TX Digital VGA 700 MHz to 1100 MHz

The F1451 is a High-Gain/High-Linearity 700MHz to 1100MHz TX Variable Gain Amplifier used in transmitter applications. The F1451 TX VGA provides 32dB maximum gain with +41dBm OIP3 and 3.6dB noise figure. Up to 29.5dB gain control is achieved using the combination of a digital step attenuator (DSA) plus KLIN™ RF variable gain amplifier gain adjustment. This device uses a single 5V supply and 185mA of ICC. This device is packaged in a 6 × 6 mm, 28-QFN with 50Ω single-ended RF input and RF output impedances for ease of integration into the signal path.

Features

  • Broadband 700MHz to 1100MHz
  • 32dB max gain
  • 3.6 dB NF @ max gain (900MHz)
  • 29.5dB total gain control range, 0.5dB step
  • < 2dB overshoot between major gain transitions 
  • +41dBm OIP3
  • Maintains +23dBm output P1dB over 13dB gain adjustment range
  • SPI interface for DSA control
  • Single 5V supply voltage
  • ICC = 185mA
  • Up to +105 °C TCASE operating temperature
  • 50Ω input and output impedance
  • Standby for power savings
  • Pin compatible 1400–2300MHz and 2100–2950MHz versions
  • 6 × 6 mm, 28-QFN package

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
F1451NKGK Active NKG28 VFQFPN 28 K Yes Tray Availability
F1451NKGK8 Active NKG28 VFQFPN 28 K Yes Reel Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
F1451 Datasheet REV O Datasheet PDF 7.00 MB Nov 29, 2016
Application Notes & White Papers
AN-896 RF Products EVS Digital Control Software Guide Application Note PDF 2.91 MB Aug 30, 2015
PCNs & PDNs
PCN#A1709-04 Alternate Assembly Location at ASECL on Select Package Product Change Notice PDF 32 KB Oct 25, 2017
Other
RF Products Family 日本語, 简体中文 Overview PDF 1.69 MB Jun 5, 2018
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
F1451 S-Parameters Model - S-Parameter ZIP 1.26 MB Sep 21, 2016
RF Digital Control Software Installer Software Tool ZIP 169.81 MB Aug 30, 2015

Evaluation Boards

Part Number Title Sort ascending
F1451EVSK Evaluation Kit for F1451 TX VGA