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AVR040: EMC Design Considerations
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From Atmel Corporation
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. Products & Services
Smart card chips contain a microprocessor and/or memory. They are embedded in smart cards; portable devices that resemble credit cards but are used in applications such as banking and health care.
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Learn more about Smart Card Chips
Digital signal processors (DSPs) are specialized microprocessors designed specifically for digital signal processing, usually in real-time. DSPs can also be used to perform general-purpose computations, but are not optimized for this function.
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Learn more about Digital Signal Processors (DSP)
Microcontrollers (MCU) are complete computer systems on a chip. They combine an arithmetic logic unit (ALU), memory, timer/counters, serial port, input/output (I/O) ports and a clock oscillator.
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Learn more about Microcontrollers (MCU)
Microprocessor chips (MPU) are silicon devices that serve as the central processing unit (CPU) in computers. They contain thousands of electronic components and use a collection of machine instructions to perform mathematical operations and move data from one memory location to another.
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Learn more about Microprocessor Chips (MPU)
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Topics of Interest
This application note has been written to provide answers to some of the questions and problems faced when starting designs involving AVR microcontrollers. The application note treats topics that are...
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15.1 System Versus Product EMC
The title of this book is EMC for Product Designers and that is its primary focus. But many individual products, that is electronic equipment and apparatus, are...
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5.2 Component Application
Listed here are some categories of component application processes that may be documented in a Plan. Not all of the categories listed below are relevant to every component...
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16.1 Managing the EMC Process
Implementing a strategy of EMC compliance within a company is much more than simply ensuring that the product designers make their designs meet the standards although...
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B.1 Overview
It may seem strange to devote no more than a few pages at the back of a book on product design for EMC to the important subject of computer-aided design (CAD). The prospect of...
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