Texas Instruments TUSB213 User Manual
User's Guide
SLLU264–August 2017
TUSB213 Evaluation Module
This is the user guide for the evaluation module (EVM) of the TUSB213. The purpose of this user guide is
to facilitate an easy evaluation process of our TUSB213 USB High-Speed signal conditioner.
The contents of this user’s guide are meant to provide an overview of the TUSB213, which includes
highlighting its key features, operating conditions, and how to setup this EVM for use in a system level
evaluation.
The construction of the TUSB213 EVM also serves as a reference design that can be easily modified for
any intended application. Target applications include cell phones, desktop or notebook computers, docking
stations, TVs, and active cables. Schematic and layout information is included at the end of this manual.
Contents
1 Introduction ................................................................................................................... 2
2 TUSB213 EVM Configuration .............................................................................................. 3
2.1 TUSB213 EVM Kit Contents ...................................................................................... 3
2.2 Description of EVM Board ......................................................................................... 3
2.3 Configuration Switches............................................................................................. 3
2.4 Selecting Equalization and Boost Level for TUSB213 ......................................................... 4
3 EVM Operation............................................................................................................... 5
4 USB 2.0 High-Speed Eye Diagram Testing.............................................................................. 5
4.1 Test Procedure Document Links.................................................................................. 5
5 PCB Construction............................................................................................................ 6
5.1 TUSB213 EVM Board Schematics ............................................................................... 6
5.2 TUSB213 EVM Material Listing................................................................................... 7
1 Functional System Level Block Diagram ................................................................................. 2
2 TUSB213 EVM .............................................................................................................. 3
3 TUSB213 EVM Schematic.................................................................................................. 6
1 TUSB213 EVM Jumper Descriptions ..................................................................................... 4
2 EQ and Boost Setting Based on Cable Length.......................................................................... 4
3 TUSB213 EVM Bill of Materials............................................................................................ 7
Trademarks
All trademarks are the property of their respective owners.
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List of Figures
List of Tables
Copyright © 2017, Texas Instruments Incorporated
TUSB213 Evaluation Module
1
USB 3.1 Type-Wo
USB 3.1 Type-Wo
USB 3.1 Type-B Receptacle
USB 3.1 Device/Sink (External Hard Drive, Thumb Drive, and so forth)
USB 3.1 Type-B Receptacle (Input)
USB 3.1 Type-A Receptacle (Output)
TUSB213 EVM
USB 3.1 Host/Source (Desktop, Laptop, Docking Station, and so forth)
USB 3.1 Type-A Receptacle
Copyright © 2017, Texas Instruments Incorporated
Introduction
1 Introduction
The TUSB213 is a USB high-speed (HS) signal conditioner, designed to compensate for ISI signal loss in
a transmission channel.
The TUSB213 design is agnostic to USB low and full-speed signals and does not affect full-speed (FS)
and low-speed (LS) signaling. High-speed signals are compensated along with programmable DC gain to
fine-tune device performance to optimize the HS signals at the connector.
This EVM was designed to be used as a medium connection between a USB host and a USB device. The
interface to the EVM consists of a USB 3.1 Type A receptacle, and a USB 3.1 Type B receptacle.
Therefore, in order to connect the EVM to your system set up, you will most likely need 2 USB 3.1
Standard Type A → B cables. Your test setup should look similar to Figure 1:
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Figure 1. Functional System Level Block Diagram
2
TUSB213 Evaluation Module
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2 TUSB213 EVM Configuration
2.1 TUSB213 EVM Kit Contents
This EVM kit contains the following items:
• TUSB213 EVM board
• This user’s manual
2.2 Description of EVM Board
The TUSB213 EVM is designed to provide easy evaluation of the device. It is also meant to serve as a
reference design to show a practical example of how to use the device in a mass-production system.
Figure 2 highlights the jumpers and switch installed on this EVM and Table 1 highlights their functionality
and configuration.
TUSB213 EVM Configuration
2.3 Configuration Switches
The TUSB213 has three switches to facilitate configuration changes. Changing these switch settings
without a complete understanding of the result is not recommended. Configuration inputs are only read by
the TUSB213 during power on reset or after de-asserting the RSTN pin, changing these switch settings
while the EVM is powered on will have no effect. Please refer to the device data sheet for detailed pin
descriptions and functionality along with EVM schematic for additional information.
The switch definitions are as follows:
• SW1 RSTN Pushbutton Switch:
– Pushbutton to place TUSB213 device in RESET
– Release to de-assert RESET
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Figure 2. TUSB213 EVM
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TUSB213 Evaluation Module
3
TUSB213 EVM Configuration
• SW2 EQ:
1. Sets TUSB213 to EQ1 Level
2. Sets TUSB213 to EQ3 Level (Maximum)
3. Sets TUSB213 to EQ2 Level
Shunt across J2 Sets TUSB213 to EQ0 Level (Minimum)
• SW3 Boost:
1. VCC (High Boost)
2. NC (Mid Boost)
3. GND (Low Boost)
Jumper Functionality and Configuration
J1 213_VCC
J2 EQ
J3 SDA
J4 SCL and CD
J5 Boost and ENA_HS
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Table 1. TUSB213 EVM Jumper Descriptions
spac1 = TUSB213 VCC
spac2 = GND
spac1 = EQ
spac2 = GND
spac1 = SDA
spac2 = GND
spac1 = SCL and CD
spac2 = GND
spac1 = Boost and ENA_HS
spac2 = GND
2.4 Selecting Equalization and Boost Level for TUSB213
The primary purpose of the TUSB213 is to restore the signal integrity of a USB high-speed channel up to
the USB connector. The platform goal is to pass the USB Near-End or Far-End Eye Mask with the
TUSB213 in the best location.
A typical use case is to place the TUSB213 close to the USB connector on a host platform in order to
pass Near-End Eye Mask testing. This includes systems where the USB connector may be placed at the
far-end of a cable.
Typical EQ and Boost recommendations based on cable length (28-AWG USB cable).
Table 2. EQ and Boost Setting Based on Cable Length
Cable Length TUSB213 EQ TUSB213 Boost
0 m–1 m EQ1 Low
1 m–2 m EQ2 Mid
2 m–3 m EQ2 Mid
3 m–5 m EQ3 High
4
TUSB213 Evaluation Module
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