Skip to main content
6V31021 - Block Diagram
6V31021 - Pinout


4-Output Low Power Fanout Buffer For PCIe Gen3 And 10G Ethernet

The IDT6V31021 is a 4-output low- power differential buffer. Each output has its own OE# pin. It has a maximum operating frequency of 167 MHz and supports all SERDES clock frequencies for Freescale QorIQ CPUs.


  • 4 - low power differential output pairs
  • Individual OE# control of each output pair
  • Low power differential outputs
  • Power down mode when all OE# are high
  • Industrial temperature range
  • 20-pin MLF
  • Output cycle-cycle jitter <15 ps additive
  • Output to Output skew: <50 ps
  • PCIe Gen3 addtive phasejitter <0.3 ps rms
  • 10.3125G / 64 additive phase jitter <100 fs rms

Product Specification

App Jitter CompliancePLLDiff. OutputsDiff. Output SignalingOutput Banks (#)Diff. InputsDiff. Input SignalingPower Consumption Typ (mW)Supply Voltage (V)Accepts Spread Spec Input
PCIe Gen2, PCIe Gen3, PCIe Gen1No4HCSL11HCSL663.30Yes

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
6V31021NLGIActiveNLG20P1VFQFPN20IYesTubeCheck Availability
6V31021NLGI8ActiveNLG20P1VFQFPN20IYesReelCheck Availability


Technical Documentation

Title Other Languages Type Format File Size Datesort icon
Datasheets & Errata
6V31021 Datasheet Datasheet PDF 90 KB Jun 18, 2012
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-842 Thermal Considerations in Package Design and Selection Application Note PDF 403 KB May 12, 2014
show all (10)
AN-840 Jitter Specifications for Timing Signals Application Note PDF 349 KB May 8, 2014
AN-836 Differential Input to Accept Single-ended Levels Application Note PDF 37 KB May 6, 2014
AN-834 Hot-Swap Recommendations Application Note PDF 67 KB May 6, 2014
AN-835 Differential Input with VCMR being VIH Referenced Application Note PDF 77 KB May 6, 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
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

Related Videos

  • 2015-10-19 PCIe Clocking Architectures
  • 2015-10-19 PCIe Common Clock Architecture and its...
  • 2015-10-19 PCIe Separate Reference without Spread Clock...
  • 2015-10-19 PCIe Separate Reference Clock With...