Design of a pierce oscillator for CMOS SAW resonator

Development of microelectromechanical system (MEMS) based oscillators have drawn significant attention because it provides CMOS compatibility and multifrequency operations on a single chip. Recently, integrated MEMS resonators have shown great performance by attaining high quality factors and high f...

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Main Authors:	Karim, Jamilah, Nordin, Anis Nurashikin, Alam, A. H. M. Zahirul
Format:	Conference or Workshop Item
Language:	English
Published:	2012
Subjects:	TK Electrical engineering. Electronics Nuclear engineering
Online Access:	http://irep.iium.edu.my/26301/ http://irep.iium.edu.my/26301/ http://irep.iium.edu.my/26301/ http://irep.iium.edu.my/26301/1/design_of_a_pierce.pdf

id	iium-26301
recordtype	eprints
spelling	iium-263012012-12-14T00:47:00Z http://irep.iium.edu.my/26301/ Design of a pierce oscillator for CMOS SAW resonator Karim, Jamilah Nordin, Anis Nurashikin Alam, A. H. M. Zahirul TK Electrical engineering. Electronics Nuclear engineering Development of microelectromechanical system (MEMS) based oscillators have drawn significant attention because it provides CMOS compatibility and multifrequency operations on a single chip. Recently, integrated MEMS resonators have shown great performance by attaining high quality factors and high frequency operations of up to the GHz range. Of interest, is fully integrated SAW resonator which can be connected to an oscillator circuit on the same chip. For oscillator circuit simulations, the CMOS SAW resonator was modeled using its RLC equivalent circuits. The insertion loss of CMOS SAW resonator used in this design is 35.8dB, with motional resistance Rx=8.95kΩ and the motional capacitance and inductance are Cx=199aF and Lx=350uH. For a MEMS resonator to be able to function as an oscillator it needs to be coupled with supporting circuits. There are various types of supporting oscillator circuit topologies namely the pierce oscillator, differential amplifier oscillator or the transimpedance amplifier circuit topology. The topology to be chosen depends on the design requirement, the loop gain of 1 and the zero phase shifts. For this work, the pierce circuit topology was chosen due to its simplicity and high frequency stability. This simple circuit comprising of 4 transistors, helps to achieve low power consumption and excellent phase noise characteristics. This paper will present the analysis, design and the simulation result of a high gain (>; 36dB) and low power pierce circuit topology for MEMS CMOS SAW resonator. The circuit was designed in 0.18um CMOS technology and yield open loop gain >; 36dB. 2012 Conference or Workshop Item PeerReviewed application/pdf en http://irep.iium.edu.my/26301/1/design_of_a_pierce.pdf Karim, Jamilah and Nordin, Anis Nurashikin and Alam, A. H. M. Zahirul (2012) Design of a pierce oscillator for CMOS SAW resonator. In: International Conference on Computer and Communication Engineering (ICCCE 2012), 3-5 July 2012, Seri Pacific Hotel Kuala Lumpur. http://dx.doi.org/10.1109/ICCCE.2012.6271235 doi:10.1109/ICCCE.2012.6271235
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TK Electrical engineering. Electronics Nuclear engineering
spellingShingle	TK Electrical engineering. Electronics Nuclear engineering Karim, Jamilah Nordin, Anis Nurashikin Alam, A. H. M. Zahirul Design of a pierce oscillator for CMOS SAW resonator
description	Development of microelectromechanical system (MEMS) based oscillators have drawn significant attention because it provides CMOS compatibility and multifrequency operations on a single chip. Recently, integrated MEMS resonators have shown great performance by attaining high quality factors and high frequency operations of up to the GHz range. Of interest, is fully integrated SAW resonator which can be connected to an oscillator circuit on the same chip. For oscillator circuit simulations, the CMOS SAW resonator was modeled using its RLC equivalent circuits. The insertion loss of CMOS SAW resonator used in this design is 35.8dB, with motional resistance Rx=8.95kΩ and the motional capacitance and inductance are Cx=199aF and Lx=350uH. For a MEMS resonator to be able to function as an oscillator it needs to be coupled with supporting circuits. There are various types of supporting oscillator circuit topologies namely the pierce oscillator, differential amplifier oscillator or the transimpedance amplifier circuit topology. The topology to be chosen depends on the design requirement, the loop gain of 1 and the zero phase shifts. For this work, the pierce circuit topology was chosen due to its simplicity and high frequency stability. This simple circuit comprising of 4 transistors, helps to achieve low power consumption and excellent phase noise characteristics. This paper will present the analysis, design and the simulation result of a high gain (>; 36dB) and low power pierce circuit topology for MEMS CMOS SAW resonator. The circuit was designed in 0.18um CMOS technology and yield open loop gain >; 36dB.
format	Conference or Workshop Item
author	Karim, Jamilah Nordin, Anis Nurashikin Alam, A. H. M. Zahirul
author_facet	Karim, Jamilah Nordin, Anis Nurashikin Alam, A. H. M. Zahirul
author_sort	Karim, Jamilah
title	Design of a pierce oscillator for CMOS SAW resonator
title_short	Design of a pierce oscillator for CMOS SAW resonator
title_full	Design of a pierce oscillator for CMOS SAW resonator
title_fullStr	Design of a pierce oscillator for CMOS SAW resonator
title_full_unstemmed	Design of a pierce oscillator for CMOS SAW resonator
title_sort	design of a pierce oscillator for cmos saw resonator
publishDate	2012
url	http://irep.iium.edu.my/26301/ http://irep.iium.edu.my/26301/ http://irep.iium.edu.my/26301/ http://irep.iium.edu.my/26301/1/design_of_a_pierce.pdf
first_indexed	2023-09-18T20:39:12Z
last_indexed	2023-09-18T20:39:12Z
_version_	1777409251025616896

Design of a pierce oscillator for CMOS SAW resonator

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