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Design and Applications of Delay Locked Loop

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Bias circuit<br />

I<br />

LPF1<br />

LPF2<br />

four-stages delay line with nonlinear<br />

bias circuit<br />

UP<br />

DOWN<br />

DOWN<br />

UP<br />

CP1<br />

CP2<br />

I<br />

DLL with two current pump.<br />

It provides differential<br />

control voltage.

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