8 Application and Implementation

Note

Information in the following applications sections is not part of the TI component specification,

and TI does not warrant its accuracy or completeness. TI’s customers are responsible for

determining suitability of components for their purposes, as well as validating and testing their design

implementation to confirm system functionality.

8.1 Application Information

The purpose of the TUSB211A is to restore the signal integrity of a USB High-speed channel up to the USB

connector. The loss in signal quality stems from reduced channel bandwidth due to high loss PCB trace and

other components that contribute a capacitive load. This can cause the channel to fail the USB near end eye

mask. Proper use of the TUSB211A can help to pass this eye mask.

A secondary purpose is to use the CD pin of the TUSB211A to control other blocks on the customer platform, if

so desired.

8.2 Typical Application

A typical application for TUSB211A is shown in Figure 8-1. In this setup, D2P and D2M face the USB connector

while D1P and D1M face the USB host. The orientation may be reversed [that is, D2 faces transceiver and D1

faces connector].

100 nF

R

EQ

Supply

+3.3 V or +5 V

1 µF

(op onal)

100 nF

USB

Host or Hub

CON_D2P

CON_D2N

USB_D1P

USB_D1N

Copyright © 2023, Texas Instruments Incorporated

RSTN

EQ

D2P

D2M

GND

VCC

D1M

D1P

Ferrite Bead

100

at 100 MHz

Connect

D1P and D2P

Connect

D1M and D2M

Figure 8-1. TUSB211A Reference Schematic

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TUSB211A

SLLSFW2 – SEPTEMBER 2023

Copyright © 2023 Texas Instruments Incorporated

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Product Folder Links: TUSB211A