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9DBV0441 - Block Diagram


4-output 1.8 V PCIe Gen1-2-3 Zero Delay / Fanout Buffer with Zo=100 ohms

The 9DBV0441 is a member of IDT's SOC-Friendly 1.8V Very-Low-Power (VLP) PCIe family. It has integrated output terminations providing Zo=100ohms for direct connection to 100ohm transmission lines. The device has 4 output enables for clock management, and 3 selectable SMBus addresses.


  • Direct connection to 100ohm transmission lines; saves 16 resistors compared to standard HCSL outputs
  • 53mW typical power consumption in PLL mode; minimal power consumption
  • Spread Spectrum (SS) compatible; allows use of SS for EMI reduction
  • OE# pins: support DIF power management
  • HCSL compatible differential input: can be driven by common clock sources
  • 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 5x5 mm 32-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 - 137.5000000.865

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
9DBV0441AKILFActiveNLG32P3VFQFPN32IYesTrayCheck Availability
9DBV0441AKILFTActiveNLG32P3VFQFPN32IYesReelCheck Availability
9DBV0441AKLFActiveNLG32P3VFQFPN32CYesTrayCheck Availability
9DBV0441AKLFTActiveNLG32P3VFQFPN32CYesReelCheck Availability


Technical Documentation

Title Other Languages Type Format File Size Datesort icon
Datasheets & Errata
9DBV0441 Datasheet Datasheet PDF 206 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-843 PCI Express Reference Clock Requirements Application Note PDF 1.81 MB May 13, 2014
show all (9)
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
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# : A1511-01(R1) Add SPEL India as Alternate Assembly Location Product Change Notice PDF 596 KB Jan 28, 2016
PCN# : A1511-01 Add SPEL India as Alternate Assembly Location Product Change Notice PDF 544 KB Nov 13, 2015
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 (7)
Automotive Solutions Overview 简体中文 Overview PDF 2.79 MB Mar 9, 2016
IDT Fanout Buffers Product Overview Product Brief PDF 739 KB Feb 17, 2015
9DBV0441 Reference Schematic Schematic PDF 72 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
9DBV0441 IBIS Model Model - IBIS ZIP 70 KB Dec 2, 2015

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