• Product Model:
    Regenerative Divider (LNRD4)



    The LNRD4 is a regenerative frequency divide-by-two module with an optional 3/2 frequency output. This module adds an input amplifier to the LNRD2 topology to accommodate lower input power applications. The input power can range from +10 to +20 dBm. Division is accomplished with a low noise mixer and amplifier yielding exceptional phase noise performance. The module includes the high-level mixer, filters, amplifiers and power splitters necessary to provide two f/2 outputs and one 3f/2 output. The typical output noise floor is -175 dBc/Hz (-172 dBc/Hz, guaranteed) and the close-in noise is significantly lower than the best crystal sources making the LNRD4 a nearly ideal frequency divider. This divider is designed for a fixed input frequency between 10 MHz and 2000 MHz.



    • Input Frequency: 10 MHz to 2 GHz
    • Two f/2 Outputs; One 3f/2 Output
    • Includes Input Amplifier
    • Intrinsic Phase Noise to -175 dBc/Hz
    • Integral Output Filters



    • Synthesizer Building Block
    • Communication Systems
    • Radar Systems
    • Electronic Warfare Systems


    Low Noise Regenerative Divider (LNRD4)
    Input Frequency from 10 MHz to 2 GHz, fixed
    Division Factors: Two (Divide by 2 outputs) and One (3/2 output)
    Input/Output Waveform: Sine Wave
    Input Level: +10 to +20 dBm
    Output Level: Up to +15 dBm
    Intrinsic Phase Noise Floor to -172 dBc/Hz (Output Referred)
    Integral Mixer, Filters, Amplifers and Splitters
    Current Draw: <300 mA
    Nickel-Plated Machined Aluminum Housing
    SMA(f) Input and Output Connectors, Standard

    Typical Specifications


    Mechanical Drawing


    Ordering Information