digitally controlled oscillator (DCO)

A Pseudo-Series Resonance CMOS Oscillator

A Pseudo-Series Resonance CMOS Oscillator 150 150

Abstract:

This article presents a single-core, low-phase-noise (PN) digitally controlled oscillator (DCO) employing a pseudo-series resonance (pseudo-SR) technique with a transformer-based resonator. The proposed pseudo-SR resonator offers two key advantages: 1) a low impedance with a 180° phase shift at the impedance pole, emulating series resonance (SR) to enable single-stage oscillation and reduce …

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