Introduction - Texas Instruments TUSB8040AEVM User Manual

The TI TUSB8040A evaluation module is a functional board design of a single device that implements
both a USB 3.0 hub and a USB 2.0 hub. The EVM can support both SuperSpeed (SS) and USB 2.0 (HS,
FS, and LS) operation on its USB ports. This EVM is intended for use in evaluating system compatibility,
developing optional EEPROM firmware, and validating interoperability. This EVM also acts as a hardware
reference design for any implementation of the TUSB8040A.
Upon request, layout files for the EVM can be provided to illustrate techniques used to route the
differential pairs, use of split power planes, placement of filters and other critical components, and
methods used to achieve length matching of critical signals.
A Note the EVM dimensions of 3" x 4" accommodates various lab test components, actual production implementations
can be much smaller. Also, the TUSB8040AEVM is laid out to accept either a TUSB8040A unit or a socket. This
socket functionality would not need to be duplicated on a production implementation.
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SLLU163 – May 2012
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Figure 1. TUSB8040AEVM Top Layer Layout
Copyright © 2012, Texas Instruments Incorporated
SLLU163 – May 2012

Introduction

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Introduction