“... circuits into a system, but also raise the operating clock frequency of the digital systems. However...”
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“..., and better integrity in digital system. The time-to-digital converter (TDC) is widely used in the ADPLL...”
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“... in digital system. To develop the potential of ADPLL in more aspects, two chip work base on the ADPLL...”
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“... in digital system. In the first chip work, a mixed-signal phase/frequency detector is proposed to degrade...”
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“.... Advances in CMOS technology are driven by the digital system need to enhance the circuit speed performance...”
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