Design of a feedback digitally controlled oscillator for linearity enhancement

Seok Min Jung; Janet Meiling Roveda

doi:10.1109/EDSSC.2015.7285104

Design of a feedback digitally controlled oscillator for linearity enhancement

Seok Min Jung, Janet Meiling Roveda

Electrical and Computer Engineering

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

4 Scopus citations

Abstract

This paper presents a novel feedback digitally controlled oscillator (DCO) to enhance a high linearity. Because of a negative feedback loop, the feedback DCO shows a linear relationship between an input digital control word and an output frequency. In addition, the feedback DCO has a low-pass and high-pass filtering effect on the input digital control word and a DCO noise, respectively. Hence, we are able to change and optimize the bandwidth of the feedback DCO according to the each noise sources. We designed the feedback DCO scheme in 130 nm CMOS technology. The peak-to-peak gain of the proposed feedback DCO is 17 MHz/LSB which is 96% smaller than a conventional DCO. The feedback DCO consumes 1.7 mW at 2.2 GHz output frequency.

Original language	English (US)
Title of host publication	Proceedings of the 2015 IEEE International Conference on Electron Devices and Solid-State Circuits, EDSSC 2015
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	277-280
Number of pages	4
ISBN (Electronic)	9781479983636
DOIs	https://doi.org/10.1109/EDSSC.2015.7285104
State	Published - Sep 30 2015
Event	11th IEEE International Conference on Electron Devices and Solid-State Circuits, EDSSC 2015 - Singapore, Singapore Duration: Jun 1 2015 → Jun 4 2015

Publication series

Name	Proceedings of the 2015 IEEE International Conference on Electron Devices and Solid-State Circuits, EDSSC 2015

Other

Other	11th IEEE International Conference on Electron Devices and Solid-State Circuits, EDSSC 2015
Country/Territory	Singapore
City	Singapore
Period	6/1/15 → 6/4/15

Keywords

digitally controlled oscillator (DCO)
feedback DCO
linearity

ASJC Scopus subject areas

Electrical and Electronic Engineering

Access to Document

10.1109/EDSSC.2015.7285104

Cite this

Jung, S. M., & Roveda, J. M. (2015). Design of a feedback digitally controlled oscillator for linearity enhancement. In Proceedings of the 2015 IEEE International Conference on Electron Devices and Solid-State Circuits, EDSSC 2015 (pp. 277-280). Article 7285104 (Proceedings of the 2015 IEEE International Conference on Electron Devices and Solid-State Circuits, EDSSC 2015). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/EDSSC.2015.7285104

Design of a feedback digitally controlled oscillator for linearity enhancement. / Jung, Seok Min; Roveda, Janet Meiling.
Proceedings of the 2015 IEEE International Conference on Electron Devices and Solid-State Circuits, EDSSC 2015. Institute of Electrical and Electronics Engineers Inc., 2015. p. 277-280 7285104 (Proceedings of the 2015 IEEE International Conference on Electron Devices and Solid-State Circuits, EDSSC 2015).

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

Jung, SM & Roveda, JM 2015, Design of a feedback digitally controlled oscillator for linearity enhancement. in Proceedings of the 2015 IEEE International Conference on Electron Devices and Solid-State Circuits, EDSSC 2015., 7285104, Proceedings of the 2015 IEEE International Conference on Electron Devices and Solid-State Circuits, EDSSC 2015, Institute of Electrical and Electronics Engineers Inc., pp. 277-280, 11th IEEE International Conference on Electron Devices and Solid-State Circuits, EDSSC 2015, Singapore, Singapore, 6/1/15. https://doi.org/10.1109/EDSSC.2015.7285104

Jung SM, Roveda JM. Design of a feedback digitally controlled oscillator for linearity enhancement. In Proceedings of the 2015 IEEE International Conference on Electron Devices and Solid-State Circuits, EDSSC 2015. Institute of Electrical and Electronics Engineers Inc. 2015. p. 277-280. 7285104. (Proceedings of the 2015 IEEE International Conference on Electron Devices and Solid-State Circuits, EDSSC 2015). doi: 10.1109/EDSSC.2015.7285104

Jung, Seok Min ; Roveda, Janet Meiling. / Design of a feedback digitally controlled oscillator for linearity enhancement. Proceedings of the 2015 IEEE International Conference on Electron Devices and Solid-State Circuits, EDSSC 2015. Institute of Electrical and Electronics Engineers Inc., 2015. pp. 277-280 (Proceedings of the 2015 IEEE International Conference on Electron Devices and Solid-State Circuits, EDSSC 2015).

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abstract = "This paper presents a novel feedback digitally controlled oscillator (DCO) to enhance a high linearity. Because of a negative feedback loop, the feedback DCO shows a linear relationship between an input digital control word and an output frequency. In addition, the feedback DCO has a low-pass and high-pass filtering effect on the input digital control word and a DCO noise, respectively. Hence, we are able to change and optimize the bandwidth of the feedback DCO according to the each noise sources. We designed the feedback DCO scheme in 130 nm CMOS technology. The peak-to-peak gain of the proposed feedback DCO is 17 MHz/LSB which is 96% smaller than a conventional DCO. The feedback DCO consumes 1.7 mW at 2.2 GHz output frequency.",

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AB - This paper presents a novel feedback digitally controlled oscillator (DCO) to enhance a high linearity. Because of a negative feedback loop, the feedback DCO shows a linear relationship between an input digital control word and an output frequency. In addition, the feedback DCO has a low-pass and high-pass filtering effect on the input digital control word and a DCO noise, respectively. Hence, we are able to change and optimize the bandwidth of the feedback DCO according to the each noise sources. We designed the feedback DCO scheme in 130 nm CMOS technology. The peak-to-peak gain of the proposed feedback DCO is 17 MHz/LSB which is 96% smaller than a conventional DCO. The feedback DCO consumes 1.7 mW at 2.2 GHz output frequency.

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Design of a feedback digitally controlled oscillator for linearity enhancement

Abstract

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Keywords

ASJC Scopus subject areas

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