6. CMD279C3
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CMD279C3

RF Variable Attenuator by Custom MMIC (7 more products)
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The CMD279C3 is a positive controlled, wideband GaAs MMIC 5-bit digital attenuator that operates from 2 to 18 GHz (S, C, X, Ku 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 9 GHz and can handle an input power of up to 27 dBm. The CMD279C3 is available in a 3 x 3mm QFN surface mount package and is matched to 50 ohms which eliminate the need for RF port matching.

Product Specifications

    Product Details

    • Part Number :
      CMD279C3
    • Manufacturer :
      Custom MMIC
    • Description :
      5-Bit Digital Attenuator from 2 to 18 GHz

    General Parameters

    • Type :
      Digital
    • Frequency :
      2 to 18 GHz
    • Bits :
      5 Bit
    • Channels :
      1 Channel
    • Configuration :
      Solid State
    • Attenuation Range :
      Up to 15.5 dB
    • Attenuation Accuracy :
      0.2 dB
    • Power :
      0.45 W
    • P1dB :
      26.5 dBm
    • IIP3 :
      42 dBm
    • Insertion Loss :
      3.2 to 5 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 :
      13 dB
    • Package Type :
      Surface Mount
    • Package :
      QFN
    • Dimension :
      3x3 mm
    • Operating Temperature :
      -40 to 85 Degrees C
    • Storage Temperature :
      -55 to 150 Degrees C
    • RoHS :
      Yes

    Technical Documents
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