SLASEY7A June   2024  – November 2024 TMUXHS4612

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 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
    4. 7.4 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application - HDMI
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      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
    5. 8.5 Systems Examples
      1. 8.5.1 DisplayPort 2:1 Mulitplexing
      2. 8.5.2 DisplayPort 1:2 Mulitplexing
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

Package Options

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

8.2.2 Detailed Design Procedure

The TMUXHS4612 is designed to operate with 3.0V to 3.6V power supply. Decoupling capacitors can be used to reduce noise and improve power supply integrity. Pullup resistors to 5V must be placed on the source side DDC clock and data lines according to the HDMI standard.

In the HDMI standard the DDC clock, DDC data, and HPD lines are at 5V levels. In some use cases the HDMI source or sink may not be able to handle 5V levels. If this is the case, then an external level shifter must be deployed in order to level shift the HDMI signals to an aceptable level. Figure 8-2 shows an example implementation of an I2C level shifter such as Texas Instruments TCA9517. In this example the HDMI sources are subjected to HDMI levels up to VCC_A (such as 3.3V) instead of HDMI 5V.

TMUXHS4612 DDC level shifter source side example Figure 8-2 DDC level shifter source side example