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← ScienceWhich consequence results when capacitive coupling degrades on high-speed differential signal pairs?
A)Increased electromagnetic interference (EMI) emissions✓
B)Reduced common-mode noise rejection
C)Decreased differential signal impedance
D)Enhanced signal integrity and eye closure
💡 Explanation
Increased EMI emissions occur because imbalanced currents from degraded capacitive coupling contribute to unwanted common-mode currents; the electric current then radiates more effectively during common-mode conduction, therefore, elevated EMI, rather than signal improvements affect emissions.
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