SLLSEV9E July   2016  – November 2023 TUSB522P

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Revision History
  6. 5 Pin Configuration and Functions
  7. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics, Power Supply
    6. 6.6 Electrical Characteristics, DC
    7. 6.7 Electrical Characteristics, AC
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Receiver Equalization
      2. 7.3.2 De-Emphasis Control and Output Swing
      3. 7.3.3 Automatic LFPS Detection
    4. 7.4 Device Functional Modes
      1. 7.4.1 Device Configuration
      2. 7.4.2 Power Modes
        1. 7.4.2.1 U0 Mode (Active Power Mode)
        2. 7.4.2.2 U2/U3 (Low Power Mode)
        3. 7.4.2.3 Disconnect Mode - RX Detect
        4. 7.4.2.4 Shutdown Mode
  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 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. 10Mechanical, Packaging, and Orderable Information

Package Options

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

7.1 Overview

The TUSB522P is designed to overcome channel loss due to inter-symbol interference and crosstalk when 5Gbps USB3.1 GEN1 signals travel across a PCB or cable. The dual channel architecture is a one-chip, low-power solution, extending the possible channel length for transmit and receive data paths in an application. For a Host application, this enables the system to pass both transmitter compliance and receiver jitter tolerance tests.

The re-driver recovers incoming data by applying equalization that compensates for channel loss, and drives out signals with a high differential voltage. Each channel has a receiver equalizer with selectable gain settings. The equalization should be set based on the amount of insertion loss in channel 1 or 2 before the TUSB522P receivers. Likewise, the output drivers support configuration of De-Emphasis. Independent equalization and de-emphasis control for each channel can be set using EQ1/2 and DE1/2 pins.

The TUSB522P advanced state machine makes it transparent to hosts and devices. After power up, the TUSB522P periodically performs receiver detection on the TX pairs. If it detects a USB3.1 GEN1 receiver, the RX termination is enabled, and the TUSB522P is ready to re-drive.

The device ultra-low-power architecture operates at a 3.3-V power supply and achieves Enhanced performance. The automatic LFPS De-Emphasis control further enables the system to be USB3.1 compliant.