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请问怎样使用模拟电路实现信号的二分频呢？
二分频，常用的电路的 D 触发器。
如果是要输出方波，可以用模拟信号通过 施密特触发器后接 D 触发器。
为什么要使用模拟电路实现二分频呢？一般分频电路都是数字电路、逻辑电路
