The 9FGV1004 is a member of IDT's PhiClock™ programmable clock generator family. The 9FGV1004 provides 1 copy each of 2 integer-related frequencies, 2 copies of a fractional or spread-spectrum frequency and 2 copies of the crystal reference input. Two select pins allow for hardware selection of the desired configuration, or two I²C bits all easy software selection of the desired configuration. The user may configure any one of the four OTP configurations as the default when operating in I²C mode. Four unique I²C addresses are available, allowing easy I²C access to multiple components.


  • 4 programmable output pairs plus 2 LVCMOS REF outputs
  • 2 integer output frequencies and 1 fractional or spread-spectrum output frequency per configuration
  • 10MHz–325MHz output frequency (LVDS or LP-HCSL), integer configuration
  • 10MHz–200MHz output frequency (LVCMOS), integer configuration
  • 10MHz–156.25MHz output frequency, fractional or spread spectrum configuration
  • 1.8V to 3.3V core VDD and VDDREF
  • Individual 1.8V to 3.3V VDDO for each programmable output pair
  • Supports HCSL, LVDS and LVCMOS I/O standards
  • Supports LVPECL and CML logic with easy AC coupling – see AN-891 for alternate terminations
  • 320fs rms typical phase jitter outputs at 156.25MHz (12kHz–20MHz)
  • PCIe Gen 1–4 compliant
  • Supported by IDT Timing Commander™ software

Product Options

Choose from the options below, or use the Custom Part Configuration Utility.
Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
9FGV1004B000NBGI Active NBG24P2 VFQFPN 24 I Yes Tray
9FGV1004B000NBGI8 Active NBG24P2 VFQFPN 24 I Yes Reel
9FGV1004BQ500LTGI Preview LTG24T2 LGA 24 I Yes Tray
9FGV1004BQ500LTGI8 Preview LTG24T2 LGA 24 I Yes Reel
9FGV1004BQ200LTGI Preview LTG24T2 LGA 24 I Yes Tray
9FGV1004BQ200LTGI8 Preview LTG24T2 LGA 24 I Yes Reel

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
9FGV1004 Datasheet Datasheet PDF 209 KB Dec 18, 2018
Application Notes & White Papers
AN-1014 Microstrip vs Stripline: Crosstalk and RMS Phase Jitter Application Note PDF 341 KB Nov 1, 2018
AN-1001 Combining PhiClock™ and 9ZXL1951D for PCIe Gen4/5 Application Note PDF 103 KB Mar 12, 2018
AN-975 Cascading PLLs Application Note PDF 128 KB Aug 2, 2017
AN-918 Programmable Clocks vs Crystal Oscillators Application Note PDF 221 KB Mar 9, 2016
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 7, 2015
AN-843 PCI Express Reference Clock Requirements Application Note PDF 1.81 MB May 12, 2014
AN-842 Thermal Considerations in Package Design and Selection Application Note PDF 403 KB May 11, 2014
AN-835 Differential Input with VCMR being VIH Referenced Application Note PDF 77 KB May 10, 2014
AN-840 Jitter Specifications for Timing Signals Application Note PDF 349 KB May 7, 2014
AN-839 RMS Phase Jitter Application Note PDF 149 KB May 6, 2014
AN-836 Differential Input to Accept Single-ended Levels Application Note PDF 37 KB May 5, 2014
AN-827 Application Relevance of Clock Jitter Application Note PDF 1.06 MB Apr 23, 2014
AN-815 Understanding Jitter Units Application Note PDF 476 KB Apr 23, 2014
AN-802 Crystal-Measuring Oscillator Negative Resistance Application Note PDF 52 KB Mar 11, 2014
AN-805 Recommended Ferrite Beads Application Note PDF 38 KB Jan 14, 2014
Timing Solutions Products Overview Overview PDF 4.11 MB Oct 31, 2018
PCI Express® Timing Solutions Overview Overview PDF 301 KB Apr 19, 2018
9FGV1004 Reference Schematic Schematic PDF 18 KB Apr 11, 2018
IDT Products for Radio Applications 日本語 Product Brief PDF 2.34 MB Nov 29, 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 24, 2016

Software & Tools

Title Other Languages Type Format File Size Date
9FGV1004 IBIS Model Model - IBIS ZIP 98 KB May 3, 2018
9FGV1001, 9FGV1004, 9FGV1005 Timing Commander Personality File Software ZIP 2.18 MB Mar 22, 2018
9FGV100x Timing Commander User Guide Manual - Software PDF 1.38 MB Feb 23, 2018
9FGV100x Register Descriptions and Programming Guide Manual - Software PDF 254 KB Nov 27, 2017

Evaluation Boards

Part Number Title Sort ascending
EVK9FGV1004 Evaluation Kit for 9FGV1004 Programmable PhiClock™ Generator