README.md

WARNING: Work in processing!

All-Digital Phase-Locked Loops (ADPLL)

All-Digital Phase-Locked Loops (ADPLL) code in High Speed Integrated Circuit Hardware Description Language (VHDL) for a Field Programmable Gate Array (FPGA). The code is for the Intel/Altera Cyclone V FPGA.

Auhtors

• Wellington W. F. Sarmento - Doctoral student of the Postgraduate Program in Electrical Engineering (PPGEE) of the Federal University of Ceará (UFC)

• Paulo de Tarso C. Pequeno - Master in Teleinformatics Engineering from the Federal University of Ceará (UFC). Student-observer for a PhD in Electrical Engineering at UFC)

• Rodrigo C. Ciarlini - Master student of the Post-Graduate Program in Electrical Engineering (PPGEE) of the Federal University of Ceará (UFC)

About this work

Code produced in the course of Advanced Microprocessor Techniques (DSP and FPGA) of the UFC PPGEE, under the supervision of Prof. PhD Paulo Peixoto Praça.

Presentation

• PDF Format - portuguese Version
• Keynote Format - portuguese Version
• Powerpoint Format - portuguese version

Files

• adpll.vhd: main project file with all project componets
• divfreq.vhd: frequency divider file vhdl
• sine_wave_gen.vhd: sine wave generator vhdl file
• pfd.vhd: phase frequency detector vhdl file
• k_counter.vhd: loop filter (K-Counter) vhdl file
• dco.vhd: Digital controlled oscillator vhdl file (not completed)

Conclusions

Future works

References

1. Behzad Razavi, "Design of Monolithic PhaseLocked Loops and Clock Recovery CircuitsA Tutorial," in Monolithic Phase-Locked Loops and Clock Recovery Circuits: Theory and Design , IEEE, 1996, pp.1-39, doi: 10.1109/9780470545331.ch1.
2. E. Zianbetov, M. Javidan, F. Anceau and D. Galayko, E. Colinet, J. Juillard. Design and VHDL Modeling of All-Digital PLLs. 8th IEEE International NEWCAS Conference (NEWCAS’10), Montreal: Canada (2010).
3. K. Lata, M. Kumar. ADPLL Design and Implementation on FPGA. International Conference on Intelligent Systems and Signal Processing (ISSP), IEEE, 2013.
4. Gayathri M G. Design of All Digital Phase Locked Loop in VHDL. International Journal of Engineering Research and Applications (IJERA), Vol. 3, Issue 4, 2013, pp. 1074-1076.
5. Henry Young, Alex Tong, Ahmed Allam. Projeto de um DPLL. Disciplina High Level Digital ASIC Design Using CAD (EE552), Departamento de Engenharia Elétrica e de Computadores, Universidade de Alberta, Canadá, 1999. Acessado em 10/05/2021.
6. P. E. Allen. Lecture 080 - All Digital Phase Lock Loops (ADPLL). Material da disciplina Frequency Sythesizers, The School of Electrical and Computer Engineering of Georgia Institute of Technology,2003. Acessado em: 02/07/2021.
7. M. Kumar, K. Lata. FPGA Implementation of ADPLL with Ripple Reduction Techniques. International Journal of VLSI design & Communication Systems (VLSICS) Vol.3, No.2, 2012 .
8. ZipCPU. Building a Numerically Controlled Oscillator. URL: https://zipcpu.com/dsp/2017/12/09/nco.html. 2017.
9. SurfVHDL. How to implement NCO in VHDL. URL: https://surf-vhdl.com/how-to-implement-nco-vhdl/. 2017
10. R.E. Best, Phase-Locked Loops – Design, Simulation, and Applications, 4thedition, McGraw-Hill, 1999.
11. Basab B Purkayastha, Kandarpa Kumar Sarma. A Digital Phase Locked Loop based Signal and Symbol Recovery System for Wireless Channel. 1stPublisher: Springer India, New DelhiISBN: 978-81-322-2040-4, DOI:10.1007/978-81-322-2041-1, URL: link, 2015.

Tools

• Altera Quartus Prime Lite Edition Version 15.1.0 (Copyright (C) 1991-2015 Altera Corporation)
• ModelSim Altera Starter Edition 10.4b (opyright (C) 1991-2015 Mentor Graphics Corporation)

Operating System used for tests

Microsoft Windows 11

Lisence

GNU Public Lisence version v3.0.