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5 articles for “VCO”
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Tuning Range, Phase Noise and Jitter Analysis of Current Starved Voltage Controlled Oscillator (VCO) for Digital PLL in 45 nm CMOS Technology
Abstract: A wide tuning range, low phase noise and low jitter 100 MHz Voltage-Controlled Oscillator (VCO) for DPLL was designed and implemented by 45 nm CMOS process technology using LT spice. There was a relation between the frequency tuning range, phase noise, and jitter at output of the VCO after linearizing the gain. Simulations using PTM 45 nm CMOS process technology shows, that a wide operation frequency range (tuning range) from …
Published in Journal of VLSI Design Tools and Technology · Vol. 5, Issue 2, 2015 · pp. 81–89 Read article
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A Study of Metabolic Responses of R.Q, VO₂, and VCO₂ in Two Different Swimming Strokes
Abstract: This study investigates the metabolic responses, including Respiratory Quotient (R.Q), oxygen intake (VO₂), and carbon dioxide output (VCO₂), in freestyle and butterfly stroke swimmers. Understanding these responses is crucial for optimizing training and improving competitive performance. The study employed a comparative cross-sectional design involving 30 university-level swimmers (15 freestyle and 15 butterfly) who completed treadmill tests. Measurements of VO₂ and VCO₂ were taken using an S147 Rapid Response O₂/CO₂ Analyzer, …
Published in Recent Trends in Sports · Vol. 1, Issue 2, 2024 · pp. 1–7 Read article
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Design of Energy Efficient Clock System
Abstract: Energy efficiency is a key metric for energy constrained Ultra Low Power (ULP) VLSI applications such as wireless sensor nodes, pace makers, hearing aids etc. These applications need clock system in their signal processing and communication sub-system. Moreover, clock system plays a vital role in governing the reliability, power consumption and performance of synchronous system. In today’s era of portable electronics, power consumption has emerged as a forefront design metrics. …
Published in Journal of VLSI Design Tools and Technology · Vol. 9, Issue 2, 2019 · pp. 1–7 Read article
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Design of Voltage Controlled Oscillator using GDPK 90nm CMOS Technology
Abstract: In the recent decade, there has been a major revolution in communication systems and devices. Many communication devices required a specific frequency which may range from a few Hz to several GHz by source of voltage. Voltage Control Oscillator (VCO) plays a major role in today’s modern communication system. Voltage Control Oscillator use as basic building block in communication circuits and major use in phase locked loops circuits. Due to …
Published in Journal of Electronic Design Technology · Vol. 13, Issue 1, 2022 · pp. 17–24 Read article
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Study of Dual Modulus Prescaler for Frequency Synthesizer
Abstract: In recent mobile communication systems high frequency synthesizers are the main building block. Voltage controlled oscillator (VCO) and prescalers are the high frequency parts of a frequency synthesizer. The prescaler reduce high frequencies into low frequencies by a small integer division. For prescaler power consumption, speed and no. of division ratios are the major concerns. The dual modulus prescalers are the frequency dividers which can selectively divide the frequency with …
Published in Journal of Microelectronics and Solid State Devices · Vol. 3, Issue 2, 2016 · pp. 16–22 Read article