SLLSER3F December   2015  – December 2023 TUSB542

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1  Absolute Maximum Ratings
    2. 5.2  ESD Ratings
    3. 5.3  Recommended Operating Conditions
    4. 5.4  Thermal Information
    5. 5.5  Electrical Characteristics, Power Supply Currents
    6. 5.6  Electrical Characteristics, DC
    7. 5.7  Electrical Characteristics, Dynamic
    8. 5.8  Electrical Characteristics, AC
    9. 5.9  Timing Requirements
    10. 5.10 Switching Characteristics
    11. 5.11 Typical Characteristics
      1. 5.11.1 1-Inch Pre Channel
      2. 5.11.2 24-Inch Pre Channel
      3. 5.11.3 32-Inch Pre Channel
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Receiver Equalization
      2. 6.3.2 De-Emphasis Control and Output Swing
      3. 6.3.3 Automatic LFPS Detection
      4. 6.3.4 Automatic Power Management
    4. 6.4 Device Functional Modes
      1. 6.4.1 Disconnect Mode
      2. 6.4.2 U Modes
        1. 6.4.2.1 U0 Mode
        2. 6.4.2.2 U2/U3 Mode
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Applications, USB Type-C Port SS MUX
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
      3. 7.2.3 Application Curves
    3. 7.3 Typical Application: Switching USB SS Host or Device Ports
      1. 7.3.1 Design Requirements
      2. 7.3.2 Detailed Design Procedure
      3. 7.3.3 Application Curves
    4. 7.4 Power Supply Recommendations
    5. 7.5 Layout
      1. 7.5.1 Layout Guidelines
      2. 7.5.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Receiving Notification of Documentation Updates
    2. 8.2 Support Resources
    3. 8.3 Trademarks
    4. 8.4 Electrostatic Discharge Caution
    5. 8.5 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

3 Description

The TUSB542 is a dual channel USB 3.1 Gen1
(5Gbps), also known as USB-C, re-driver supporting systems with USB Type-C connectors. The device offers signal conditioning plus the ability to switch the USB SS signals for the USB Type-C flippable connector. The TUSB542 can be controlled through the SEL pin by an external Configuration Channel Logic Controller to properly mux the signals.

The TUSB542 incorporates receiver equalization and transmitter de-emphasis to maintain signal integrity on both transmit and receive data paths. The receiver equalization offers multiple gain settings to overcome channel degradation from insertion loss and inter-symbol interference. To compensate for downstream transmission line losses, the output driver supports de-emphasis configuration. Additionally, automatic LFPS de-emphasis control allows for full compliance.

The TUSB542 offers low power consumption on a 1.8V supply with its ultra-low power architecture. The re-driver supports low power modes, which further reduce the idle power consumption.

The USB Type-C redriver is available in a small ultra-thin package, which is an excellent choice for many portable applications.

Package Information
PART NUMBER PACKAGE(1) PACKAGE SIZE(2)
TUSB542 RWQ (X2QFN, 18) 2.4mm × 2mm
(1) For more information, see Section 10
(2) The package size (length × width) is a nominal value and includes pins, where applicable.
GUID-09B9FAA5-A347-4E87-8680-55FB3C158458-low.gifSimplified Schematic
GUID-9ACA2156-25A2-469E-9B41-31EEB9558FAB-low.pngSample Application