EMC model elements causing interference

Q.  Which among the following elements of EMC model contribute/s in generating the interference in signal integrity?
- Published on 25 Sep 15

a. Energy source
b. Receptor
c. Coupling path between source & receptor
d. All of the above

ANSWER: All of the above

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    Discussion

  • Satyawati Patil   -Posted on 09 Oct 15
    The considerable factors for signal integrity also includes EMC compliance, power and ground planes,clock circuits and clock traces. While designing an EMC model, behavior of components and their interconnections are taken into consideration.

    Basically, a simple level of an EMC model consists of three elements like energy source, receptor and a coupling path present between source and receptor.

    It is possible to couple EMC emissions either by radiation or conduction. However, the suppressors in the mean time suppress these coupled emissions.

    By increasing the noise margin and decreasing the propagation efficiency, the desired level of noise immunity can be acquired.

    However, radiated coupling path occurs at higher frequency while conducted coupling path occurs at lower frequency. As a result, all the three elements of EMC are interconnected to each other from functional point of view & thereby, results in causing the interference in an EMC model.

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