NOTICE - The following device(s) are recommended alternatives:

The 9ZXL1251 meets the demanding requirements of the Intel DB1200ZL specification, including the critical low-drift requirements of Intel CPUs. It is pin  compatible to the 9ZXL1231 and integrates 24 termination resistors, saving 41mm² board area.


  • 85Ω Low-power push-pull HCSL outputs; eliminate 24 resistors, save 41mm² of area
  • Pin compatible to 9ZX21201 and 9ZXL1231; easy path to power and area savings
  • Space-saving 64-pin VFQFPN package
  • Fixed feedback path for 0 ps input-to-output delay
  • 9 Selectable SMBus Addresses; multiple devices can share the same SMBus Segment
  • 12 OE# pins; hardware control of each output
  • PLL or bypass mode; supports common and separate clock architectures
  • Selectable PLL bandwidth; minimizes jitter peaking in downstream PLL's
  • Spread Spectrum Compatible; tracks spreading input clock for low EMI
  • -40°C to +85°C device available; supports demanding environmental applications

Product Options

下单器件 ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
9ZXL1251AKILF Active NLG64D2 VFQFPN 64 I Yes Tray
9ZXL1251AKILFT Active NLG64D2 VFQFPN 64 I Yes Reel
9ZXL1251AKLF Active NLG64D2 VFQFPN 64 C Yes Tray
9ZXL1251AKLFT Active NLG64D2 VFQFPN 64 C Yes Reel


文档标题 他の言語 文档类型 文档格式 文件大小
9ZXL1251 Datasheet Datasheet PDF 373 KB
应用指南 &白皮书
AN-975 Cascading PLLs Application Note PDF 128 KB
AN-828 Termination - LVPECL Application Note PDF 229 KB
AN-891 Driving LVPECL, LVDS, CML, and SSTL Logic with IDT's "Universal" Low-Power HCSL Outputs Application Note PDF 354 KB
AN-879 Low-Power HCSL vs Traditional HCSL Application Note PDF 150 KB
AN-844 Termination - AC Coupling Clock Receivers Application Note PDF 82 KB
AN-842 Thermal Considerations in Package Design and Selection Application Note PDF 403 KB
AN-840 Jitter Specifications for Timing Signals Application Note PDF 349 KB
AN-827 Application Relevance of Clock Jitter Application Note PDF 1.06 MB
AN-815 Understanding Jitter Units Application Note PDF 476 KB
AN-805 Recommended Ferrite Beads Application Note PDF 38 KB
AN-808 PCI Express/HCSL Termination Application Note PDF 54 KB
PCN# : A1904-01 Add Greatek, Taiwan as an Alternate Assembly Facility Product Change Notice PDF 983 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# : A1403-03 Gold wire to Copper wire Product Change Notice PDF 42 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
PCI Express Timing Solutions Overview Overview PDF 275 KB
Timing Solutions Products Overview Overview PDF 4.11 MB
IDT Clock Generation Overview 日本語 Overview PDF 1.83 MB
IDT Clock Distribution Overview 日本語 Overview PDF 3.79 MB


文档标题 他の言語 文档类型 文档格式 文件大小
9ZXL1251 IBIS Model Model - IBIS ZIP 30 KB