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Answers for “共模信号的定义是什么?”

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The common-mode signal voltage is defined as the arithmetic average of the two single-ended signal voltages. It represents the shared component of the signals during differential transmission.

Conditions: There are two transmission lines and their corresponding reference planes.; The driver outputs a positive-polarity signal and a negative-polarity signal.

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The differential signal voltage is defined as the difference between the two single-ended signal voltages. Specifically, it is the positive-polarity signal voltage minus the negative-polarity signal voltage.

Conditions: There are two transmission lines and their corresponding reference planes.; The driver outputs a positive-polarity signal and a negative-polarity signal.

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Odd mode and even mode are the intrinsic natural modes of the differential pair transmission line itself, describing its physical characteristics. Differential mode and common mode are special signals applied externally to the differential pair.

Conditions: The context is high-speed circuit design and signal integrity.; The system involves a differential pair transmission line.