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Description

The 9QXL2000B is a 20-output very-low-additive phase jitter

fanout buffer for PCIe Gen4 and Gen5. It offers integrated

terminations for 85Ω transmission lines.

PCIe Clocking Architectures

? Common Clocked (CC)

? Independent Reference (IR) with and without spread spectrum

Typical Applications

? Servers

? Storage

? Networking

? SSDs

Features

? Low-Power HCSL (LP-HCSL) 85Ω outputs eliminate 80

resistors, saving 130mm2 of area

? Low-Power HCSL (LP-HCSL) outputs reduce device power

consumption by 50

? 8 OE# pins configurable to control up to 20 outputs

? 9 selectable SMBus addresses

? Spread spectrum compatible

? 10 × 10 mm 72-VFQFPN package

Output Features

? 20 Low-Power HCSL (LP-HCSL) 85Ω output pairs

Key Specifications

? Output-to-output skew: < 50ps

? Additive phase jitter: DB2000Q filter < 40fs rms

? Additive Phase jitter: PCIe Gen4 filter < 40fs rms

? Additive Phase jitter: PCIe Gen5 filter < 20fs rms

? DB2000Q v1.1 pinout