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9FGU0641 Block Diagram
9FGU0641 Pinout Diagram

9FGU0641

6-output 1.5 V PCIe Gen1-2-3 Clock Generator with Zo=100 ohms

The 9FGU0641 is a member of IDT’s 1.5 V Ultra-Low-Power PCIe clock family with integrated output terminations providing Zo=100 Ω. The device has 6 output enables for clock management and supports 2 different spread spectrum levels in addition to spread off.

For information regarding evaluation boards and material, please contact your local IDT sales representative.

Features

  • Direct connection to 100 ohm transmission lines; saves 24 resistors compared to standard PCIe devices
  • 45 mW typical power consumption; reduced thermal concerns
  • Outputs can optionally be supplied from any voltage between 1.05 and 1.5 V; maximum power savings
  • OE# pins; support DIF power management
  • Programmable Slew rate for each output; allows tuning for various line lengths
  • Programmable output amplitude; allows tuning for various application environments
  • DIF outputs blocked until PLL is locked; clean system start-up
  • Selectable 0%, -0.25% or -0.5% spread on DIF outputs; reduces EMI
  • External 25 MHz crystal such as the IDT 603-25-150 (25 MHz); supports tight ppm with 0 ppm synthesis error
  • 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)Diff. Output SignalingInput Freq (MHz)Output Freq Range (MHz)Output Voltage (V)Power Consumption Typ (mW)Spread SpectrumSupply Voltage (V)Xtal Freq (kHz)
PCIe Gen3, PCIe Gen2, PCIe Gen11.5LP-HCSL25.00000025.000000, 100.0000000.8, 1.545Yes1.50

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
9FGU0641AKILFActiveNDG40P2VFQFPN40IYesTrayCheck Availability
9FGU0641AKILFTActiveNDG40P2VFQFPN40IYesReelCheck Availability
9FGU0641AKLFActiveNDG40P2VFQFPN40CYesTrayCheck Availability
9FGU0641AKLFTActiveNDG40P2VFQFPN40CYesReelCheck Availability

Documents

Technical Documentation

Title Other Languages Type Format File Size Datesort icon
Datasheets & Errata
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9FGU0641 Datasheet Datasheet PDF 207 KB Oct 28, 2015
User Guides & Manuals
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9FGx08 PCIe Clock Generator Evaluation Boards User Guide Manual - Eval Board PDF 748 KB Oct 26, 2015
Apps Notes & White Papers
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AN-918 Programmable Clocks vs Crystal Oscillators Application Note PDF 221 KB Mar 10, 2016
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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
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AN-879 Low-Power HCSL vs Traditional HCSL Application Note PDF 150 KB Apr 8, 2015
show all (11)
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AN-843 PCI Express Reference Clock Requirements Application Note PDF 1.81 MB May 13, 2014
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AN-842 Thermal Considerations in Package Design and Selection Application Note PDF 403 KB May 12, 2014
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AN-840 Jitter Specifications for Timing Signals Application Note PDF 349 KB May 8, 2014
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AN-839 RMS Phase Jitter Application Note PDF 149 KB May 7, 2014
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AN-827 Application Relevance of Clock Jitter Application Note PDF 1.06 MB Apr 24, 2014
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AN-815 Understanding Jitter Units Application Note PDF 476 KB Apr 24, 2014
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AN-802 Crystal-Measuring Oscillator Negative Resistance Application Note PDF 52 KB Mar 12, 2014
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AN-805 Recommended Ferrite Beads Application Note PDF 38 KB Jan 15, 2014
PCNs & PDNs
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PCN# : TB1303-02 Change of Tape & Reel Packing Method for Selective Products Product Change Notice PDF 361 KB Mar 24, 2013
Other
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IDT PCI Express Solutions Overview 简体中文, 日本語 Overview PDF 945 KB Aug 4, 2016
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IDT Clock Generation Overview 日本語 Overview PDF 1.83 MB Apr 28, 2016
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IDT Clock Distribution Overview 日本語 Overview PDF 3.79 MB Apr 25, 2016

Software & Tools

Title Type Format File Size Datesort icon
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Software for PCIe Evaluation Kits Software ZIP 2.39 MB Aug 10, 2015

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