The F0473 is an integrated dual-path RF front-end consisting of an RF switch and two gain stages with 6dB gain control used in the analog front-end receiver of an Active Antenna System (AAS). The F0473 supports frequencies from 3.3GHz to 4.2GHz. 

The F0473 provides 35dB gain with +15dBm OP1dB, and 1.3dB noise figure (NF). Gain is reduced 6dB in a single step with a maximum settling time of 35ns. The device uses a single 3.3V supply and 130mA of IDD. 

The F0473 is offered in a 5 × 5 × 0.8 mm, 32-pin package with 50Ω input and output amplifier impedances for ease of integration into the signal path. 


  • Gain
    • 35dB typical in High Gain Mode
    • 29dB typical in Low Gain Mode
  • 1.3dB typical NF
  • OP1dB 
    • +15dBm typical in High Gain Mode 
    • +14dBm typical in Low Gain Mode
  • 50Ω single-ended input / output amplifier impedances
  • IDD = 130mA 
  • Independent Standby Mode for power savings
  • Supply voltage: +3.15V to +3.45V
  • 5 × 5 mm, 32-pin package
  • -40°C to +105°C exposed pad operating temperature range

Product Options

Orderable Part ID Part Status Pkg. Type Lead Count (#) Temp. Grade Carrier Type Package Buy Sample
RA81F0473STGNH#BB0 Preview VFQFPN 32 I Tray Package Info
RA81F0473STGNH#KB0 Preview VFQFPN 32 I Reel Package Info

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
F0473 Short-Form Datasheet Short Form Datasheet PDF 44 KB
RF Digital Control Software Installer Software Tool ZIP 169.81 MB
IDT Products for Radio Applications 日本語 Product Brief PDF 2.34 MB

Boards & Kits

Part Number Title Type Company
F0473EVB Evaluation Board for F0473 RF Variable Gain Amplifier Evaluation