The F1956 is part of a family of Glitch-FreeTM DSAs which offers very high reliability due to its monolithic silicon die construction in a compact 5 x 5 mm 32-pin TQFN package.  It has very low insertion loss is with minimal distortion and is designed with a 50Ω input and output impedance. Additionally the device is designed to have high accurate which improves SNR and/or ACLR by ensuring the system gain is achieved as close to targeted as possible.
 

Features

  • Serial and 7-bit Parallel Interface 
  • 31.75dB Range
  • 0.25dB steps
  • Glitch-Free™: < 2dB transient ringing
  • 500ns settling time
  • Ultra linear +64dBm IP3
  • Low Insertion Loss < 1.3dB at 4GHz
  • Attenuation error < 0.6dB at 4GHz
  • 3.3V or 5V Supply
  • 1.8V or 3.3V control logic
  • -40°C to +105°C operating temperature
  • 5 x 5 mm, 32-pin TQFN package

Product Options

Part Number Part Status Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
F1956NBGI
Active VFQFPN 32 I Yes Tray
Availability
F1956NBGI8
Active VFQFPN 32 I Yes Reel
Availability

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
F1956 Datasheet Datasheet PDF 6.75 MB
User Guides & Manuals
RF Product Selection Guide Guide PDF 3.64 MB
Application Notes & White Papers
AN-896 RF Products EVS Digital Control Software Guide Application Note PDF 3.17 MB
PCNs & PDNs
PCN# : A1402-04 Add Alternate Assembly & Test Product Change Notice PDF 45 KB
Downloads
F1956 S-parameters Model - S-Parameter ZIP 5.40 MB
RF Digital Control Software Installer Software Tool ZIP 169.81 MB
Other
Digital Step Attenuators 日本語, 简体中文 Product Brief PDF 1.07 MB
IDT Products for Radio Applications 日本語 Product Brief PDF 2.34 MB

Boards & Kits

Part Number Title Type Company
F1956EVBI Evaluation Board for F1956 7-bit Digital Step Attenuator Renesas