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← ScienceWhich mechanism causes increased signal distortion in high-frequency integrated circuits?
A)Parasitic capacitance changes impedance matching✓
B)Ohmic heating induces thermal runaway
C)Electromigration causes trace disconnection
D)Piezoelectric effects generate spurious voltages
💡 Explanation
Increased signal distortion at high frequencies is caused by parasitic capacitance. This parasitic capacitance induces impedance mis-matching because the reactance varies inversely with frequency, therefore more signal distortion occurs at higher frequencies rather than due to other processes.
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