2-Output Very Low-Phase Jitter HCSL Fanout Buffer

The 9INT31H200 is a 2-output very high-performance HCSL fanout buffer for high performance interconnect applications. It can be used at speeds up to 350MHz and is compliant to the DB200H specification.


  • Extremely low additive phase jitter; supports DB200H requirements
  • 3.3V operation; standard industry power supply
  • 2 OE pins (1 for each output); easy control of clocks to CPU sockets
  • HCSL-compatible input; supports popular devices
  • 1MHz to 350MHz operating frequency; covers all popular Ethernet frequencies
  • Space saving 3 × 3 mm 16-QFN; minimal board space

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
9INT31H200NLGI Preview NLG16 VFQFPN 16 I Yes Tray
9INT31H200NLGI8 Preview NLG16 VFQFPN 16 I Yes Reel

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
9INT31H200 Datasheet Datasheet PDF 170 KB Aug 9, 2018
Application Notes & White Papers
AN-828 Termination - LVPECL Application Note PDF 229 KB Jul 5, 2016
AN-844 Termination - AC Coupling Clock Receivers Application Note PDF 82 KB May 12, 2014
AN-843 PCI Express Reference Clock Requirements Application Note PDF 1.81 MB May 12, 2014
AN-842 Thermal Considerations in Package Design and Selection Application Note PDF 403 KB May 11, 2014
AN-835 Differential Input with VCMR being VIH Referenced Application Note PDF 77 KB May 10, 2014
AN-840 Jitter Specifications for Timing Signals Application Note PDF 349 KB May 7, 2014
AN-834 Hot-Swap Recommendations Application Note PDF 67 KB May 5, 2014
AN-833 Differential Input Self Oscillation Prevention Application Note PDF 94 KB May 5, 2014
AN-836 Differential Input to Accept Single-ended Levels Application Note PDF 37 KB May 5, 2014
AN-827 Application Relevance of Clock Jitter Application Note PDF 1.06 MB Apr 23, 2014
AN-815 Understanding Jitter Units Application Note PDF 476 KB Apr 23, 2014
AN-805 Recommended Ferrite Beads Application Note PDF 38 KB Jan 14, 2014
Timing Solutions Products Overview Overview PDF 4.11 MB Oct 31, 2018
IDT Clock Generation Overview 日本語 Overview PDF 1.83 MB Apr 28, 2016
IDT Clock Distribution Overview 日本語 Overview PDF 3.79 MB Apr 24, 2016
IDT Fanout Buffers Product Overview Product Brief PDF 739 KB Feb 16, 2015
High-Performance, Low-Phase Noise Clocks Buffers product brief Product Brief PDF 378 KB Aug 13, 2012