6-bit 0.5 dB Glitch-Free™ Wideband Digital Step Attenuator

The F1912 is part of a family of Glitch-FreeTM DSAs which offers very high reliability due to its monolithic silicon die construction in a compact 4mm x 4mm 20-pin package QFN package.  The silicon design has very low insertion loss and low distortion (> +60 dBm IP3I.)  The device has pinpoint accuracy and settles to final attenuation value within 400 nsec.  Most importantly, the F1912 includes IDT’s Glitch-FreeTM technology which results in low overshoot & ringing during MSB transitions

Features

  • Serial & 6bit Parallel Interface
  • 31.5dB Control Range
  • 0.5dB step
  • Glitch-FreeTM, low transient overshoot
  • Attenuation Error < 0.22 dB @ 2 GHz
  • Low Insertion Loss < 1.4 dB @ 2 GHz
  • Ultra linear >+63 dBm IP3I
  • 500 ns switching speed
  • Stable Integral Non-Linearity over temperature
  • 3.0 V to 5.25 V supply
  • 1.8 V or 3.3 V control logic
  • -55°C to +105°C operating temperature 
  • 4mm x 4mm Thin QFN 20-pin package
  • Low Current Consumption  550µA typ

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
F1912NCGI Active NCG20P1 VFQFPN 20 I Yes Tray Availability
F1912NCGI8 Active NCG20P1 VFQFPN 20 I Yes Reel Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
F1912 Datasheet Datasheet PDF 1.51 MB Jul 10, 2017
Application Notes & White Papers
AT0342-F1912 Settling Time.pdf Application Note PDF 556 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# : TB1604-01 Alternate Test Location for F1912NCGI, F1912NCGI8 Product Change Notice PDF 37 KB Apr 20, 2016
PCN# : A1402-04 Add Alternate Assembly & Test Product Change Notice PDF 45 KB May 20, 2014
Other
The IDT Consumer Products Advantage Overview PDF 4.01 MB Jun 30, 2017
F1912 S-Parameters Model - S-Parameter ZIP 619 KB Dec 30, 2016
The IDT Automotive Advantage Overview PDF 3.55 MB May 26, 2017
The IDT Communications Products Advantage Overview PDF 2.54 MB Feb 13, 2017
RF Digital Step Attenuators Product Overview 日本語, 简体中文 Overview PDF 412 KB Nov 29, 2016
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
F1912 IBIS Model Model - IBIS ZIP 3 KB Dec 18, 2016
RF Digital Control Software Installer Software Tool ZIP 169.81 MB Aug 30, 2015

Evaluation Boards

Part Number Title Sort ascending
F1912EVBI Evaluation Board for F1912 6-bit Digital Step Attenuator