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本电路与其他一些解决方案不一样,可以将两个脉冲群的频率与相互为同步整倍数的频率进行比较(参见图a).2个脉冲群馈给2个D型触发器
Unlike some other solutions, this circuit compares the frequency of two bursts with the frequency of multiples of each other (see Figure a). Two bursts are fed to two D-type flip-flops