On the amplitude and phase errors of quadrature LC-tank CMOS oscillators

Publication: Research - peer-reviewJournal article – Annual report year: 2006

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On the amplitude and phase errors of quadrature LC-tank CMOS oscillators. / Mazzanti, Andrea; Svelto, Francesco; Andreani, Pietro.

In: I E E E Journal of Solid State Circuits, Vol. 41, No. 6, 2006, p. 1305-1313.

Publication: Research - peer-reviewJournal article – Annual report year: 2006

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Mazzanti, Andrea; Svelto, Francesco; Andreani, Pietro / On the amplitude and phase errors of quadrature LC-tank CMOS oscillators.

In: I E E E Journal of Solid State Circuits, Vol. 41, No. 6, 2006, p. 1305-1313.

Publication: Research - peer-reviewJournal article – Annual report year: 2006

Bibtex

@article{9adc9685258a431cbdf411c1ee46fcad,
title = "On the amplitude and phase errors of quadrature LC-tank CMOS oscillators",
publisher = "I E E E",
author = "Andrea Mazzanti and Francesco Svelto and Pietro Andreani",
year = "2006",
doi = "10.1109/JSSC.2006.874333",
volume = "41",
number = "6",
pages = "1305--1313",
journal = "I E E E Journal of Solid State Circuits",
issn = "0018-9200",

}

RIS

TY - JOUR

T1 - On the amplitude and phase errors of quadrature LC-tank CMOS oscillators

A1 - Mazzanti,Andrea

A1 - Svelto,Francesco

A1 - Andreani,Pietro

AU - Mazzanti,Andrea

AU - Svelto,Francesco

AU - Andreani,Pietro

PB - I E E E

PY - 2006

Y1 - 2006

N2 - An analytic approach for the estimation of the phase and amplitude imbalances caused by component mismatches and parasitic magnetic fields in two popular quadrature LC oscillators is presented. Very simple and closed-form equations are derived, proving that, although the two topologies share the same small signal circuit, they display very different sensitivities to the mentioned sources of imbalance. Moreover, it is shown that parasitic inductors coupling, overlooked up to date, plays a key role ultimately limiting the achievable phase accuracy. The theoretical results are verified through extensive simulations and measurements on a 1.7-GHz quadrature oscillator and frequency up-converter implemented in a 0.18-μm CMOS process.

AB - An analytic approach for the estimation of the phase and amplitude imbalances caused by component mismatches and parasitic magnetic fields in two popular quadrature LC oscillators is presented. Very simple and closed-form equations are derived, proving that, although the two topologies share the same small signal circuit, they display very different sensitivities to the mentioned sources of imbalance. Moreover, it is shown that parasitic inductors coupling, overlooked up to date, plays a key role ultimately limiting the achievable phase accuracy. The theoretical results are verified through extensive simulations and measurements on a 1.7-GHz quadrature oscillator and frequency up-converter implemented in a 0.18-μm CMOS process.

U2 - 10.1109/JSSC.2006.874333

DO - 10.1109/JSSC.2006.874333

JO - I E E E Journal of Solid State Circuits

JF - I E E E Journal of Solid State Circuits

SN - 0018-9200

IS - 6

VL - 41

SP - 1305

EP - 1313

ER -