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

2.1.1 Test Setup

The BOOST-LDC3114EVM is the evaluation module available for the LDC3114. It has a two-board setup where the device is provided as a booster pack for the MCU board. Since the MCU is not the subject of this test, the booster pack is disconnected after the device is configured, leaving only the BOOST-LDC3114EVM board along with the power supply. Information on the board design and layout is found in the BOOST-LDC3114 Evaluation Module user's guide. During radiated EMI testing, multiple antenna types are used to determine the performance of the DUT over different frequency ranges. The four different antennae used in this setup are: active monopole (150 kHz–30 MHz), bi-conical (30 MHz–200 MHz), log-periodic (200 MHz–1 GHz), and horn (1 GHz–2.5 GHz).

Figure 2-1 Radiated Test Block Diagram