SLLSFL2A April   2022  – May 2024 TUSB1142

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  Power Supply Characteristics
    6. 5.6  Control I/O DC Electrical Characteristics
    7. 5.7  USB Electrical Characteristics
    8. 5.8  Timing Requirements
    9. 5.9  Switching Characteristics
    10. 5.10 Typical Characteristics
  7. 6 Parameter Measurement Information
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 4-Level Inputs
      2. 7.3.2 USB Receiver Linear Equalization
        1. 7.3.2.1 Linear EQ Configuration
        2. 7.3.2.2 Full Adaptive Equalization
        3. 7.3.2.3 Fast Adaptive Equalization
      3. 7.3.3 USB Transmitter
        1. 7.3.3.1 Linearity VOD
        2. 7.3.3.2 Limited VOD
        3. 7.3.3.3 Transmit Equalization (Limited Redriver Mode Only)
      4. 7.3.4 USB 3.2 2:1 MUX Description
      5. 7.3.5 USB Polarity Inversion
      6. 7.3.6 Receiver Detect Control
    4. 7.4 Device Functional Modes
      1. 7.4.1 MODE Pin
      2. 7.4.2 Rx EQ Configuration in Pin-Strap Mode
      3. 7.4.3 USB 3.2 Power States
      4. 7.4.4 Disabling U1 and U2
    5. 7.5 Programming
      1. 7.5.1 Pseudocode Examples
        1. 7.5.1.1 Fixed EQ with Linear Redriver Mode
        2. 7.5.1.2 Fixed EQ with Limited Redriver Mode
        3. 7.5.1.3 Fast AEQ with Linear Redriver Mode
        4. 7.5.1.4 Fast AEQ with Limited Redriver Mode
        5. 7.5.1.5 Full AEQ with Linear Redriver Mode
        6. 7.5.1.6 Full AEQ with Limited Redriver Mode
      2. 7.5.2 TUSB1142 I2C Address Options
      3. 7.5.3 TUSB1142 I2C Target Behavior
    6. 7.6 Register Map
      1. 7.6.1 TUSB1142 Registers
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 USB SSTX Receiver Configuration
        2. 8.2.2.2 USB CRX1/2 Receiver Configuration
          1. 8.2.2.2.1 Fixed Equalization
          2. 8.2.2.2.2 Full Adaptive Equalization
          3. 8.2.2.2.3 Fast Adaptive Equalization
        3. 8.2.2.3 ESD Protection
      3. 8.2.3 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Receiving Notification of Documentation Updates
    2. 9.2 Support Resources
    3. 9.3 Trademarks
    4. 9.4 Electrostatic Discharge Caution
    5. 9.5 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

3 Description

The TUSB1142 is a 10Gbps USB 3.2 linear redriver with 1:2 DeMUX or 2:1 Mux function for USB-C® applications. The TUSB1142 is intended to reside between a Host and a USB-C receptacle or between a USB device and a USB-C receptacle. The TUSB1142 supports both USB 3.2 Gen2 (10Gbps) and Gen1 (5Gbps) as well as USB 3.2 low power states (Disconnect, U1, U2, and U3).

The TUSB1142 incorporates an adaptive receiver equalization (AEQ) feature. The AEQ feature automatically determines what the best ISI compensation settings are between the TUSB1142 and USB device plugged into the USB connector resulting in improved interoperability.

The TUSB1142 operates from a single 3.3V supply and is available in a 40-pin WQFN package.

Package Information
PART NUMBER TEMPERATURE PACKAGE(1) PACKAGE SIZE(2)
TUSB1142 TA = 0ºC to 70ºC RNQ (WQFN, 40) 6mm × 4mm
TUSB1142I TA = –40ºC to 85ºC RNQ (WQFN, 40) 6mm × 4mm
(1) For all available packages, see the orderable addendum at the end of the data sheet.
(2) The package size (length × width) is a nominal value and includes pins, where applicable.
TUSB1142 Simplified SchematicSimplified Schematic