3.3 - 3.9GHz 1 Watt High Linearity Amplifier

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Broadcom’ ALM-31322 is a high linearity 1 Watt PA with good OIP3 performance and exceptionally good PAE at P1dB gain compression point, achieved through the use of Broadcom's proprietary 0.25um GaAs E-pHEMT process.  This linear amplifier offers exccellent uniformity for any application.


  • Fully matched, input and output
  • High linearity and P1dB
  • Unconditionally stable across load condition
  • Built-in adjustable temperature-compensated internal bias circuitry
  • GaAs E-pHEMT Technology[1]
  • 5V supply
  • Excellent uniformity in product specifications
  • Tape-and-Reel packaging option available
  • MSL-3 and Lead-free
  • High MTTF for base station application


  • Class A driver amplifier for WiMAX Base Stations
  • General purpose gain block

Lifecycle Status


Replacement Part

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Substance Compliance

  • RoHS6
    Fully Compliant
Specification Value
Lifecycle Obsolete
RoHS6 Compliant Y
Distrib. Inventory No
Frequency (GHz) 3.3-3.9
Bias Condition (V@mA) 5V@413mA
NF (dB) 2.8
Gain (dB) 13.2
P1dB (dBm) 31
OIP3 (dBm) 47.7
Package SMT 5x6
Obsolescence Notice1 i
Product Change Notice (PCN)6 i
Reliability Data Sheet1 i
S-Parameter1 i


Demonstration circuit board for ALM-31122/222/322