SLLSFP1A May   2024  – September 2024 TUSB521-Q1

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
    6. 5.6 Timing Requirements
    7. 5.7 Switching Characteristics
    8. 5.8 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 USB 3.2
      2. 7.3.2 4-Level Inputs
      3. 7.3.3 Receiver Linear Equalization
    4. 7.4 Device Functional Modes
      1. 7.4.1 USB 3.2 2:1 MUX Description
      2. 7.4.2 Linear EQ Configuration
      3. 7.4.3 USB3.2 Modes
      4. 7.4.4 Operation Timing – Power Up
    5. 7.5 Programming
      1. 7.5.1 TUSB521-Q1 I2C Target Behavior
  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 SSTX1/2 Receiver Configuration
        2. 8.2.2.2 USB RX1/2 Receiver Configuration
        3. 8.2.2.3 ESD Protection
      3. 8.2.3 Application Curve
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Register Maps
    1. 9.1 General Register (address = 0x0A) [reset = 00000001]
    2. 9.2 USB3.2 Control/Status Registers (address = 0x20) [reset = 00000000]
    3. 9.3 USB3.2 Control/Status Registers (address = 0x21) [reset = 00000000]
    4. 9.4 USB3.2 Control/Status Registers (address = 0x22) [reset = 00000000]
  11. 10Device and Documentation Support
    1. 10.1 Receiving Notification of Documentation Updates
    2. 10.2 Support Resources
    3. 10.3 Trademarks
    4. 10.4 Electrostatic Discharge Caution
    5. 10.5 Glossary
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information

Package Options

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

8.2.2.2 USB RX1/2 Receiver Configuration

TI recommends to set TUSB521-Q1 EQ[1:0] pins if pin-strap mode, or EQ1_SEL and EQ2_SEL if I2C mode to about 4db to 5dB greater than loss of the post channel (LCD). For example, if post channel is 0.5 inches, then assuming –1dB per inch at 5GHz, program the EQ1_SEL and EQ2_SEL between 4.5dB and 5.5dB. TI recommends to perform USB 3.2 Rx JTOL long and short channel tests to optimize the setting.