The F1431B is a high linearity RF Digital Variable Gain Amplifier, (DVGA) used as the power amplifier driver in transmitter applications. The F1431B provides 14dB gain, +41.1dBm OIP3, and a 4.2dB noise figure (NF) at 2.0GHz. The digital step attenuator (DSA) has 23dB range with a 0.5dB step size and operates from 0.35GHz to 3GHz with one tuning circuit. This device uses a single 5V supply and 150mA of current.


  • 0.35GHz to 3GHz operating range
  • 14.3dB typical gain at 2GHz
  • Glitch-Free™ 23dB gain adjustment
  • 0.5dB step size
  • 4.2dB NF at 2GHz
  • +41.1dBm OIP3 at 2GHz
  • +23.3dBm output P1dB at 2GHz
  • Single 5V supply voltage
  • IDD = 150mA
  • 50Ω single-ended input / output impedances
  • 1.8V and 3.3V logic support
  • Standby Mode for power savings
  • Operating temperature (TCASE) range: -40°C to +105°C
  • 4 × 4 mm, 24-TQFN package

Product Options

Part Number Part Status Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
Active VFQFPN 24 K Yes Tray
Active VFQFPN 24 K Yes Reel


Title language Type Format File Size Date
Datasheets & Errata
F1431B Datasheet Datasheet PDF 2.82 MB
User Guides & Manuals
RF Product Selection Guide Guide PDF 3.64 MB


Title language Type Format File Size Date
RF Digital Control Software Installer Software Tool ZIP 169.81 MB

Boards & Kits

Part Number Title Type Company
F1431BEVB Evaluation Board for the F1431B High Linearity RF DVGA Evaluation Renesas