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9ZXL1550 Block Diagram
9ZXL1550 Pinout

9ZXL1550

15-output DB1900Z Derivative

The 9ZXL1550 is a DB1900Z derivative buffer utilizing Low-Power HCSL (LP-HCSL) outputs to increase edge rates on long traces, reduce board space, and reduce power consumption more than 50% from the original 9ZX21501. It is pin-compatible to the 9ZXL1530 and has the output terminations integrated.It is suitable for PCI-Express Gen1/2/3 or QPI/UPI applications, and uses a fixed external feedback to maintain low drift for demanding QPI/UPI
applications.

Features

  • LP-HCSL outputs; up to 90% IO power reduction, better signal integrity over long traces
  • Direct connect to 85Ω transmission lines; eliminates 60 termination resistors, saves 103mm² area
  • Pin compatible to the 9ZXL1530; easy upgrade to reduced board space
  • 64-VFQFPN package; smallest 15 output Z-buffer
  • Fixed feedback path: ~ 0ps input-to-output delay
  • 9 Selectable SMBus addresses; multiple devices can share same SMBus segment
  • Separate VDDIO for outputs; allows maximum power savings
  • PLL or bypass mode; PLL can dejitter incoming clock
  • 100MHz & 133.33MHz PLL mode; legacy QPI/UPI support
  • Selectable PLL BW; minimizes jitter peaking in downstream PLL’s
  • Spread spectrum compatible; tracks spreading input clock for EMI reduction
  • SMBus Interface; unused outputs can be disabled
  • 15 - LP-HCSL Differential Output Pairs w/integrated terminations (Zo = 85Ω)

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
9ZXL1550BKLFActiveNLG64P2VFQFPN64CYesTrayCheck Availability
9ZXL1550BKLFTActiveNLG64P2VFQFPN64CYesReelCheck Availability

Documents

Technical Documentation

Title Other Languages Type Format File Size Datesort icon
Datasheets & Errata
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9ZXL1550 Datasheet Datasheet PDF 295 KB Nov 20, 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
show all (10)
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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-834 Hot-Swap Recommendations Application Note PDF 67 KB May 6, 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-805 Recommended Ferrite Beads Application Note PDF 38 KB Jan 15, 2014
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AN-808 PCI Express/HCSL Termination Application Note PDF 54 KB Jan 15, 2014
PCNs & PDNs
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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
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PCN# : A1311-03R1 Alternate Assembly Locations Product Change Notice PDF 43 KB Feb 16, 2014
show all (5)
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PCN# : A1311-03 Alternate Assembly Locations Product Change Notice PDF 140 KB Dec 3, 2013
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PCN# : A1305-01 Gold Wire to Copper Wire Product Change Notice PDF 148 KB Jul 29, 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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9ZXL1550 IBIS Model Model - IBIS ZIP 50 KB Aug 23, 2016