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Which consequence results when unintentional capacitive coupling occurs in high-speed digital circuits?

A)Increased bit error rate
B)Reduced power supply voltage
C)Enhanced signal integrity margins
D)Decreased electromagnetic interference (EMI)

💡 Explanation

Increased bit error rate occurs due to crosstalk. Capacitive coupling induces unwanted signal voltages, causing unpredictable transitions. Because parasitic capacitance allows noise, it can corrupt transmitted date; therefore, bit errors increase rather than improve integrity, which would require impedance matching.

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