IMPLEMENTATION OF MODIFIED DUAL-LOOP PHASE-LOCKED LOOP
VISAKH C K
, Dr. A Anitha
Three stage Current Starved Voltage controlled Oscillator (CSVCO), Phase Frequency Detector (PFD), Frequency Detector (FD), Phase Detector (PD), Frequency response, Jitter reduction, Phase Noise
This paper introduces an enhanced Dual-Loop Phase-Locked Loop (DL-PLL) architecture that combines a Modified design of three Stage Current Starved Voltage-Controlled Oscillator (CSVCO) having an active oscillation range between 6 to 21GHz, with a Frequency Detector (FD) and Phase Detector (PD) loops to achieve superior frequency stability, reduced phase noise, and optimized locking behavior. The dual-loop structure consists of a fast-locking inner loop FD and a low noise outer loop PD, addressing the need for efficient frequency acquisition alongside enhanced steady-state accuracy. The modified three stage CSVCO have wide tuning range, current-starved method brings accurate control over frequency of oscillation. The inclusion of a FD loop improves the frequency comparison and eliminating dead-zone issues, along with the inclusion of a PD loop performs phase detection and reduces the phase noise and jitter in the PLL output. The simulation results shows that DL-PLL having a faster lock times, lower phase noise, and reduced power consumption. This design is suitable for high performance applications, like clock synchronization, communication systems, clock generation in digital circuits, and high-frequency signal synthesis.
"IMPLEMENTATION OF MODIFIED DUAL-LOOP PHASE-LOCKED LOOP", IJSDR - International Journal of Scientific Development and Research (www.IJSDR.org), ISSN:2455-2631, Vol.10, Issue 5, page no.b915-b923, May-2025, Available :https://ijsdr.org/papers/IJSDR2505199.pdf
Volume 10
Issue 5,
May-2025
Pages : b915-b923
Paper Reg. ID: IJSDR_302845
Published Paper Id: IJSDR2505199
Downloads: 000484
Research Area: Science and Technology
Country: Coimbatore, Tamilnadu, India
DOI: https://doi.org/10.56975/ijsdr.v10i5.302845
ISSN: 2455-2631 | IMPACT FACTOR: 9.15 Calculated By Google Scholar | ESTD YEAR: 2016
An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 9.15 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator
Publisher: IJSDR(IJ Publication) Janvi Wave
