The F4481 is a 400MHz to 1100MHz Quad Path TX DVGA outfitted with 100Ω differential inputs and 50Ω single-ended outputs. The device is part of a complete family of VGAs targeting FDD and TDD applications within the 400MHz to 4200MHz frequency range. Using a single 3.3V power supply and only 520mA of ICC, the F4481 provides four independent transmit paths, each with 28dB typical maximum gain, +35dBm OIP3, +17dBm output P1dB, and 5.7dB NF. Each channel includes a glitch-free digital step attenuator that reduces gain by up to 31.5dB in precise 0.5dB steps.
 
The F4481 is packaged in an 8 × 8 mm 56-LGA, with matched 100Ω differential input and 50Ω single-ended output impedances for ease of integration into the signal path.
 

Features

  • Independent quad channels for FDD TX applications
  • 400MHz to 1100MHz
  • 28dB typical max gain at 900MHz
    • Precise SPI-controlled Glitch-Free™ gain adjustment
  • 31.5dB gain range with 0.5dB step size
  • 5.7dB NF at 900MHz
  • +35dBm OIP3 at 900MHz
  • +17dBm output P1dB at 900MHz
  • 3.3V supply voltage
  • ICC = 524mA
  • 100Ω differential input impedances
  • 50Ω single-ended output impedances
  • 1.8V and 3.3V logic support
  • Independent channel standby modes for power savings
  • Operating temperature (TEP) range: -40°C to +115°C
  • 8 × 8 mm, 56-LGA package

tuneProduct Options

Part Number Part Status Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
Active LGA 56 I Yes Tray
Availability
Active LGA 56 I Yes Reel
Availability

descriptionDocumentation

Title language Type Format File Size Date
Datasheets & Errata
star F4481 Datasheet Datasheet PDF 3.19 MB
User Guides & Manuals
RF Product Selection Guide Guide PDF 1015 KB
Application Notes & White Papers
AN-896 RF Products EVS Digital Control Software Guide Application Note PDF 3.17 MB
Other
Macro BTS Product Overview Product Brief PDF 506 KB

file_downloadDownloads

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

memoryBoards & Kits

Part Number Title Type Company
F4481EVS Evaluation System for the F4481 DIFF-In / SE-Out Quad Path TX DVGA Evaluation Renesas