RF stress effects on CMOS LC-loaded VCO reliability evaluated by experiments

Yen, Hsuan-Der; Yuan, J.S.; Wang, R.L.; Huang, Guo–Wei; Yeh, Wen–Kuan; Huang, Fon-Shan

doi:10.1016/j.microrel.2012.04.007

Cited by 5 publications

(1 citation statement)

References 25 publications

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“…Radio Frequency (RF) voltage controlled oscillators (VCO) play a fundamental role in modern communications, signal processing, measurement systems and other applications. There are two popular types of RF VCO: ring oscillators [1][2][3] and negative resistance oscillators with inductor-capacitor (LC) tank [4][5][6]. Since the inductor of LC tank occupies large area, the ring oscillators have the advantage of smaller chip size [7].…”

Section: Introductionmentioning

confidence: 99%

A New Technique for the Design of Multi-Phase Voltage Controlled Oscillators

Sun

Huang

Sun

2017

J CIRCUIT SYST COMP

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This document is the Accepted Manuscript version of an article published as Jingru Sun, Pan Huang, and Yichuang Sun, ???A new technique for the design of multi-phase voltage controlled oscillators???, Journal of Circuits, Systems and Computes, Vol. 26 (7), 2017, 13 pp., article DOI: http://dx.doi.org/10.1142/S0218126617501134. Under embargo. Embargo end date: 9 February 2018. ?? 2017 World Scientific Publishing Company.In this work, a novel circuit structure for second-harmonic multi-phase voltage controlled oscillator (MVCO) is presented. The proposed MVCO is composed of (Formula presented.) ((Formula presented.) being an integer number and (Formula presented.)2) identical inductor???capacitor ((Formula presented.)) tank VCOs. In theory, this MVCO can provide 2(Formula presented.) different phase sinusoidal signals. A six-phase VCO based on the proposed structure is designed in a TSMC 0.18(Formula presented.)um CMOS process. Simulation results show that at the supply voltage of 0.8(Formula presented.)V, the total power consumption of the six-phase VCO circuit is about 1(Formula presented.)mW, the oscillation frequency is tunable from 2.3(Formula presented.)GHz to 2.5(Formula presented.)GHz when the control voltage varies from 0(Formula presented.)V to 0.8(Formula presented.)V, and the phase noise is lower than (Formula presented.)128(Formula presented.)dBc/Hz at 1(Formula presented.)MHz offset frequency. The proposed MVCO has lower phase noise, lower power consumption and more outputs than other related works in the literature

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