SPLA002 July   2026 CC2755R10

 

  1.   1
  2.   Abstract
  3. 1Introduction
  4. 2Profile of CC2755
  5. 3Demonstration of the TI Door Lock Solution
  6. 4Overview of Channel Sounding Technology
    1. 4.1 Basic Principles
    2. 4.2 Ranging method
    3. 4.3 Accuracy and Reliability
  7. 5Overall System Design
    1. 5.1 Overall System Architecture
      1. 5.1.1 Power Design Guidance
        1. 5.1.1.1 Linear Regulator Architecture
        2. 5.1.1.2 Buck Converter Architecture
      2. 5.1.2 Motor Driver Design Guidance
  8. 6CC2755-Based Ranging Implementation
    1. 6.1 Keyless Entry Logic
      1. 6.1.1 Basic Configuration and Calibration
      2. 6.1.2 Real-Time Ranging Process
      3. 6.1.3 Frictionless Unlocking Decision Logic
        1. 6.1.3.1 Intent Judgement
      4. 6.1.4 Unlock Execution and Feedback
      5. 6.1.5 Exception Handling
    2. 6.2 RF Hardware Design
      1. 6.2.1 Key End Solution Selection
      2. 6.2.2 Door Lock End Solution Selection
    3. 6.3 Hardware Reference Design
    4. 6.4 Single Antenna and Multi-Antenna
      1. 6.4.1 Impact of Antenna Quantity on Channel Sounding Ranging Performance
      2. 6.4.2 The Role of Antennas in Phase-Based Ranging
      3. 6.4.3 Analysis of Advantages and Disadvantages of Single-Antenna Configuration
        1. 6.4.3.1 Advantages: Simplicity and Low Cost
        2. 6.4.3.2 Disadvantages: Limited by Multiple Interference Factors
      4. 6.4.4 Analysis of Advantages and Disadvantages of Multi-Antenna Configuration
        1. 6.4.4.1 Advantage 1: Anti-Multipath Capability Brought by Spatial Diversity
        2. 6.4.4.2 Advantage 2: Alleviating Antenna Orientation Sensitivity Issues
        3. 6.4.4.3 Advantage 3: Dual Enhancement of Accuracy and Robustness
        4. 6.4.4.4 Disadvantages: Increased Hardware Complexity and Cost
      5. 6.4.5 Precautions for Dual-Antenna Design
    5. 6.5 Test results
      1. 6.5.1 Hardware configuration
      2. 6.5.2 Software Configuration:
      3. 6.5.3 Environment Setup:
    6. 6.6 Power consumption simulations
  9. 7Summary
  10. 8References

8 References

  1. Texas Instruments, CC2755x10 SimpleLink Series 2.4GHz High-Performance Wireless MCU Datasheet.
  2. Texas Instruments, Enhancing Edge Intelligence with Embedded Processors White Paper.
  3. Texas Instruments, TPS62745 Dual-Cell Ultra-Low IQ Buck Converter for Low-Power Wireless Applications Datasheet (Rev. A).
  4. Texas Instruments, Smart Lock Reference Design Enabling 5+ Years of Battery Life with 4 AA Batteries (Rev. C).
  5. Texas Instruments, TPS62745 Buck Converter Evaluation Board User's Guide.
  6. Texas Instruments, TPS562202 4.3V to 17V Input, 2A Synchronous Buck Converter in SOT563 Package Datasheet.
  7. Texas Instruments, TPS563202 4.3V to 17V Input, 3A Synchronous Buck Converter in SOT563 Package Datasheet (Rev. B).
  8. Texas Instruments, TPS562202 Buck Converter Evaluation Module User's Guide (Rev. A).
  9. Texas Instruments, TPS563202 Buck Converter Evaluation Module User's Guide (Rev. B).
  10. Texas Instruments, Analog Front End for Arc Detection in Photovoltaic Applications Reference Design (Rev. B).
  11. Texas Instruments, TPS62901 3V to 17V, High-Efficiency, Low IQ Buck Converter in a 1.5mm × 2mm QFN Package Datasheet (Rev. A).
  12. Texas Instruments, TPS62902 3V to 17V, High-Efficiency and Low IQ Buck Converter in a 1.5mm × 2mm QFN Package Datasheet (Rev. A).
  13. Texas Instruments, TPS62903 3V to 17V, High-Efficiency and Low IQ Buck Converter in a 1.5mm × 2mm QFN Package Datasheet (Rev. A).
  14. Texas Instruments, TPS6290x Buck Converter Evaluation Module User's Guide (Rev. A).
  15. Texas Instruments, High-Power Density 17V, 3A Buck Converter Reference Design.
  16. Texas Instruments, TPS562211 4.2V to 18V Input, 2A Synchronous Buck Converter in SOT583 Package Datasheet (Rev. A).
  17. Texas Instruments, TPS563211 4.2V to 18V Input, 3A Synchronous Buck Converter in SOT583 Package Datasheet (Rev. A).
  18. Texas Instruments, TPS562211 Buck Converter Evaluation Module User's Guide (Rev. A).
  19. Texas Instruments, TPS563211 Buck Converter Evaluation Module User's Guide (Rev. A).
  20. Texas Instruments, TPS629203 300mA, 3V to 17V Low IQ Buck Converter with DCS-Control Topology Datasheet.
  21. Texas Instruments, TPS629206 600mA, 3V to 17V Low IQ Buck Converter with DCS-Control Topology Datasheet.
  22. Texas Instruments, TPS629210 3V to 17V, 1A Low IQ Buck Converter in a SOT-583 Package Datasheet (Rev. B).
  23. Texas Instruments, TPS629203 Buck Converter Evaluation Module User's Guide.
  24. Texas Instruments, 19W, 5V and 12V AC/DC Multi-Output, ZVS Flyback Reference Design for Server Applications.
  25. Texas Instruments, TPS629206 Buck Converter Evaluation Module User's Guide.
  26. Texas Instruments, TPS629210 Buck Converter Evaluation Module User's Guide.
  27. Texas Instruments, DRV8210 11V H-Bridge Motor Driver with PWM, PH/EN, and Half-Bridge Control Interfaces and Low-Power Sleep Mode Datasheet (Rev. B).
  28. Texas Instruments, DRV8210P 11V H-Bridge Motor Driver with PWM Interface and Low-Power Sleep Mode Datasheet.
  29. Texas Instruments, DRV8212 11V H-Bridge Motor Driver with PWM, PH/EN, and Half-Bridge Control Interfaces and Low-Power Sleep Mode Datasheet (Rev. B).
  30. Texas Instruments, DRV8212P 11V H-Bridge Motor Driver with PWM Interface and Low-Power Sleep Mode Datasheet (Rev. A).
  31. Texas Instruments, DRV821x Low-Voltage H-Bridge Motor Driver Evaluation Module with Low-Power Sleep Mode.
  32. Texas Instruments, Low-Cost Blood Pressure and Heart Rate Monitor Reference Design.
  33. Texas Instruments, DRV8847 Dual-Channel H-Bridge Motor Driver Evaluation Module.
  34. Texas Instruments, Blower and Valve Control Reference Design for Respiratory Applications.
  35. Texas Instruments, DRV8832 Evaluation Module.
  36. Texas Instruments, DRV8876 H-Bridge Motor Driver with Integrated Current Sensing and Regulation Datasheet (Rev. A).
  37. Texas Instruments, DRV8876 Single-Channel H-Bridge Motor Driver Evaluation Module.
  38. Texas Instruments, Advantages of Integrated Current Sensing.
  39. Texas Instruments, 18V, 2A, 25mm Brushed DC Motor Driver Reference Design with Stall Detection and Speed Control.
  40. Texas Instruments, DRV8213 4A Brushed DC Motor Driver with Integrated Current Sensing, Current Regulation, and Stall Detection Datasheet.
  41. Texas Instruments, DRV8214 2A Brushed DC Motor Driver with Ripple Counting, Stall Detection, and Speed Regulation Datasheet.
  42. Texas Instruments, DRV821x and DRV823x Evaluation Modules (Rev. A).
  43. Texas Instruments, CC23xx and CC27xx Hardware Configuration and PCB Design Considerations (Rev. A).