SLASF51 February   2024 TMUXHS4446

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 High-Speed Performance Parameters
    7. 5.7 Switching Characteristics
    8. 5.8 I2C Timing Characteristics
    9. 5.9 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 High-Speed Differential Signal Switching
      2. 6.3.2 Low-Speed SBU Signal Switching
      3. 6.3.3 GPIO and I2C Control Modes
    4. 6.4 Device Functional Modes
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application: USB-C with DP Alternate Mode - Source
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
      3. 7.2.3 Application Curves
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Device Support
    2. 8.2 Documentation Support
      1. 8.2.1 Related Documentation
    3. 8.3 Receiving Notification of Documentation Updates
    4. 8.4 Support Resources
    5. 8.5 Trademarks
    6. 8.6 Electrostatic Discharge Caution
    7. 8.7 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

Package Options

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

6.1 Overview

The TMUXHS4446 is a high-speed bidirectional passive crosspoint (Xbar) switch in mux or demux configurations. This device is used to switch between USB 3.2 Gen2 SuperSpeed and DisplayPort 1.4/2.1 (up to 10Gbps UHBR10) signals over a USB Type-C interface. The device also provides switching for the low-speed SBU signals typically used for DisplayPort auxiliary channels. The SBU pins are 6V tolerant to survive a short-to-VBUS event. The TMUXHS4446 supports differential signaling with common mode voltage range (CMV) from 0V to 1.8V and with differential amplitude from 0V to 1800mVpp. Adaptive CMV tracking enables the channel through the device to remain unchanged for the entire common-mode voltage range.

The dynamic characteristics of the TMUXHS4446 allows high-speed switching, minimum attenuation to the signal eye diagram, and with very little added jitter. The silicon design is optimized for excellent frequency response at higher frequency spectrum of the signals, and the silicon signal traces and switch network are matched for best intra-pair skew performance.

The TMUXHS4446 provides two forms of control modes: GPIO and I2C. In the GPIO mode the control pins are set high or low. In the I2C mode, an external I2C controller (such as USB PD controller) sets the mux configurations and device control. The control configuration flexibility allows compatibility with a wide variety of USB PD controllers.