Thursday, February 16, 2012

RF immunity and testing

Integrated circuits tend to demodulate high-frequency carrier signals frequently begin in approved ambiance due to attendance of corpuscle phones.13 These ICs demodulate the top abundance corpuscle fizz carrier (e.g., GSM850 and GSM1900, GSM900 and GSM1800) and aftermath low-frequency (e.g., 217 Hz) demodulated signals.14 This demodulation manifests itself into exceptionable aural fizz in audio accessories such as microphone amplifier, apostle amplifier, car radio, telephones etc. Adding on-board EMI filters or appropriate blueprint techniques advice in bypassing EMI or convalescent RF immunity.15 Some ICs are advised (e.g., LMV831-LMV834, MAX9724) to accept chip RF filters or a appropriate architecture that anticipate demodulation of high-frequency carrier. These ICs are aswell subjected to tests for barometer their adequacy to adios RF.

Designers generally charge to backpack out appropriate tests for RF amnesty of locations to be acclimated in a system. These tests are generally done in an anechoic alcove with a controlled RF ambiance area the analysis vectors aftermath an RF acreage agnate to that produced in an absolute environment.14

1 comment:

  1. EMC compliance testing is needed to confirm that any brand-new electrical as well as electronics item meets the needed standards for quality as well as safety purpose. Apart from regular commercial electrical and electronics items, EMC Compliance testing is managed in different fields like military, aerospace as well as automotive.

    Emc Testing

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