The IDT F1977 Digital-Step-Attenuator featuring Glitch-Free™ technology improves system reliability and settling time.  It has an attenuation range of 31.75 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 < 1.4 dB @ 1 GHz
  • Excellent linearity +64 dBm IIP3
  • Attenuation step error 0.1 dB @ 1 GHz
  • Serial & Parallel interface 31.75 dB range
  • Low Spurious design
  • 3 V / 5 V supply, 1.8 V / 3.3 V control logic
  • Fast settling time
  • Class 1C JEDEC ESD (1.5 kV HBM)
  • 5x5 mm 32-VFQFPN package

tuneProduct Options

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

descriptionDocumentation

Title language Type Format File Size Date
Datasheets & Errata
star F1977 Datasheet REV1 Datasheet PDF 10.67 MB
User Guides & Manuals
RF Product Selection Guide Guide PDF 1015 KB
Application Notes & White Papers
IDT Products for Wired Broadband Applications Application Brief PDF 686 KB
AN-896 RF Products EVS Digital Control Software Guide Application Note PDF 3.17 MB
Other
Digital Step Attenuators 日本語, 简体中文 Product Brief PDF 1.07 MB

file_downloadDownloads

Title language Type Format File Size Date
Software
RF Digital Control Software Installer Software Tool ZIP 169.81 MB

memoryBoards & Kits

Part Number Title Type Company
F1977EVBI Evaluation Board for F1977, 7-bit, 75Ω, Digital Step Attenuator Evaluation Renesas

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