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932SQL450 Block Diagram
932SQL450 Pinout - QFN
932SQL450 Pinout - TSSOP

932SQL450

Low-Power CK420BQ Derivative for PCIe Common Clock Architectures

The 932SQL450 is a low power version of the CK420BQ synthesizer for Intel-based server platforms. It has 85-ohm LP-HCSL outputs allowing for direct connection to 85-ohm transmission lines. The 932SQL450 is driven with a 25MHz crystal for maximum performance. It generates CPU outputs of 100MHz. This device has a “low-drift” non-spread SAS/SRC PLL for use in systems that need to communicate across PCIe domains.
 
4 - Low-Power HCSL-compatible (LP-HCSL) CPU outputs
2 - LP-HCSL NS_SAS outputs
2 - LP-HCSL NS_SRC outputs
3 - LP-HCSL SRC outputs
1 - LP-HCSL DOT96 output
1 - 3.3V 48M output
5 - 3.3V PCI outputs
1 - 3.3V 14.318M output

Features

  • Integrated 85 ohm differential terminations; saves 48 resistors and 82mm² area
  • LP-HCSL output drivers; 40% typical power savings over 932SQ420
  • 0.5% down spread capable on CPU, SRC and PCI outputs; reduce EMI
  • Additional down spread amounts selectable via SMBus; maximal system flexibility
  • 64-pin TSSOP and VFQFPN packages; smallest board footprint
  • CPU, SRC, NS_SRC and NS_SAS cycle-cycle jitter <50ps
  • Output to output skew <50ps
  • Phase jitter: PCIe Gen2 <2.5ps rms
  • Phase jitter: PCIe Gen3 <0.6ps rms
  • Phase jitter: QPI <0.3ps rms
  • Phase jitter: NS-SAS <1.3ps rms using long period phase jitter method

Product Specification

Chipset ManufacturerClock Spec.100M SSC Outputs100M Non-SSC OutputsPCI 33.33M Outputs25M OutputsPower Consumption Typ (mW)App Jitter ComplianceSupply Voltage (V)Output TypeXtal Freq (MHz)Diff. Termination Resistors
IntelCK420BQL745769QPI, PCIe Gen3, PCIe Gen2, PCIe Gen13.30LVTTL, LP-HCSL25.000000

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
932SQL450BGLFActivePAG64TSSOP64CYesTubeCheck Availability
932SQL450BGLFTActivePAG64TSSOP64CYesReelCheck Availability
932SQL450BKLFActiveNLG64VFQFPN64CYesTrayCheck Availability
932SQL450BKLFTActiveNLG64VFQFPN64CYesReelCheck Availability

Documents

Technical Documentation

Title Other Languages Type Format File Size Datesort icon
Datasheets & Errata
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932SQL450 Datasheet Datasheet PDF 347 KB Oct 30, 2015
Apps Notes & White Papers
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AN-828 Termination - LVPECL Application Note PDF 229 KB Jul 5, 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-844 Termination - AC Coupling Clock Receivers Application Note PDF 82 KB 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-838 Peak-to-Peak Jitter Calculations Application Note PDF 32 KB May 7, 2014
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AN-815 Understanding Jitter Units Application Note PDF 476 KB Apr 24, 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-808 PCI Express/HCSL Termination Application Note PDF 54 KB Jan 15, 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# : A1602-01(R1) Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB Apr 14, 2016
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PCN# : A1602-01 Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB Feb 15, 2016
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PCN# : A1511-01(R1) Add SPEL India as Alternate Assembly Location Product Change Notice PDF 596 KB Jan 28, 2016
show all (6)
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PCN# : A1511-01 Add SPEL India as Alternate Assembly Location Product Change Notice PDF 544 KB Nov 13, 2015
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PCN# : TB1504-01R1 Qty per Reel Standardization for Selective Packages Product Change Notice PDF 95 KB Oct 22, 2015
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PCN# : TB1504-01 Qty per Reel Standardization for Selective Packages Product Change Notice PDF 50 KB Jul 21, 2015
Other
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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