Frequency Resolution Enhancement for Digitally-Controlled Oscillator Based on a Single-Period Switching Scheme

Kazutoshi KODAMA; Tetsuya IIZUKA; Toru NAKURA; Kunihiro ASADA

doi:10.1587/transele.E95.C.1857

Frequency Resolution Enhancement for Digitally-Controlled Oscillator Based on a Single-Period Switching Scheme

Kazutoshi KODAMA, Tetsuya IIZUKA, Toru NAKURA, Kunihiro ASADA

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This paper proposes a high frequency resolution Digitally-Controlled Oscillator (DCO) using a single-period control bit switching scheme. The proposed scheme controls the tuning word of DCO in a single period for the fine frequency tuning. The LC type DCO is implemented to realize the proposed scheme, and is fabricated using a standard 65 nm CMOS technology. The measurement results show that the implemented DCO improves the frequency resolution from 560 kHz to 180 kHz without phase noise degradation with an additional area of 200 µm².

Publication: IEICE TRANSACTIONS on Electronics Vol.E95-C No.12 pp.1857-1863

Publication Date: 2012/12/01

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Online ISSN: 1745-1353

DOI: 10.1587/transele.E95.C.1857

Type of Manuscript: PAPER

Category: Electronic Circuits

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Kazutoshi KODAMA, Tetsuya IIZUKA, Toru NAKURA, Kunihiro ASADA, "Frequency Resolution Enhancement for Digitally-Controlled Oscillator Based on a Single-Period Switching Scheme" in IEICE TRANSACTIONS on Electronics, vol. E95-C, no. 12, pp. 1857-1863, December 2012, doi: 10.1587/transele.E95.C.1857.
Abstract: This paper proposes a high frequency resolution Digitally-Controlled Oscillator (DCO) using a single-period control bit switching scheme. The proposed scheme controls the tuning word of DCO in a single period for the fine frequency tuning. The LC type DCO is implemented to realize the proposed scheme, and is fabricated using a standard 65 nm CMOS technology. The measurement results show that the implemented DCO improves the frequency resolution from 560 kHz to 180 kHz without phase noise degradation with an additional area of 200 µm².
URL: https://globals.ieice.org/en_transactions/electronics/10.1587/transele.E95.C.1857/_p

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@ARTICLE{e95-c_12_1857,
author={Kazutoshi KODAMA, Tetsuya IIZUKA, Toru NAKURA, Kunihiro ASADA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Frequency Resolution Enhancement for Digitally-Controlled Oscillator Based on a Single-Period Switching Scheme},
year={2012},
volume={E95-C},
number={12},
pages={1857-1863},
abstract={This paper proposes a high frequency resolution Digitally-Controlled Oscillator (DCO) using a single-period control bit switching scheme. The proposed scheme controls the tuning word of DCO in a single period for the fine frequency tuning. The LC type DCO is implemented to realize the proposed scheme, and is fabricated using a standard 65 nm CMOS technology. The measurement results show that the implemented DCO improves the frequency resolution from 560 kHz to 180 kHz without phase noise degradation with an additional area of 200 µm².},
keywords={},
doi={10.1587/transele.E95.C.1857},
ISSN={1745-1353},
month={December},}

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TY - JOUR
TI - Frequency Resolution Enhancement for Digitally-Controlled Oscillator Based on a Single-Period Switching Scheme
T2 - IEICE TRANSACTIONS on Electronics
SP - 1857
EP - 1863
AU - Kazutoshi KODAMA
AU - Tetsuya IIZUKA
AU - Toru NAKURA
AU - Kunihiro ASADA
PY - 2012
DO - 10.1587/transele.E95.C.1857
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E95-C
IS - 12
JA - IEICE TRANSACTIONS on Electronics
Y1 - December 2012
AB - This paper proposes a high frequency resolution Digitally-Controlled Oscillator (DCO) using a single-period control bit switching scheme. The proposed scheme controls the tuning word of DCO in a single period for the fine frequency tuning. The LC type DCO is implemented to realize the proposed scheme, and is fabricated using a standard 65 nm CMOS technology. The measurement results show that the implemented DCO improves the frequency resolution from 560 kHz to 180 kHz without phase noise degradation with an additional area of 200 µm².
ER -