NOTICE - The following device(s) are recommended alternatives:
9ZXL1251E - 12-Output DB1200ZL PCIe Clock Clock Buffer
Pin-to-pin with improved performance

The IDT9ZX21201 is a 12-output DB1200Z suitable for PCI Express® 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. In bypass mode, the IDT9ZX21201 can provide outputs up to 150MHz.


  • Cycle-to-cycle jitter <50ps
  • Output-to-output skew < 65 ps
  • Input-to-output delay variation <50ps
  • PCIe Gen3 phase jitter < 1.0ps RMS
  • QPI 9.6GT/s 12UI phase jitter < 0.2ps RMS
  • Space-saving 64-pin packages
  • Fixed feedback path/ 0ps input-to-output delay
  • 9 Selectable SMBus Addresses/Mulitple devices can share the same SMBus Segment
  • 12 OE# pins/Hardware control of each output
  • PLL or bypass mode/PLL can dejitter incoming clock
  • 100MHz or 133MHz PLL mode operation/supports PCIe and QPI applications
  • Selectable PLL bandwidth/minimizes jitter peaking in downstream PLL's
  • Spread Spectrum Compatible/tracks spreading input clock for low EMI
  • Software control of PLL Bandwidth and Bypass Settings/ PLL can dejitter incoming clock (B Rev only)


器件号 Part Status Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
Active VFQFPN 64 C 是的 Tray
Active VFQFPN 64 C 是的 Reel
Active VFQFPN 64 C 是的 Tray
Active VFQFPN 64 C 是的 Reel


文档标题 其他语言 类型 文档格式 文件大小 日期
9ZX21201 Datasheet 数据手册 PDF 412 KB
应用指南 &白皮书
AN-975 Cascading PLLs 应用文档 PDF 255 KB
AN-828 Termination - LVPECL 应用文档 PDF 322 KB
AN-844 Termination - AC Coupling Clock Receivers 应用文档 PDF 170 KB
AN-842 Thermal Considerations in Package Design and Selection 应用文档 PDF 495 KB
AN-840 Jitter Specifications for Timing Signals 应用文档 PDF 442 KB
AN-834 Hot-Swap Recommendations 应用文档 PDF 153 KB
AN-827 Application Relevance of Clock Jitter 应用文档 PDF 1.15 MB
AN-815 Understanding Jitter Units 应用文档 PDF 565 KB
AN-808 PCI Express/HCSL Termination 应用文档 PDF 137 KB
AN-805 Recommended Ferrite Beads 应用文档 PDF 121 KB
PCN# : A1904-01 Add Greatek, Taiwan as an Alternate Assembly Facility 产品变更通告 PDF 983 KB
PCN# : A1611-02 Add JCET China as Alternate Assembly and Change of Material Set at Alternate Assembly Location 产品变更通告 PDF 583 KB
PCN# : TB1504-01R1 Qty per Reel Standardization for Selective Packages 产品变更通告 PDF 95 KB
PCN# : TB1504-01 Qty per Reel Standardization for Selective Packages 产品变更通告 PDF 50 KB
PCN# : A1311-03R1 Alternate Assembly Locations 产品变更通告 PDF 43 KB
PCN# : A1311-03 Alternate Assembly Locations 产品变更通告 PDF 140 KB
PCN# : A1305-01 Gold Wire to Copper Wire 产品变更通告 PDF 148 KB
9ZX21201B IBIS Model 模型 - IBIS ZIP 12 KB
9ZX21201A IBIS Model 模型 - IBIS ZIP 12 KB
Clock Distribution Overview 日本語 概览 PDF 217 KB
9ZX21201 Reference Schematic 原理图 PDF 42 KB
IDT Clock Generation Overview 日本語 概览 PDF 1.83 MB
9ZX21201 Block Diagram 方框图 PNG 30 KB