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怎么判断晶振起振负载电容的余量或过分驱动

2025-03-14 13:21:02

推荐回答（1个）

回答1：

如何检测出晶振是否被过分驱动过呢？我们可用一台示波器检测OSC输出脚，如果检测一非常清晰的正弦波，且正弦波的上限值和下限值都符合时钟输入需要，则晶振未被过分驱动。相反，如果正弦波形的波峰，波谷两端被削平，而使波形成为方形，则晶振被过分驱动。

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