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Improving electro-magnetic noise immunity in serial communications systems

Posted: 30 Oct 2008 ?? ?Print Version ?Bookmark and Share

Keywords:communications system? electromagnetic noise? immunity test IEC? application note?

Electronic communications devices that operate in environments with a high level of electromagnetic noise require special consideration and testing to ensure the continuous delivery of uncorrupted data. Communication devices are susceptible to data interruption and corruption in industrial, automotive, telecommunication, medical and test lab environments, to name just a few. Demonstrating compliance with international immunity testing standards helps to ensure robust communications in noisy electromagnetic environments.

This application note provides key recommendations for implementing serial communication systems that exceed IEC immunity test standards. To provide an example of highly reliable serial communications system implementation and testing, a National Semiconductor DP83640 Ethernet PHY device was tested for International Electrotechnical Commission (IEC) immunity test compliance. Results from these tests are included for reference.

View the PDF document for more information.

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