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Applying IEC 62132-2 to the real world: Immunity of an analogue to digital converter

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  • Musicology


The susceptibility of an analogue to digital (A/D) converter was measured according to IEC 62132-2 (TEM cell). The chip on its own had a high immunity as the lead-frame presents a small loop area and picks up little energy from an interfering source. With a small (15mm) track added the immunity was greatly reduced and showed a number that the interference had least effect at harmonics of the A/D converter clock frequency.

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