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CD4046和CD4040组成的锁相环倍频器

Other Parts Discussed in Thread: CDCE913

CD4046和CD4040组成的锁相环倍频器,有没有官方的参考电路?目前电路搭出来了,但是无法实现预期的倍频,没有输入,但是输出是有频率方波的。应该怎样去调整参数,按照数据手册上的图表来看,并不能实现预期的中心频率。