A Digitally Controlled Injection-Locked Oscillator With Fine Frequency Resolution

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Title: A Digitally Controlled Injection-Locked Oscillator With Fine Frequency Resolution
Authors: Bashir, Imran
Staszewski, Robert Bogdan
Balsara, Poras T.
Permanent link: http://hdl.handle.net/10197/8501
Date: 13-Apr-2016
Abstract: We propose a digitally controlled injection-locked RF oscillator with an auxiliary loop as an alternative to the conventional capacitive fine-tuning of an LC-tank. The oscillator is injection locked to a time-delayed version of its resonating voltage and its frequency is modulated by manipulating the phase and amplitude of injected current. The injection strength can be programmed for the DCO step size to be as fine as 9 kHz at 4 GHz. Alternatively, with large injection strength, the tuning range can reach up to 200 MHz. The proposed oscillator is experimentally verified in TSMC 40 nm digital CMOS.
Funding Details: European Research Council
Type of material: Journal Article
Publisher: IEEE
Copyright (published version): 2016 IEEE
Keywords: All-digital PLL (ADPLL);Digital phase rotator (DPR);Digital-to-frequency converter (DFC);Digitally controlled delay (DCD);Digitally controlled oscillator (DCO);Multi-stage noise ΣΔ (MASH)
DOI: 10.1109/JSSC.2016.2539342
Language: en
Status of Item: Peer reviewed
Appears in Collections:Electrical and Electronic Engineering Research Collection

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