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7-output PCIe Gen1 Clock Synthesizer with 3 PCI Outputs

The 9FG107 is a Synthesizer that provides 7 differential output pairs that are compliant to the Intel CK409/ CK410 specification. It provides support for PCI-Express, next generation I/O, and SATA. The part synthesizes several output frequencies from either a 14.31818 MHz crystal or a 25 MHz crystal. The device can also be driven by a reference input clock instead of a crystal. It provides outputs with cycle-to-cycle jitter of less than 85 ps and output-to-output skew of less than 85 ps. 9FG107 also provides a copy of the reference clock and 3 33 MHz PCI output clocks. Frequency selection can be accomplished via strap pins or SMBus control.


  • Generates common CPU/PCI Express frequencies from 14.318 MHz or 25 MHz
  • Crystal or reference input
  • 7 - 0.7 V HCSL differential output pairs
  • 3 - 33 MHz PCI outputs
  • 1 - REFOUT
  • Supports Serial-ATA at 100 MHz
  • Two spread spectrum modes: 0 to -0.5 downspread and +/-0.25% centerspread
  • Unused inputs may be disabled in either driven or Hi-Z state for power management

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 Gen13.3HCSL0.0000000.0000000.8, 3.3561Yes3.3014.320000

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
9FG107AGLNObsoletePAG48TSSOP48CYesTubeCheck Availability
9FG107AGLNTObsoletePAG48TSSOP48CYesReelCheck Availability


Technical Documentation

Title Other Languages Type Format File Size Datesort icon
Datasheets & Errata
9FG107 Datasheet Datasheet PDF 230 KB Aug 23, 2007
Apps Notes & White Papers
AN-828 Termination - LVPECL Application Note PDF 229 KB Jul 5, 2016
AN-845 Termination - LVCMOS Application Note PDF 62 KB May 13, 2014
AN-843 PCI Express Reference Clock Requirements Application Note PDF 1.81 MB May 13, 2014
show all (13)
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-838 Peak-to-Peak Jitter Calculations Application Note PDF 32 KB May 7, 2014
AN-839 RMS Phase Jitter Application Note PDF 149 KB May 7, 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-802 Crystal-Measuring Oscillator Negative Resistance Application Note PDF 52 KB Mar 12, 2014
AN-805 Recommended Ferrite Beads Application Note PDF 38 KB Jan 15, 2014
AN-808 PCI Express/HCSL Termination Application Note PDF 54 KB Jan 15, 2014
PDN# : K-13-01R2 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 125 KB Oct 3, 2013
PDN# : K-13-01R1 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 125 KB Feb 28, 2013
PDN# : K-13-01 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 122 KB Jan 16, 2013
show all (4)
PCN#: TB-0510-05 New Shipping Tube for TSSOP/TVSOP/TSSOP Exposed Product Change Notice PDF 201 KB Dec 13, 2005
IDT PCI Express Solutions Overview 简体中文, 日本語 Overview PDF 945 KB Aug 4, 2016

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