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