Szczepkowski, Grzegorz and Farrell, Ronan (2010) Analysis and design of oscillators based on low-voltage self-oscillating active inductors. In: ISSC 2010, June 23–24 2010, UCC, Cork, Ireland.
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Abstract
This paper presents a new consistent analysis of self-oscillating active in- ductors together with a complete design example of a 90 nm CMOS current controlled oscillator (CCO) for ISMapplications. Using the proposed passive compensation method in place of a standard negative impedance converter, typical performance of active induc- tor oscillator is achieved with reduced static power consumption. The article presents a small signal, large signal and phase noise analysis of the proposed oscillator together with related design trade-offs. Theoretical results are confirmed by a simulation of cur- rent controlled oscillator designed using UMC 90 nm 1P9M RF process libraries. The proposed circuit achieves a relative tuning range of 26% with a 434 MHz carrier fre- quency and average in band phase noise of -92 dBc/Hz at 1 MHz offset. The maximum power consumption of the oscillator core is only 2 mW from a 1 V supply.
Item Type: | Conference or Workshop Item (Paper) |
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Keywords: | Active inductors; negative resistance oscillator; current controlled oscillator; CMOS; RF circuits; LTI phase noise model; |
Academic Unit: | Faculty of Science and Engineering > Electronic Engineering |
Item ID: | 3654 |
Depositing User: | Ronan Farrell |
Date Deposited: | 09 May 2012 11:30 |
Refereed: | Yes |
URI: | |
Use Licence: | This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here |
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