Pulsed bias is an attempt to improve the performance of oscillators in integrated circuits as a result of architectural innovation. Given the relatively low value of resonator quality factor achievable on-chip, for a specified bias voltage level, pulsed bias may result in a lower power consumption and in an improvement of the spectral purity of the oscillation. The main drawback of this approach is the need to introduce a certain time delay in order to properly position pulses with respect to oscillation waveform. Delay accumulation requires further energy dissipation and introduce additional jitter. In this paper we present a new architecture capable to avoid unnecessary delay, based on the idea to apply the pulsed bias approach to a quadrature oscillator. A first circuit-level implementation of this concept is presented with simulation results.

Phase and quadrature pulsed bias LC CMOS VCO / Perticaroli, Stefano; Palma, Fabrizio; A., Carbone. - In: CIRCUITS AND SYSTEMS. - ISSN 2153-1285. - 02:01(2011), pp. 18-24. [10.4236/cs.2011.21004]

Phase and quadrature pulsed bias LC CMOS VCO

PERTICAROLI, STEFANO;PALMA, Fabrizio;
2011

Abstract

Pulsed bias is an attempt to improve the performance of oscillators in integrated circuits as a result of architectural innovation. Given the relatively low value of resonator quality factor achievable on-chip, for a specified bias voltage level, pulsed bias may result in a lower power consumption and in an improvement of the spectral purity of the oscillation. The main drawback of this approach is the need to introduce a certain time delay in order to properly position pulses with respect to oscillation waveform. Delay accumulation requires further energy dissipation and introduce additional jitter. In this paper we present a new architecture capable to avoid unnecessary delay, based on the idea to apply the pulsed bias approach to a quadrature oscillator. A first circuit-level implementation of this concept is presented with simulation results.
2011
floquet eigenvectors noise decomposition; phase and quadrature vco; pulsed bias oscillator
01 Pubblicazione su rivista::01a Articolo in rivista
Phase and quadrature pulsed bias LC CMOS VCO / Perticaroli, Stefano; Palma, Fabrizio; A., Carbone. - In: CIRCUITS AND SYSTEMS. - ISSN 2153-1285. - 02:01(2011), pp. 18-24. [10.4236/cs.2011.21004]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/407883
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