SLAT161 June   2022 HD3SS3411 , TMUXHS4412

 

  1.   Abstract
  2.   Trademarks
  3. 1Introduction
  4. 2What is PCI Express (PCIe)?
    1. 2.1 PCIe Link
    2. 2.2 PCIe Clocking Architectures
      1. 2.2.1 Common Reference Clock
      2. 2.2.2 Data Reference Clock
      3. 2.2.3 Separate Reference Clock
    3. 2.3 PCIe Reference Clock Specification
  5. 3Reference Clock Measurement With TI Multiplexers
    1. 3.1 Test Setup and Procedure
      1. 3.1.1 Test Setup
      2. 3.1.2 Test Procedure
    2. 3.2 Test Report
      1. 3.2.1 Test Result With Clock Source
      2. 3.2.2 Test Result With HD3SS3411
      3. 3.2.3 Test Result With TMUXHS4412
      4. 3.2.4 Test Result With TMUXHS221
  6. 4Summary

1 Introduction

PCI Express (PCIe) is a serial point-to-point interconnect standard developed by the Peripheral Component Interconnect Special Interest Group (PCI-SIG). The PCIe standard has been widely adopted in a broad range of applications including desktop personal computers, servers, storage devices, embedded computing, and networking and communications. One of the key advantages of using PCIe is its scalable data bandwidth and flexible clocking solutions. This application report will explore some of the standard clocking architectures for PCIe first and a reference clock test result with TI high speed multiplexers will be presented and discussed later.