A Differential Clapp-VCO in 0.13 $\mu{\rm m}$ CMOS Technology

Jang, Sheng‐Lyang; Song, Yi-Jhe; Liu, Cheng-Chen

doi:10.1109/lmwc.2009.2020040

Cited by 21 publications

(1 citation statement)

References 11 publications

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“…The negative resistance and tank loss can wipe each other out. Increasing the oscillation frequency decreases the negative resistance value [111], [112]. The cross-coupled NMOS transistor operating under a subthreshold region and its tank loss and transconductance g m can be expressed as an equation (11),…”

Section: A Nmos Cross-coupled Lc Oscillatormentioning

confidence: 99%

A Comparative Study of Ring VCO and LC-VCO: Design, Performance Analysis, and Future Trends

Sivaraaj,

Majeed

2023

IEEE Access

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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. 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. Furthermore, this study investigates an in-depth exploration of VCO structures, operational principles, advantages, limitations, and performance metrics. In addition, it evaluates performance parameters, including operating frequency range, phase noise, figure of merit, and tuning techniques. This research suggests that based on the application and its requirements, the VCO performance parameters need to be varied. This survey employs diverse types of VCO, and its design methods. Implications for future research and study of VCO design and integration are discussed.

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Section: A Nmos Cross-coupled Lc Oscillatormentioning

confidence: 99%

A Comparative Study of Ring VCO and LC-VCO: Design, Performance Analysis, and Future Trends

Sivaraaj,

Majeed

2023

IEEE Access

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A low voltage balanced Clapp VCO in 0.13 micromolar CMOS technology

Jang

Liu

Song

et al. 2010

Microw. Opt. Technol. Lett.

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A balanced voltage-controlled oscillator (VCO) is designed and implemented in a 0.13 lm CMOS 1P8M process. The designed VCO circuit topology is an all nMOS LC-tank Clapp VCO using a series-tuned resonator. At the supply voltage of 0.5 V, the output phase noise of the VCO is À108.69 dBc/Hz at 1 MHz offset frequency from the carrier frequency of 17.72 GHz, and the figure of merit is À186.84 dBc/Hz. The core power consumption is 4.2 mW. Tuning range is about 3.32 GHz, from 17.55 to 20.87 GHz, while the control voltage was tuned from 0 to 1.3 V.

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A low phase noise PMOS tuned‐input tuned‐output voltage controlled oscillator in 0.18 μm CMOS technology

Nguyen

Lee

2010

Micro & Optical Tech Letters

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A low phase noise tuned‐input tuned‐output (TITO) voltage‐controlled oscillator (VCO) using PMOS transistors is presented in this article.The TITO‐VCO, implemented using a 0.18 μm RF CMOS process, resulted in a phase noise performance of −118 dBc/Hz at 1 MHz offset from the center frequency of 4.7 GHz. The figure‐of‐merit of the TITO‐VCO was 188 dB. To the author's knowledge, this is the first report on the measured performance of differential TITO‐VCO implemented using PMOS transistors. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1852–1855, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25341

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A Differential Clapp-VCO in 0.13 $\mu{\rm m}$ CMOS Technology

Cited by 21 publications

References 11 publications

A Comparative Study of Ring VCO and LC-VCO: Design, Performance Analysis, and Future Trends

A Comparative Study of Ring VCO and LC-VCO: Design, Performance Analysis, and Future Trends

A low voltage balanced Clapp VCO in 0.13 micromolar CMOS technology

A low phase noise PMOS tuned‐input tuned‐output voltage controlled oscillator in 0.18 μm CMOS technology

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