SNOAA88 June   2022 LDC3114 , LDC3114-Q1

 

  1.   Abstract
  2.   Trademarks
  3. 1Introduction
    1. 1.1 Inductive Sensing
    2. 1.2 EMI
  4. 2CISPR 25 Requirements
    1. 2.1 Radiated EMI Testing
      1. 2.1.1 Test Setup
      2. 2.1.2 Test Results
    2. 2.2 Conducted EMI Testing
      1. 2.2.1 Test Setup
      2. 2.2.2 Test Results
  5. 3Summary
  6. 4References

2.2.1 Test Setup

The conducted testing setup (see Figure 2-10) is similar to the radiated case with the main difference being where the spectrum analyzer is connected and the lack of antenna in the system. These tests show the noise produced by the BOOST-LDC3114EVM that couples through the supply lines.

Figure 2-10 Conducted Test Block Diagram

The test was run using different sensor coils with the LDC3114. These sensors show the impact of using different sensor frequencies and how they impact the EMI performance of the device.