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.


  • 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

下单器件 ID Part Status Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type 封装 Buy Sample
F1951NBGI Active VFQFPN 24 I 是的 Tray Package Info
F1951NBGI8 Active VFQFPN 24 I 是的 Reel Package Info

Documentation & Downloads

文档标题 他の言語 Type 文档格式 文件大小
F1951 Datasheet Datasheet PDF 2.87 MB
RF Product Selection Guide Guide PDF 2.72 MB
应用指南 &白皮书
AT0139-F1951 Transitions.pdf Application Note PDF 513 KB
AN-896 RF Products EVS Digital Control Software Guide Application Note PDF 3.17 MB
PCN# : A1402-04 Add Alternate Assembly & Test Product Change Notice PDF 45 KB
F1951 S-Parameters Model - S-Parameter ZIP 1.68 MB
RF Digital Control Software Installer Software Tool ZIP 169.81 MB
Digital Step Attenuators ( 简体中文) English, 日本語 Product Brief PDF 1.07 MB
IDT Products for Radio Applications 日本語 Product Brief PDF 2.34 MB
Digital Step Attenuators ( 简体中文) English, 日本語 Product Brief PDF 1.07 MB