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INTERNATIONAL JOURNAL OF CREATIVE RESEARCH THOUGHTS - IJCRT (IJCRT.ORG)
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ISSN Approved Journal No: 2320-2882 | Impact factor: 7.97 | ESTD Year: 2013
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Paper Title
Design and Implementation of ADPLL Using PYNQ Z2 FPGA
Authors
Prajwal P, Dr. Jeeru Dinesh Reddy
Keywords
All-Digital Phase-Locked Loop (ADPLL), PYNQ-Z2 FPGA, Time-to-Digital Converter (TDC), Digital Loop Filter, Digitally Controlled Oscillator (DCO), Frequency Divider, Phase Synchronization.
Abstract
This work presents the design and implementation of an All-Digital Phase-Locked Loop (ADPLL) on the PYNQ-Z2 FPGA platform. The proposed system addresses limitations of traditional analog PLLs by utilizing fully digital components, enabling higher precision, scalability, and seamless integration with modern digital systems. The ADPLL architecture integrates a Time-to-Digital Converter (TDC), a Proportional-Integral Digital Loop Filter, a Digitally Controlled Oscillator (DCO), and a Frequency Divider. A normal filter is employed to improve noise immunity and enhance loop stability. The design is implemented in Verilog, synthesized, and deployed on the PYNQ-Z2 FPGA. Simulation and hardware tests validate the system's ability to achieve minimal jitter, zero steady-state phase error, and high synchronization accuracy, making it suitable for communication, signal processing, and clock synchronization applications.
IJCRT's Publication Details
Unique Identification Number - IJCRT2508317
Paper ID - 292392
Page Number(s) - c737-c743
Pubished in - Volume 13 | Issue 8 | August 2025
DOI (Digital Object Identifier) -
Publisher Name - IJCRT | www.ijcrt.org | ISSN : 2320-2882
E-ISSN Number - 2320-2882
Cite this article
Prajwal P, Dr. Jeeru Dinesh Reddy, "Design and Implementation of ADPLL Using PYNQ Z2 FPGA", International Journal of Creative Research Thoughts (IJCRT), ISSN:2320-2882, Volume.13, Issue 8, pp.c737-c743, August 2025, Available at :http://www.ijcrt.org/papers/IJCRT2508317.pdf
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ISSN: 2320-2882 Impact Factor: 7.97 and ISSN APPROVED Journal Starting Year (ESTD) : 2013
ISSN and 7.97 Impact Factor Details
ISSN: 2320-2882 Impact Factor: 7.97 and ISSN APPROVED Journal Starting Year (ESTD) : 2013
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