时钟抖动是输出时钟的随机变化。

Jitter is a random variation of the output clock.

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延迟电路可通用于输出时钟的频率调整以及相位调整这两方面。

The delay circuit is used for both frequency and phase adjustments of the output clock.

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输出时钟抖动定义为三种类型：周期抖动，占空比抖动和相位抖动。

Output jitter is defined in three ways: period jitter. duty-cycle jitter, and phase jitter.

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