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9ZXL1950 Block Diagram
9ZXL1950 Pinout

9ZXL1950

19-output DB1900Z Low-Power Derivative

The 9ZXL1950 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 9ZX21901.It is pin-compatible to the 9ZXL1930 and fully integrates the output terminations. It is pin-compatible to the 9ZXL1930 and fully integrates the output terminations. 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

  • 19 - LP-HCSL Differential Output Pairs w/integrated terminations (Zo = 85Ω)
  • LP-HCSL outputs; up to 90% IO power reduction, better signal integrity over long traces
  • Direct connect to 85Ω transmission lines; eliminates 76 termination resistors, saves 130mm² area
  • Pin compatible to the 9ZXL1930; easy upgrade to reduced board space
  • 72-VFQFPN package; smallest 19 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 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

Product Specification

App Jitter ComplianceCore Voltage (V)Diff. Output SignalingInput Freq (MHz)Output Freq Range (MHz)Output Voltage (V)Power Consumption Typ (mW)Supply Voltage (V)
PCIe Gen2, PCIe Gen3, QPI, PCIe Gen13.3LP-HCSL33.000000 - 150.00000033.000000 - 150.0000000.76141.05 - 3.30

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
9ZXL1950BKLFActiveNLG72P1VFQFPN72CYesTrayCheck Availability
9ZXL1950BKLFTActiveNLG72P1VFQFPN72CYesReelCheck Availability

Documents

Technical Documentation

Title Other Languages Type Format File Size Datesort icon
Datasheets & Errata
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9ZXL1950 Datasheet Datasheet PDF 290 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# : A1511-01(R1) Add SPEL India as Alternate Assembly Location Product Change Notice PDF 596 KB Jan 28, 2016
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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
show all (8)
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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
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PCN# : A1311-03 Alternate Assembly Locations Product Change Notice PDF 140 KB Dec 3, 2013
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PCN# : A1308-01 Add ASEK as Alternate Assembly for VFQFPN-72 Product Change Notice PDF 103 KB Aug 18, 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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9ZXL1950 IBIS Model Model - IBIS ZIP 50 KB Aug 22, 2016