and multiple outputs are available as options. (i.e. If ordering a 10 GHz MXO-PLMX, you may also request the 100 MHz, 500 MHz and 5 GHz outputs since they are also being created in the multiplier string.) 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.



    •  OCXOs with Integrated Multipliers
    •  Includes Internal HF ULN OCXO Reference
    •  Frequencies from 200 MHz to 12 GHz, fixed
    •  Ultra Low Phase Noise Performance
    •  Excellent Aging and Temperature Stability
    •  Excellent Spectral Purity
    •  Easily Customized to Specific Frequency



    •  Military Applications
    •  Radar Systems
    •  Test Equipment
    •  Instruments
    •  Reference Source


    Frequencies from 200 MHz to 12 GHz, fixed
    Ultra Low Phase Noise
    Includes Integrated Multipliers, Filters and Amps
    Ruggedized for Dynamic Environments
    Nickel-Plated Machined Aluminum Case
    SMA(f) and Solder Pins on Side
    Output: Sine, +13 dBm, Standard; To +21 dBm, Optional
    Multiple Frequency Outputs Optional
    Includes Internal 10 MHz ULN OCXO Reference (Output Provided)
    Improved Close-In Phase Noise
    Excellent Aging and Temperature Stability


    Radar Systems
    Test Equipment
    Reference Oscillator

    Typical Specifications

    MXO-PLMX Typical Specs

    Mechanical Drawing

    MXO-PLMX mechanical