A 65μA 8MHz on-chip oscillator with LDO regulator for low-power handheld SoC applications

J. Day; P. Vulpoiu; D. K. Johnson; J. Julich; D. Y.C. Lie

doi:10.1109/ICSICT.2008.4734964

A 65μA 8MHz on-chip oscillator with LDO regulator for low-power handheld SoC applications

J. Day, P. Vulpoiu, D. K. Johnson, J. Julich, D. Y.C. Lie

Electrical and Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Scopus citations

Abstract

This paper discusses an 8MHz square wave oscillator used for a clock signal of the digital core of a mixed signal integrated circuit (IC). The frequency is determined by a bias current that charges a capacitor until it triggers a comparator with a voltage reference as the second input. A low drop out (LDO) voltage regulator is used to supply the oscillator so that variations in the battery voltage do not affect the oscillator. The circuits have been designed and taped out and the measured results are closed to the SPICE simulated values. The oscillator has very low power consumption of 165 μW which is very attractive for a general handheld device that is operated off of a battery.

Original language	English
Title of host publication	ICSICT 2008 - 2008 9th International Conference on Solid-State and Integrated-Circuit Technology Proceedings
Pages	2027-2030
Number of pages	4
DOIs	https://doi.org/10.1109/ICSICT.2008.4734964
State	Published - 2008
Event	2008 9th International Conference on Solid-State and Integrated-Circuit Technology, ICSICT 2008 - Beijing, China Duration: Oct 20 2008 → Oct 23 2008

Publication series

Name	International Conference on Solid-State and Integrated Circuits Technology Proceedings, ICSICT

Conference

Conference	2008 9th International Conference on Solid-State and Integrated-Circuit Technology, ICSICT 2008
Country	China
City	Beijing
Period	10/20/08 → 10/23/08

Access to Document

10.1109/ICSICT.2008.4734964

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Day, J., Vulpoiu, P., Johnson, D. K., Julich, J., & Lie, D. Y. C. (2008). A 65μA 8MHz on-chip oscillator with LDO regulator for low-power handheld SoC applications. In ICSICT 2008 - 2008 9th International Conference on Solid-State and Integrated-Circuit Technology Proceedings (pp. 2027-2030). [4734964] (International Conference on Solid-State and Integrated Circuits Technology Proceedings, ICSICT). https://doi.org/10.1109/ICSICT.2008.4734964

Day, J. ; Vulpoiu, P. ; Johnson, D. K. ; Julich, J. ; Lie, D. Y.C. / A 65μA 8MHz on-chip oscillator with LDO regulator for low-power handheld SoC applications. ICSICT 2008 - 2008 9th International Conference on Solid-State and Integrated-Circuit Technology Proceedings. 2008. pp. 2027-2030 (International Conference on Solid-State and Integrated Circuits Technology Proceedings, ICSICT).

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title = "A 65μA 8MHz on-chip oscillator with LDO regulator for low-power handheld SoC applications",

abstract = "This paper discusses an 8MHz square wave oscillator used for a clock signal of the digital core of a mixed signal integrated circuit (IC). The frequency is determined by a bias current that charges a capacitor until it triggers a comparator with a voltage reference as the second input. A low drop out (LDO) voltage regulator is used to supply the oscillator so that variations in the battery voltage do not affect the oscillator. The circuits have been designed and taped out and the measured results are closed to the SPICE simulated values. The oscillator has very low power consumption of 165 μW which is very attractive for a general handheld device that is operated off of a battery.",

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Day, J, Vulpoiu, P, Johnson, DK, Julich, J & Lie, DYC 2008, A 65μA 8MHz on-chip oscillator with LDO regulator for low-power handheld SoC applications. in ICSICT 2008 - 2008 9th International Conference on Solid-State and Integrated-Circuit Technology Proceedings., 4734964, International Conference on Solid-State and Integrated Circuits Technology Proceedings, ICSICT, pp. 2027-2030, 2008 9th International Conference on Solid-State and Integrated-Circuit Technology, ICSICT 2008, Beijing, China, 10/20/08. https://doi.org/10.1109/ICSICT.2008.4734964

A 65μA 8MHz on-chip oscillator with LDO regulator for low-power handheld SoC applications. / Day, J.; Vulpoiu, P.; Johnson, D. K.; Julich, J.; Lie, D. Y.C.

ICSICT 2008 - 2008 9th International Conference on Solid-State and Integrated-Circuit Technology Proceedings. 2008. p. 2027-2030 4734964 (International Conference on Solid-State and Integrated Circuits Technology Proceedings, ICSICT).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AB - This paper discusses an 8MHz square wave oscillator used for a clock signal of the digital core of a mixed signal integrated circuit (IC). The frequency is determined by a bias current that charges a capacitor until it triggers a comparator with a voltage reference as the second input. A low drop out (LDO) voltage regulator is used to supply the oscillator so that variations in the battery voltage do not affect the oscillator. The circuits have been designed and taped out and the measured results are closed to the SPICE simulated values. The oscillator has very low power consumption of 165 μW which is very attractive for a general handheld device that is operated off of a battery.

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Day J, Vulpoiu P, Johnson DK, Julich J, Lie DYC. A 65μA 8MHz on-chip oscillator with LDO regulator for low-power handheld SoC applications. In ICSICT 2008 - 2008 9th International Conference on Solid-State and Integrated-Circuit Technology Proceedings. 2008. p. 2027-2030. 4734964. (International Conference on Solid-State and Integrated Circuits Technology Proceedings, ICSICT). https://doi.org/10.1109/ICSICT.2008.4734964