SLLSFW6B March   2024  – July 2026 ISOUSB211-Q1

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  Power Ratings
    6. 5.6  Insulation Specifications
    7. 5.7  Safety-Related Certifications
    8. 5.8  Safety Limiting Values
    9. 5.9  Electrical Characteristics
    10. 5.10 Switching Characteristics
    11. 5.11 Insulation Characteristics Curves
    12. 5.12 Typical Characteristics
  7. 6 Parameter Measurement Information
    1. 6.1 Test Circuits
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  Power Supply Options
      2. 7.3.2  Power Up
      3. 7.3.3  Symmetric Operation, Dual-Role Port and Role-Reversal
      4. 7.3.4  Connect and Speed Detection
      5. 7.3.5  Disconnect Detection
      6. 7.3.6  Reset
      7. 7.3.7  LS/FS Message Traffic
      8. 7.3.8  HS Message Traffic
      9. 7.3.9  Equalization and Pre-Emphasis
      10. 7.3.10 L2 Power Management State (Suspend) and Resume
      11. 7.3.11 L1 Power Management State (Sleep) and Resume
      12. 7.3.12 HS Test Mode Support
      13. 7.3.13 CDP Advertising
    4. 7.4 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Isolated Host or Hub
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
      2. 8.2.2 Isolated Peripheral - Self-Powered
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
      3. 8.2.3 Isolated Peripheral - Bus-Powered
        1. 8.2.3.1 Design Requirements
        2. 8.2.3.2 Detailed Design Procedure
      4. 8.2.4 Application Curve
        1. 8.2.4.1 Insulation Lifetime
    3. 8.3 Meeting USB2.0 HS Eye-Diagram Specifications
    4. 8.4 Thermal Considerations
      1. 8.4.1 VBUS / V3P3V Power
      2. 8.4.2 VCCx / V1P8Vx Power
      3. 8.4.3 Example Configuration 1
      4. 8.4.4 Example Configuration 2
      5. 8.4.5 Example Configuration 3
    5. 8.5 Power Supply Recommendations
    6. 8.6 Layout
      1. 8.6.1 Layout Guidelines
        1. 8.6.1.1 PCB Material
      2. 8.6.2 Layout Example
  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

7.2 Functional Block Diagram

A simplified functional block diagram of ISOUSB211-Q1 is shown in Figure 7-1. The device comprises the following:
  1. Transmit and receive circuits and pullup and pulldown resistors according to the USB standard.
  2. Digital logic to handle bidirectional communication, and various state-transitions.
  3. Internal LDOs to generate V3P3Vxand V1P8Vxsupplies from the VBUSxand VCCxsupplies respectively.
  4. Galvanic isolation.
ISOUSB211-Q1 ISOUSB211-Q1 Simplified Functional Block Diagram Figure 7-1 ISOUSB211-Q1 Simplified Functional Block Diagram