2-30 GHz (S, C, X, Ku, K, Ka Band) 5-bit Digital Attenuator

    Discontinued >

    End of Life announced October 31, 2023 (PCN 23-0159).
    Last Time Buy: May 10, 2024
    Contact your local sales representative for assistance.

    Key Features

    • Ultra wideband performance
    • Low insertion loss
    • Wide attenuation range
    • Small die size

    Qorvo's CMD279 is positive controlled, wideband GaAs MMIC 5-bit digital attenuator die which operates from 2 to 30 GHz. Each bit of the attenuator is controlled by a single voltage of either 0 V or +5 V. The attenuator bit values are 0.5 (LSB), 1, 2, 4, and 8 dB, for a total attenuation of 15.5 dB. The CMD279 has a low insertion loss of 3.5 at 10 GHz and the attenuation accuracy is typically 0.2 dB step error. The CMD279 is a 50 ohm matched design which eliminates the need for RF port matching. The CMD279 offers full passivation for increased reliability and moisture protection.

    Typical Applications

      • Electronic Warfare (EW)
      • Radar
      • Space
      • Satellite Communications (Satcom)
      • Test & Measurement
      • Phased Arrays
    Frequency Min(MHz) 2,000
    Frequency Max(MHz) 30,000
    Insertion Loss(dB) 3.5
    Attenuation Range(dB) 15.5
    IP0.1dB(dBm) 27
    IIP3(dBm) 42
    Interface Parallel
    Bits 5
    Step Size(dB) 0.5
    Voltage(V) 5
    Package Type Die
    RoHS Yes
    Lead Free Yes
    Halogen Free Yes
    ITAR Restricted No
    ECCN EAR99

    X-Microwave Design System

    This product is available as an X-Microwave Block (X-MWblock) for evaluation.

    X-MWblocks are RF and microwave "drop-in" components that can be used individually for prototyping or in production assemblies. X-MWblocks are easy to test, integrate, align, and configure to 60 GHz and beyond. No messy sweat soldering or silver epoxy processes are required. X-MWblocks are highly characterized with S-parameter models and connect with a patented solder-less interconnect technology.

    Order the X-Microwave Block for this product