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

Features

  • Low-Power HCSL outputs with Zo = 85Ω; save power and board space - no termination resistors required. Ideal for blade servers
  • Space-saving 40-pin VFQFPN package
  • Fixed feedback path for 0ps input-to-output delay
  • 6 OE# pins; hardware control of each output
  • PLL or bypass mode; PLL can de-jitter incoming clock
  • Selectable PLL bandwidth; minimizes jitter peaking in downstream PLLs
  • Spread spectrum compatible; tracks spreading input clock for low EMI
  • Cycle-to-Cycle jitter < 50ps
  • Output-to-Output skew < 65ps
  • Input-to-Output delay variation < 50ps
  • PCIe Gen 3 phase jitter < 1.0ps RMS
  • QPI/UPI 9.6GT/s 12UI phase jitter < 0.2ps RMS

Description

The 9ZXL0651 is a low-power 6-output differential buffer that meets all the performance requirements of the Intel DB1200Z specification. It consumes 50% less power than standard HCSL devices and has internal terminations to allow direct connection to 85Ω transmission lines. It is suitable for PCI Express Gen 1/2/3 or QPI/UPI applications and uses a fixed external feedback to maintain low drift for demanding QPI/UPI applications.

Parameters

Attributes Value
Chipset Manufacturer Intel
Clock Spec. DB800ZL v1.1 Derivative
Diff. Outputs 6
Diff. Output Signaling LP-HCSL
Output Enable (OE) Pins 6
Output Freq Range (MHz) 25 - 150
Diff. Inputs 1
Diff. Input Signaling HCSL
Accepts Spread Spec Input Yes
Power Consumption Typ (mW) 445
Advanced Features HW PLL mode control
App Jitter Compliance PCIe Gen1, PCIe Gen2, PCIe Gen3, QPI
Package Area (mm²) 25

Package Options

Pkg. Type Pkg. Dimensions (mm) Lead Count (#) Pitch (mm)
VFQFPN 5.0 x 5.0 x 0.9 40 0.4

Applications

  • Buffer for Romley, Grantley and Purley Servers, SSDs, and PCIe

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