NOTICE - The following device(s) are recommended alternatives:
9ZXL1550D - 15-Output DB1900ZL PCIe Zero-Delay/Fanout Clock Buffer
Improved performance, reduced external components

The 9ZX21501 is an Intel™ DB1900Z-compatible differential buffer suitable for PCIExpress Gen3 or QPI applications. The part is backwards compatible to PCIe Gen1 and Gen2. A fixed external feedback maintains low drift for critical QPI applications.

Features

  • Fifteen 0.7V HCSL differential output pairs
  • Phase jitter: PCIe Gen3 < 1ps rms
  • Phase jitter: PCIe Gen2 < 3.1ps rms
  • Phase jitter: PCIe Gen1 < 86ps peak to peak
  • Phase jitter: QPI 9.6GT/s < 0.2ps rms
  • Supports zero delay buffer mode and fanout mode
  • Bandwidth programming available
  • 9 selectable SMBus addresses
  • 7 OE# pins; 90–140MHz operation in PLL mode
  • 33–150MHz operation in Bypass mode

Product Options

Orderable Part ID Part Status Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
9ZX21501BKLF
Active VFQFPN 64 C Yes Tray
Availability
9ZX21501BKLFT
Active VFQFPN 64 C Yes Reel
Availability
9ZX21501CKLF
Active VFQFPN 64 C Yes Tray
Availability
9ZX21501CKLFT
Active VFQFPN 64 C Yes Reel
Availability

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
9ZX21501B Datasheet Datasheet PDF 310 KB
9ZX21501C Datasheet Datasheet PDF 302 KB
Application Notes & White Papers
AN-975 Cascading PLLs Application Note PDF 255 KB
AN-828 Termination - LVPECL Application Note PDF 322 KB
AN-844 Termination - AC Coupling Clock Receivers Application Note PDF 170 KB
AN-842 Thermal Considerations in Package Design and Selection Application Note PDF 495 KB
AN-840 Jitter Specifications for Timing Signals Application Note PDF 442 KB
AN-834 Hot-Swap Recommendations Application Note PDF 153 KB
AN-836 Differential Input to Accept Single-ended Levels Application Note PDF 120 KB
AN-835 Differential Input with VCMR being VIH Referenced Application Note PDF 160 KB
AN-827 Application Relevance of Clock Jitter Application Note PDF 1.15 MB
AN-815 Understanding Jitter Units Application Note PDF 565 KB
AN-808 PCI Express/HCSL Termination Application Note PDF 137 KB
AN-805 Recommended Ferrite Beads Application Note PDF 121 KB
PCNs & PDNs
PCN# : A1904-01 Add Greatek, Taiwan as an Alternate Assembly Facility Product Change Notice PDF 983 KB
PCN# : A1611-02 Add JCET China as Alternate Assembly and Change of Material Set at Alternate Assembly Location Product Change Notice PDF 583 KB
PCN# : TB1504-01R1 Qty per Reel Standardization for Selective Packages Product Change Notice PDF 95 KB
PCN# : TB1504-01 Qty per Reel Standardization for Selective Packages Product Change Notice PDF 50 KB
PCN# : A1311-03R1 Alternate Assembly Locations Product Change Notice PDF 43 KB
PCN# : A1311-03 Alternate Assembly Locations Product Change Notice PDF 140 KB
PCN# : A1305-01 Gold Wire to Copper Wire Product Change Notice PDF 148 KB
Downloads
9ZX21501C IBIS Model Model - IBIS ZIP 12 KB
9ZX21501B IBIS Model Model - IBIS ZIP 11 KB
Other
Clock Distribution Overview 日本語 Overview PDF 217 KB
IDT Clock Generation Overview 日本語 Overview PDF 1.83 MB
9ZX21501 Block Diagram Block Diagram PNG 25 KB