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6V31023 - Block Diagram


2:1 PCIe Gen1/2/3 Clock Multiplexer

The 6V31023 is a 2:1 differential clock mux for PCI Express applications. It has very low additive jitter making it suitable for use in PCIe Gen2 and Gen3 systems. The 6V31023 selects between 1 of 2 differential HCSL inputs to drive a single differential HCSL output pair. The output can also be terminated to LVDS.


  • Low additive jitter suitable for use in PCIe Gen2 and Gen3 systems
  • 16-pin TSSOP package for small board footprint
  • Outputs can be terminated to LVDS to drive a wider variety of devices
  • OE control pin offers greater system power management
  • Industrial temperature range supports demanding embedded applications
  • Additive cycle-to-cycle jitter <5 ps
  • Additive phase jitter (PCIe Gen3) <0.2ps
  • Operating frequency up to 200MHz

Product Specification

App Jitter ComplianceCore Voltage (V)Diff. Output SignalingInput Freq (MHz)Output Freq Range (MHz)Output Voltage (V)Power Consumption Typ (mW)Supply Voltage (V)
PCIe Gen3, PCIe Gen2, PCIe Gen13.3HCSL25.0000000.000000 - 200.0000000.81323.30

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
6V31023PGGActivePGG16TSSOP16CYesTubeCheck Availability
6V31023PGG8ActivePGG16TSSOP16CYesReelCheck Availability
6V31023PGGIActivePGG16TSSOP16IYesTubeCheck Availability
6V31023PGGI8ActivePGG16TSSOP16IYesReelCheck Availability


Technical Documentation

Title Other Languages Type Format File Size Datesort icon
Datasheets & Errata
6V31023 Datasheet Datasheet PDF 180 KB Oct 25, 2013
Apps 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 13, 2014
AN-843 PCI Express Reference Clock Requirements Application Note PDF 1.81 MB May 13, 2014
show all (8)
AN-842 Thermal Considerations in Package Design and Selection Application Note PDF 403 KB May 12, 2014
AN-840 Jitter Specifications for Timing Signals Application Note PDF 349 KB May 8, 2014
AN-827 Application Relevance of Clock Jitter Application Note PDF 1.06 MB Apr 24, 2014
AN-815 Understanding Jitter Units Application Note PDF 476 KB Apr 24, 2014
AN-805 Recommended Ferrite Beads Application Note PDF 38 KB Jan 15, 2014
PCN# : A1602-01(R1) Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB Apr 14, 2016
PCN# : A1602-01 Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB Feb 15, 2016
PCN# : A1511-01(R1) Add SPEL India as Alternate Assembly Location Product Change Notice PDF 596 KB Jan 28, 2016
show all (5)
PCN# : A1511-01 Add SPEL India as Alternate Assembly Location Product Change Notice PDF 544 KB Nov 13, 2015
PCN# : TB1403-01 Changed in Carrier Tape, Plastic Reel and Quantity per Reel on TSSOP-14, TSSOP-16 Product Change Notice PDF 663 KB Apr 8, 2014
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 25, 2016

News & Additional Resources

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