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9DBV0831 - Block Diagram


8-output 1.8 V PCIe Gen1-2-3 Zero Delay / Fanout Buffer

The 9DBV0831 is an 8-output very low power buffer for 100MHz PCIe Gen1, Gen2 and Gen3 applications. It can also be used for 50M or 125M Ethernet Applications via software frequency selection. The device has 8 output enables for clock management, and 3 selectable SMBus addresses.


  • 1.8 V operation: minimal power consumption
  • Outputs can optionally be supplied from any voltage between 1.05 V and 1.8 V; maximum power savings
  • OE# pins: support DIF power management
  • HCSL compatible differential input: can be driven by common clock sources
  • LP-HCSL differential clock outputs: reduced power and board space
  • Programmable slew rate for each output: allows tuning for various line lengths
  • Programmable output amplitude: allows tuning for various application environments
  • Pin/software selectable PLL bandwidth and PLL Bypass: minimize phase jitter for each application
  • Outputs blocked until PLL is locked: clean system start-up
  • Software selectable 50 MHz or 125 MHz PLL operation: useful for Ethernet Applications
  • Configuration can be accomplished with strapping pins: SMBus interface not required for device control
  • 3.3 V tolerant SMBus interface works with legacy controllers
  • Space-saving 6x6 mm 48-pin VFQFPN: minimal board space
  • Selectable SMBus addresses: multiple devices can easily share an SMBus segment

Product Specification

App Jitter ComplianceCore Voltage (V)Input Freq (MHz)Output Freq Range (MHz)Output Voltage (V)Power Consumption Typ (mW)
PCIe Gen3, PCIe Gen2, PCIe Gen11.830.000000 - 175.00000030.000000 - 137.5000000.862

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
9DBV0831AKILFActiveNDG48P1VFQFPN48IYesTrayCheck Availability
9DBV0831AKILFTActiveNDG48P1VFQFPN48IYesReelCheck Availability
9DBV0831AKLFActiveNDG48P1VFQFPN48CYesTrayCheck Availability
9DBV0831AKLFTActiveNDG48P1VFQFPN48CYesReelCheck Availability


Technical Documentation

Title Other Languages Type Format File Size Datesort icon
Datasheets & Errata
9DBV0831 Datasheet Datasheet PDF 320 KB Apr 28, 2016
Apps Notes & White Papers
AN-891 Driving LVPECL, LVDS, CML, and SSTL Logic with IDT's "Universal" Low-Power HCSL Outputs Application Note PDF 354 KB Dec 10, 2015
AN-879 Low-Power HCSL vs Traditional HCSL Application Note PDF 150 KB Apr 8, 2015
AN-844 Termination - AC Coupling Clock Receivers Application Note PDF 82 KB May 13, 2014
show all (9)
AN-843 PCI Express Reference Clock Requirements Application Note PDF 1.81 MB May 13, 2014
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# : TB1504-01R1 Qty per Reel Standardization for Selective Packages Product Change Notice PDF 95 KB Oct 22, 2015
PCN# : TB1504-01 Qty per Reel Standardization for Selective Packages Product Change Notice PDF 50 KB Jul 21, 2015
PCN# : TB1311-01 New Carrier Tape on VFQFPN-28, VFQFPN-40, VFQFPN-48 Product Change Notice PDF 790 KB Apr 8, 2014
IDT PCI Express Solutions Overview 简体中文, 日本語 Overview PDF 945 KB Aug 4, 2016
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
show all (6)
IDT Fanout Buffers Product Overview Product Brief PDF 739 KB Feb 17, 2015
9DBV0831 Reference Schematic Schematic PDF 33 KB Jan 23, 2015
High-Performance, Low-Phase Noise Clocks Buffers product brief Product Brief PDF 378 KB Aug 14, 2012

Software & Tools

Title Type Format File Size Datesort icon
9DBV0831 IBIS Model Model - IBIS ZIP 66 KB Dec 2, 2015

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