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CMD279

RF Variable Attenuator by Qorvo (38 more products)

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The CMD279 is a wideband GaAs MMIC 5-bit digital attenuator die that operates from 2 to 30 GHz (S, C, X, Ku, K, Ka Band). 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 with an attenuation accuracy of 0.2 dB step error. It has a low insertion loss of 3.5 dB at 10 GHz and can handle an input power of up to 27 dBm. The CMD279 is matched to 50 ohms which eliminates the need for RF port matching.

Product Specifications

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Product Details

  • Part Number
    CMD279
  • Manufacturer
    Qorvo
  • Description
    5-Bit Digital Attenuator from 2 to 30 GHz

General Parameters

  • Type
    Digital
  • Frequency
    2 to 30 GHz
  • Bits
    5 Bit
  • Channels
    1 Channel
  • Configuration
    Solid State
  • Attenuation Range
    15.5 dB
  • Power
    27 dBm
  • IIP3
    42 dBm
  • Insertion Loss
    3 to 6 dB
  • Switching Time
    25 ns
  • Supply Voltage
    2.5 to 5.5 V
  • Control Voltage
    0 to 5 V
  • Interface
    TTL/Serial/Parallel
  • Impedance
    50 Ohms
  • Return Loss
    15 dB
  • Input Return Loss
    15 dB
  • Output Return Loss
    15 dB
  • Package Type
    Die
  • Operating Temperature
    -55 to 85 Degree C
  • Storage Temperature
    -55 to 150 Degree C
  • Grade
    Space Qualified
  • RoHS
    Yes

Technical Documents

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