6-bit 0.50 dB Glitch-Free™ Digital Step Attenuator

The IDT F1951 Digital-Step-Attenuator featuring Glitch-Free™ technology improves system reliability and settling time.  It has an attenuation range of 31.5 dB with excellent accuracy and very low distortion.

Features

  • Glitch-Free™, < 0.6 dB transient overshoot
  • 100 MHz to 4000 MHz frequency range
  • Spurious Free Design
  • 3V to 5V supply
  • Attenuation Error < 0.2 dB @ 2 GHz
  • Low Insertion Loss < 1.2 dB @ 2 GHz
  • Excellent Linearity +68 dBm IP3I
  • Fast settling time, < 400 nsec
  • Class 2 JEDEC ESD (> 2kV HBM)
  • Serial Interface 31.5 dB Range
  • 4x4 mm Thin VFQFPN 24 pin package

 

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
F1951NBGI Active NBG24P2 VFQFPN 24 I Yes Tray Availability
F1951NBGI8 Active NBG24P2 VFQFPN 24 I Yes Reel Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
F1951 Datasheet Datasheet PDF 1.90 MB May 10, 2018
Application Notes & White Papers
AT0139-F1951 Transitions.pdf Application Note PDF 513 KB Sep 21, 2016
AN-896 RF Products EVS Digital Control Software Guide Application Note PDF 2.91 MB Aug 30, 2015
PCNs & PDNs
PCN# : A1402-04 Add Alternate Assembly & Test Product Change Notice PDF 45 KB May 20, 2014
Other
Digital Step Attenuators Product Overview 日本語, 简体中文 Overview PDF 185 KB Sep 14, 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
F1951 S-Parameters Model - S-Parameter ZIP 1.06 MB Aug 3, 2017
RF Digital Control Software Installer Software Tool ZIP 169.81 MB Aug 30, 2015

Evaluation Boards

Part Number Title Sort ascending
F1951EVBI Evaluation Board for F1951 6-bit Digital Step Attenuator