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Which consequence results when parasitic capacitance couples digital isolator data lines?

A)Increased electromagnetic susceptibility
B)Amplified common-mode rejection
C)Reduced power supply ripple
D)Higher signal integrity margins

💡 Explanation

Increased electromagnetic susceptibility occurs because parasitic capacitance forms unintended antennas, allowing EMI coupling via capacitive impedance; therefore, the isolator becomes more vulnerable to external noise rather than other improvements like signal margins.

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