The comparison of digital frequency divider and traditional analog frequency divider shows that the former is more superadded.

比较了数字分频器与传统模拟分频器，说明数字分频器更具优点。

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Use a binary digital shifter replace the traditional divider in ADPLL, make the structure simple and keeps the loop gain constant when the frequency multiplication factor changes.

采用数字移位器替代传统的除法器，使得电路结构大大简化，而且在很大的倍频系数范围内都保持很好的稳定性。

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