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如图，请问LMX2572在使用过程中当OSCin选择单端输入时，外部时钟信号必须从OSCinP引脚输入？在内部寄存器可以选择从OSCinP或者OSCinM输入？
您好,使用OSCinP或者OSCpinM哪个作为单端输入都可以, 不用的一端通过AC耦合电容和50ohm电阻到地即可．
另外,也不需要寄存器配置哪个作为输入,只需要配置R5寄存器bit12=1,select single-ended input就好了.
