Texas Instruments TUSB1142 User Manual
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Texas Instruments TUSB1142 User Manual

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User's Guide
TUSB1142 EVM User's Guide
The TUSB1142 is a 10 Gbps USB 3.2 linear redriver with 1:2 DeMUX or 2:1 Mux function for USB Type-C
applications. The TUSB1142 is intended to reside between a USB Type-A Host and a USB Type-C receptacle
or between a USB device and a USB Type-C receptacle. This document describes how to use and configure
the TUSB1142EVM along with recommendations for system hardware implementation. These recommendations
are only guidelines and it is the designer's responsibility to consider all system characteristics and requirements.
Engineers should refer to the data sheet for technical details such as device operation, terminal description, and
so forth.
1
Overview..................................................................................................................................................................................2
1.1 What is the TUSB1142 EVM?............................................................................................................................................
1.3 What Does the EVM Look Like?........................................................................................................................................
Configuration.........................................................................................................................................................3
2.1 Power.................................................................................................................................................................................
2.2 Configuration Jumpers.......................................................................................................................................................
2.3 CEQ Configuration.............................................................................................................................................................
Configuration...........................................................................................................................................................5
2.5 Local I2C Access...............................................................................................................................................................
Guide....................................................................................................................................................................7
4
Schematics..............................................................................................................................................................................8
Trademarks
USB Type-C
™
is a trademark of USB Implementers Forum.
All trademarks are the property of their respective owners.
SLLU350 - APRIL 2022
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ABSTRACT

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EVM?..........................................................................................................................2
Copyright © 2022 Texas Instruments Incorporated
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TUSB1142 EVM User's Guide
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Summary of Contents for Texas Instruments TUSB1142

  • Page 1: Table Of Contents

    TUSB1142 EVM User's Guide ABSTRACT The TUSB1142 is a 10 Gbps USB 3.2 linear redriver with 1:2 DeMUX or 2:1 Mux function for USB Type-C ™ applications. The TUSB1142 is intended to reside between a USB Type-A Host and a USB Type-C receptacle or between a USB device and a USB Type-C receptacle.

  • Page 2: Overview

    1.1 What is the TUSB1142 EVM? The TUSB1142EVM is a PCB created to help for customers to evaluate the TUSB1142. The EVM has a USB Type-B receptacle and a USB Type-C receptacle. The user of the EVM can insert a USB 3 Micro-B cable to the TUSB1142EVM board then connect to a USB 3 Gen 1/2 motherboard or system with a USB Type-A receptacle.

  • Page 3: Hardware Configuration

    Multiple jumpers are provided on the EVM for configuration of TUSB1142 and also for probe points. The following is a list of 4-level jumpers which are used to configure the TUSB1142: JMP6, JMP7, JMP8, JMP9, JMP10, JMP11, JMP12, and JMP13. The jumper position to select between the different levels is detailed in 4-level Configuration Jumper Settings Table.
  • Page 4 JMP5 Short 1 to 2 AEQENZ/SDA. If TUSB1142 is configured for I2C mode (MODE pin (JMP13)) is floating, then jumper is data for local I2C. If TUSB1142 is configured for pin-strap mode, then jumper selects whether AEQ is enabled or not.

  • Page 5: Ceq Configuration

    EQ Gain at 5 GHz minus Register(s): SSEQ1_SEL or SSEQ2_SEL SSEQ1 PIN LEVEL SSEQ0 PIN LEVEL Gain at 100 MHz Equalization Setting # (dB) Lowest Setting Highest Setting SLLU350 – APRIL 2022 TUSB1142 EVM User's Guide Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated...

  • Page 6: Local I2C Access

    Access to TUSB1142’s local I2C signals is provided through the JMP4 and JMP5 connectors. The TUSB1142 supports either 1.8 V and 3.3 V LVCMOS levels. The TUSB1142 VIO_SEL pin (JMP13) is used to select which voltage level is used. It is important that the I2C signalling levels meet the TUSB1142 LVCMOS levels when I2C interface is accessed through the connector.

  • Page 7: Quick Start Guide

    The instructions below assume the EVM is configured for I2C mode and is powered from the barrel jack. 1. Insertion +5 V DC Power source into barrel jack (J1). 2. Configure TUSB1142 through the I2C interface, JMP4, and JMP5. 3. Insert the Micro-B USB cable into the Micro-B receptacle (J1) and connect the Type-A receptacle of the motherboard to the EVM through the same cable.

  • Page 8: Schematics

    Schematics www.ti.com 4 Schematics TUSB1142 EVM User's Guide SLLU350 – APRIL 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated...
  • Page 9 Schematics SLLU350 – APRIL 2022 TUSB1142 EVM User's Guide Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated...
  • Page 10 Schematics www.ti.com TUSB1142 EVM User's Guide SLLU350 – APRIL 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated...
  • Page 11 TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable warranties or warranty disclaimers for TI products. TI objects to and rejects any additional or different terms you may have proposed. IMPORTANT NOTICE Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2022, Texas Instruments Incorporated...

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