Part Details
  • -19 to 12.5 dB Gain Control in 0.5 dB Steps
  • Power-up State Selection
  • High Output IP3: +39 dBm
  • TTL/CMOS Compatible Serial,
    Parallel, or Latched Parallel Control
  • ±0.25 dB Typical Gain Step Error
  • Single +5V Supply
  • 32 Lead 5 x 5 mm SMT Package: 25 mm²
Additional Details
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The HMC742 is a digitally controlled variable gain amplifier which operates from 0.5 GHz to 4 GHz, and can be programmed to provide from -19 dB attenuation, to 12.5 dB of gain, in 0.5 dB steps. The HMC742 delivers noise figure of 4 dB in its maximum gain state, with output IP3 of up to +39 dBm in any state. The dual mode gain control interface accepts either a three-wire serial input or a 6 bit parallel word. The HMC742 also features a user selectable power up state and a serial output for cascading other serially controlled Hittite components. The HMC742 is housed in an RoHS compliant 5x5 mm QFN leadless package, and requires minimal external components.


  • Cellular/3G Infrastructure
  • WiBro / WiMAX / 4G
  • Microwave Radio & VSAT
  • Test Equipment and Sensors
  • IF & RF Applications

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