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 NCG20 VFQFPN 20 I Yes Tray Availability
F1912NCGI8 Active NCG20 VFQFPN 20 I Yes Reel Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
F1912 Datasheet REV 01 - Datasheet PDF 2.08 MB Jun 24, 2015
Apps 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
RF Digital Step Attenuators Product Overview 日本語, 简体中文 Overview PDF 412 KB 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