Abstract
This paper presents a novel architecture for phase frequency detector (PFD) which eliminates the blind zone effect as well as the dead zone for a charge-pump phase-locked loop (CP-PLL). This PFD is designed in 65 nm CMOS technology, and its functionality is verified across process, voltage and temperature variations. Achieved maximum frequency of operation (\(F_{\max }\)) is 3.44 GHz which is suitable for high reference clocked fast settling PLLs. Proposed PFD consumes 324 \(\upmu \)W power from 1.2 V supply at maximum operating frequency. The area occupied by proposed circuit layout is 322.612 \(\upmu {\text {m}}^2\).
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Acknowledgements
The authors would like to thank The Ministry of Electronics and Information Technology(MeitY), Government of India for the necessary tool support provided to carry out this work under SMDP-C2SD Project.
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Lad Kirankumar, H., Rekha, S. & Laxminidhi, T. A Dead-Zone-Free Zero Blind-Zone High-Speed Phase Frequency Detector for Charge-Pump PLL. Circuits Syst Signal Process 39, 3819–3832 (2020). https://doi.org/10.1007/s00034-020-01366-1
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DOI: https://doi.org/10.1007/s00034-020-01366-1