SLDA058 March   2021 TUSS4470

 

  1.   Trademarks
  2. 1Review of Ultrasonic Sensing Range Performance Factors
    1. 1.1 Physical Parameters
    2. 1.2 Transducer Characteristics
    3. 1.3 AFE Device Configuration
  3. 2Methods Overview
    1. 2.1 Introduction
    2. 2.2 Hardware Configuration
      1. 2.2.1 Transducers
      2. 2.2.2 Experimental Setup: Air-Coupled Level Sensing
      3. 2.2.3 Experimental Setup: Water-Coupled Level Sensing
      4. 2.2.4 TUSS4470 EVM Hardware Configuration
      5. 2.2.5 TDC1000-C2000EVM Hardware Configuration
    3. 2.3 Firmware Configuration
      1. 2.3.1 TUSS4470 Power Configuration
      2. 2.3.2 TUSS4470 220 kHz Configuration
      3. 2.3.3 TDC1000 220kHz Configuration
      4. 2.3.4 TDC1000 220kHz Configuration
      5. 2.3.5 TDC1000 1 MHz
  4. 3Short Range Air-Coupled Test Results
    1. 3.1 TUSS4470
    2. 3.2 TDC1000
  5. 4Mid-Range Air-Coupled Test Results
    1. 4.1 TUSS4470
      1. 4.1.1 Concept
      2. 4.1.2 TUSS4470 35 V Results
    2. 4.2 TDC1000
  6. 5Short Range Water-Coupled Test Results
    1. 5.1 TUSS4470
    2. 5.2 TDC1000
  7. 6Resistive Damping Device Comparison
    1. 6.1 TUSS4470
    2. 6.2 TDC1000
  8. 7Summary
  9. 8References
  10.   A Appendix A
    1.     A.1 TUSS4470: Filter Capacitor Selection
    2.     A.2 TUSS4470: Shematic
  11.   B Appendix B
    1.     B.1 TDC1000 Misc.
    2.     B.2 TDC1000-C2000EVM Schematic

2.1 Introduction

The purpose of this document is to provide a comparison between the TDC1000 and TUSS4470, which have overlapping frequency range support, but differing methods of configuration, operation and ToF data collection. The remainder of this report will cover the following:

  1. Hardware and firmware configuration of the TUSS4470EVM and TDC1000-C2000EVM for:
    1. Short and mid-range air-coupled ToF measurements with a 220 kHz transducer
    2. Short range water-coupled ToF measurements with a 1 MHz transducer
  2. TUSS4470EVM and TDC1000-C2000EVM short range air-coupled water level sensing test results
  3. TUSS4470EVM and TDC1000-C2000EVM mid-range air-coupled water level sensing test results
    1. Including TUSS4470EVM 5V and 35V drive voltage operation
  4. TUSS4470EVM and TDC1000-C2000EVM short range water-coupled water level sensing test results
  5. TUSS4470 and TDC1000 resistive damping comparison