Scope

This application note covers the most common EMC problems designers encounter when using microcontrollers. It will briefly discuss the various phenomena. The reference literature covers EMC design in more detail, and for designers who are going to build products that need to be EMC compliant, further study is highly recommended. A good EMC design requires more knowledge than what can be put into a short application note.

Unlike many other design issues, EMC is not an area where it is possible to list a set of rules. EMC compliance cannot be guaranteed by design; it has to be tested.

It is recommended that readers unfamiliar with EMC design read this document more than once, as some of the subjects described early in this document are more easily understood if the reader has already read the rest of the document.