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LMK04821: OSCIN输入10M时钟,PLL2无法锁定

Part Number: LMK04821

外部硬件设计OSCin输入10M,PLL2无法锁定,具体参数设计及外部环路滤波如图,请熟悉该问题或此芯片应用的工程师帮忙解答或提供思路,期待您的回复