The 9ZXL1251E is a second-generation, enhanced performance DB1200ZL differential buffer. The part is a pin-compatible upgrade to the 9ZXL1251A, while offering much improved phase jitter performance and increased system security features. A fixed external feedback maintains low drift for critical QPI/UPI applications.

Features

  • LP-HCSL outputs with 85Ω Zout; eliminate 48 resistors, save 82mm² of area
  • PCIe Gen 1–5 compliance
  • 12 OE# pins; hardware control of each output
  • 9 selectable SMBus addresses; multiple devices can share the same SMBus segment
  • Selectable PLL BW; minimizes jitter peaking in cascaded PLL topologies
  • Hardware/SMBus control of PLL bandwidth and bypass; change mode without power cycle
  • Spread spectrum compatible; tracks spreading input clock for EMI reduction
  • 100MHz and 133.33MHz PLL Mode; UPI and legacy QPI support
  • 9 x 9 mm 64-VFQFPN package; small board footprint

Product Options

注文可能な製品ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type 購入/サンプル
9ZXL1251EKILF Active NLG64P2 VFQFPN 64 I Yes Tray
Availability
9ZXL1251EKILFT Active NLG64P2 VFQFPN 64 I Yes Reel
Availability

技術資料

タイトル 他の言語 タイプ 形式 サイズ 日付
データシート
9ZXL04x1E-9ZXL06x1E-9ZXL08x1E-9ZXL12x1E Family Datasheet Datasheet PDF 527 KB
アプリケーションノート、ホワイトペーパー
AN-1001 Combining PhiClock™ and 9ZXL1951D for PCIe Gen4/5 Application Note PDF 103 KB
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 / PDN
PCN# : A1904-01 Add Greatek, Taiwan as an Alternate Assembly Facility Product Change Notice PDF 983 KB
その他資料
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) English Overview PDF 1.83 MB
IDT Clock Distribution Overview (日本語) English Overview PDF 3.79 MB

ソフトウェア/ツール

タイトル 他の言語 タイプ 形式 サイズ 日付
9ZXL1251E IBIS Model Model - IBIS ZIP 21 KB

Evaluation Boards

Part Number Title 昇順で並び替え
EVK9ZXL1951D Evaluation Kit for 19-Output DB1900Z for PCIe Gen1-4 and QPI/UPI