This survey encompasses a comparative analysis of two commonly used VCO architectures: the Ring VCO and LC-VCO. The Ring VCO has been constructed with the collection of ring delay cells. Moreover, the LC-VCO utilizes inductors, capacitors, fine-tuning circuits, coarse-tuning circuits to generate frequency.

For CMOS based VCO design in current technology, LC and Ring based VCOs are two typical choices used in PLL design [1]. LC VCOs have a superior phase noise performance compared with Ring VCOs. How-ever, an LC VCO has a small tuning range, large layout area and possibly higher power [2].

Mar 1, 2025 · Based on the integrated circuit technology VCOs are classified into ring VCO and LCVCO. Ring VCOs have more phase noise but offer lower output frequencies, a large tuning range, a small chip area, and low power consumption.

LCVCO (LC tank VCO) topologies can meet all of these specifications. Through a comparison of ringVCOs and LCVCOs, the following advantages and disadvantages may be formulated.

Jan 1, 2023 · This survey encompasses a comparative analysis of two commonly used VCO architectures: the Ring VCO and LC-VCO. The Ring VCO has been constructed with the collection of ring delay cells.

communication systems. Voltage controlled oscillator (VCO) is the most essential part in radio frequency systems. This paper presents a comparative review of Ring VCO and LC-VCO in PLL on the premise of their performances with respect to different criteria. The ultra-fast wire line application use LC-VCO because of their

Moreover, the LC-VCO utilizes inductors, capacitors, fine-tuning circuits, coarse-tuning circuits to generate frequency. Furthermore, this study investigates an in-depth exploration of VCO structures, operational principles, advantages, limitations, and performance metrics.

CMOS circuits in VLSI consume less power when static. This paper presents a complementary metal–oxide–semiconductor (CMOS) ring oscillators and LC VCO and is brief study of high performance VCO on 45 nm technology to achieve the desired objectives such as both non linear and linear operations.

Voltage-controlled Oscillator (VCO) is a prominent part that has been used to generate a stable frequency for the high-frequency transceiver system. This survey encompasses a comparative analysis of two commonly used VCO architectures: the Ring VCO and LC-VCO.

Abstract— This paper describes a performance comparison of two PLLs for clock generation using a ring oscillator based VCO and an LC oscillator based VCO. We fabricate two 1.6GHz PLLs in a 0.18 m digital CMOS process and compare their perfor-mances based on the measurement results.