SCDS432 June   2021 TMUX646

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 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
    6. 6.6 Typical Characteristics
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 1.2-V Logic Compatible Inputs
      2. 8.3.2 Bidirectional Operation
      3. 8.3.3 Powered-Off Protection
      4. 8.3.4 Low Power Disable Mode
    4. 8.4 Device Functional Modes
      1. 8.4.1 Pin Functions
      2. 8.4.2 Low Power Disable Mode
      3. 8.4.3 Switch Enabled Mode
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 MIPI D-PHY Application
        2. 9.2.2.2 MIPI C-PHY Application
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Support Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

9.2.1 Design Requirements

Design requirements of the MIPI standard must be followed. Supply pin decoupling capacitors of 2.2 µF and 100 nF are recommended for best performance. The TMUX646 has internal 6-MΩ pulldown resistors on SEL and OE. The pulldown on these pins ensure that the digital remains in a non-floating state during system power-up to prevent shoot through current spikes and an unknown switch status. By default the switch will power up enabled and with the A path selected until driven externally by the processor.