SLASEW5A December   2020  – October 2024 TMUXHS4412

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 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Output Enable and Power Savings
      2. 6.3.2 Data Line Biasing
    4. 6.4 Device Functional Modes
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Applications
      1. 7.2.1 PCIe Lane Muxing
        1. 7.2.1.1 Design Requirements
        2. 7.2.1.2 Detailed Design Procedure
        3. 7.2.1.3 Pin-to-Pin Passive Versus Redriver Option
        4. 7.2.1.4 Application Curves
    3. 7.3 Systems Examples
      1. 7.3.1 PCIe Muxing for Hybrid SSD
      2. 7.3.2 DisplayPort Main Link
      3. 7.3.3 USB 4.0 / TBT 3.0 Demuxing
    4. 7.4 Power Supply Recommendations
    5. 7.5 Layout
      1. 7.5.1 Layout Guidelines
      2. 7.5.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Related Documentation
      1. 8.1.1 Documentation Support
    2. 8.2 Receiving Notification of Documentation Updates
    3. 8.3 Support Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 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

7.2.1.3 Pin-to-Pin Passive Versus Redriver Option

For 8-lane PCIe lane muxing application a topology with four TMUXHS4412 devices is illustrated. TMUXHS4412 is a passive mux/demux component that does not provide any signal conditioning. If a specific board implementation has too much loss from CPU to PCIe CEM connectors, a signal conditioning device such as linear redriver may be required for best fidelity of the PCIe link. DS160PR421 is a PCIe 4.0 linear redriver with intergrated mux and DS160PR412 is a PCIe 4.0 linear redriver with integrated demux. Both of these devices are pin-to-pin (p2p) compatible with the TMUXHS4412, which allows an easy transition if signal conditioing function is needed to extend the PCIe link reach. Figure 7-3 illustrates p2p passive versus redriver option to implement PCIe lane switching.

TMUXHS4412 Pin-to-Pin Passive vs Redriver Option for PCIe Lane SwitchingFigure 7-3 Pin-to-Pin Passive vs Redriver Option for PCIe Lane Switching