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关于TLK2521的LOCK失锁问题



最近在调试TLK2521这个芯片,在调试过程中,碰到了一个问题:当使用rtl2521的loopen做环回测试时,LOCKB发现是无失锁现象,但当去除loopen,通过光路去环回时,发现LOCKB偶尔会失锁,大概几分钟出现一次,请问这类原因是否与电源或者时钟抖动有关,该怎么处理。