6-bit 0.5 dB, 75Ω, Glitch-Free™ Digital Step Attenuator

The IDT F1975 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 and insertion loss.

Features

  • 5 MHz to 3000 MHz frequency range
  • Glitch-Free™ low transient overshoot
  • Low insertion loss < 1.2 dB @ 1 GHz
  • Excellent linearity +64 dBm IIP3
  • Attenuation step error 0.1 dB @ 1 GHz
  • Serial & Parallel interface 31.5 dB range
  • Low Spurious design
  • 3 V / 5 V supply, 1.8 V / 3.3 V control logic
  • Fast settling time
  • Class 2 JEDEC ESD (2 kV HBM)
  • 4x4 mm 20-VFQFPN package

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
F1975NCGI Active NCG20P1 VFQFPN 20 I Yes Tray Availability
F1975NCGI8 Active NCG20P1 VFQFPN 20 I Yes Reel Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
F1975 Datasheet Datasheet PDF 3.88 MB Sep 21, 2017
Application Notes & White Papers
AN-896 RF Products EVS Digital Control Software Guide Application Note PDF 2.91 MB Aug 30, 2015
Other
RF Digital Step Attenuators Product Overview 日本語, 简体中文 Overview PDF 966 KB Jan 19, 2018
IDT Products for Wired Broadband Applications Application Briefs PDF 686 KB Sep 1, 2017
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
F1975 S-parameters Model - S-Parameter ZIP 869 KB Aug 24, 2017
RF Digital Control Software Installer Software Tool ZIP 169.81 MB Aug 30, 2015

Evaluation Boards

Part Number Title Sort ascending
F1975EVBI Evaluation Board for F1975, 6-bit, 75Ω, Digital Step Attenuator