Dual Matched Broadband RF DVGA

The F0448 is a 3.4GHz to 3.8GHz Dual RF digital variable gain amplifier (DVGA) designed for use in receivers.
This Dual RF DVGA provides two independent receiver paths each with 13dB typical maximum gain and 6dB noise figure designed to operate with a single +5V supply. For each path, gain control is split into 3 separate attenuators; DSA0 a single 6dB step using a single control pin, DSA1 a 23dB SPI-controlled gain adjustment in 1dB steps, and DSA2 includes 18dB attenuation in 6dB steps controlled using two control pins. F0448 offers +37dBm nominal output IP3 using 220mA total ICC. This device is packaged in a 6 x 6 mm, 36-QFN with 50Ω single-ended RF input and RF output impedances for ease of integration.
 

Features

  • RF frequency range: 3.4GHz to 3.8GHz§  
  • Dual path RF amp and DSAs for Diversity / MIMO receivers
  • < 2dB overshoot between DSA transitions
  • 13dB typical max gain at 3.6GHz
  • DSA0: Single 6dB coarse step
  • DSA1: 23dB total gain range in 1dB steps
  • DSA2: 18dB gain range in 6dB steps
  • +37dBm OIP3 at 3.6GHz
  • 6dB noise figure at 3.6GHz
  • +5V supply voltage
  • ICC = 220mA
  • Independent standby: 7mA standby current
  • SPI interface for DSA1
  • 1-bit control for DSA0
  • 2-bit control for DSA2
  • 50Ω input and output impedance
  • Broadband, internally matched
  • Temperature range: -40°C to  +105°C
  • 6 x 6 mm, 36-QFN package

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
F0448NBGK Active NBG36P2 VFQFPN 36 K Yes Tray
Availability
F0448NBGK8 Active NBG36P2 VFQFPN 36 K Yes Reel
Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
F0448 Datasheet Datasheet PDF 3.34 MB Oct 24, 2018
Application Notes & White Papers
AN-1013 F0448 GUI Automation Application Note PDF 10.27 MB Sep 20, 2018
AN-896 RF Products EVS Digital Control Software Guide Application Note PDF 2.91 MB Aug 30, 2015
AN-874 Using the TRL Calibration Board for the F0480 Matched Broadband RF VGA Application Note PDF 431 KB Dec 9, 2014
Other
IDT Products for Radio Applications 日本語 Product Brief PDF 2.34 MB Nov 29, 2016

Software & Tools

Title Other Languages Type Format File Size Date
RF Digital Control Software Installer Software Tool ZIP 169.81 MB Aug 30, 2015

Evaluation Boards

Part Number Title Sort ascending
F0448EVB Evaluation Board for F0448 Dual Matched Broadband RF DVGA