SWRA824 October   2024 CC1120

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Technical Overview
  6. 3Causes of Spurious Emissions
  7. 4Functional Block Diagram and PCB
  8. 5Conducted Emissions Testing and Results
  9. 6Summary
  10. 7References

Abstract

DC-DC converters operate at a switching frequency that can potentially cause interference in the radio of a system. This application note explores the effects that different kinds of DC-DC converters have on spurious emissions in radios used for wireless fire safety, HVAC, and building security systems, and how to choose a regulator that solves this challenge.