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Answers for “奇模的定义是什么?”

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Odd mode is the operating state of a differential pair where the two signal lines are driven by voltages that are equal in magnitude but opposite in polarity.

Conditions: Applies to the two signal lines of a differential pair.; The driving voltages on the two lines have opposite polarities.

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Even mode is the operating state of a differential pair where the two signal lines are driven by voltages that are identical in both magnitude and polarity.

Conditions: Applies to the two signal lines of a differential pair.; The driving voltages on the two lines have the same magnitude and polarity.

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The common-mode impedance is calculated as one-half of the even-mode impedance. This relationship holds when the differential pair is driven in even mode, meaning both lines are driven by identical voltages.

Conditions: The differential pair is driven in even mode (identical polarity voltages).; ZevenZ_{even} denotes the characteristic impedance of a single trace under even-mode excitation.

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The differential impedance is calculated as twice the odd-mode impedance. This relationship holds when the differential pair is driven in odd mode, meaning the two lines are driven by opposite voltages.

Conditions: The differential pair is driven in odd mode (opposite polarity voltages).; ZoddZ_{odd} denotes the characteristic impedance of a single trace under odd-mode excitation.

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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.