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← ScienceWhich mechanism limits signal propagation in high-speed digital circuits exceeding the Nyquist frequency?
A)Quantization error causing signal aliasing✓
B)Dielectric losses increasing signal attenuation
C)Electromagnetic interference corrupting data
D)Thermal noise distorting voltage levels
💡 Explanation
When signals exceed the Nyquist frequency, undersampling causes aliasing because higher frequencies are misinterpreted as lower ones, corrupting the reconstructed signal. Therefore, quantization error dictates signal limitations, rather than dielectric, noise, or interference which are properties of the transmission channel.
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