Development of low phase noise digitally controlled CMOS ring oscillator with quadrature outputs

Prapto Nugroho; Ramesh K. Pokharel; Awinash Anand; Abishek Tomar; Haruichi Kanaya; Keiji Yoshida

doi:10.1002/mop.26824

Development of low phase noise digitally controlled CMOS ring oscillator with quadrature outputs

Prapto Nugroho, Ramesh K. Pokharel, Awinash Anand, Abishek Tomar, Haruichi Kanaya, Keiji Yoshida

Research output: Contribution to journal › Article › peer-review

Abstract

This article present a development of low phase noise 14-bit digitally controlled oscillator (DCO) based on ring oscillator with quadrature output in 0.18-μm CMOS technology. Proposed design use digital control and feed-forward technique to obtain wider output swing and stable quadrature output on even number of stages respectively. Designed DCO has tuning frequency range from 212 MHz to 1 GHz. Phase noise at 1-MHz frequency offset is -123.93 dBc/Hz, which is the lowest among the recently published result.

Original language	English
Pages (from-to)	1479-1483
Number of pages	5
Journal	Microwave and Optical Technology Letters
Volume	54
Issue number	6
DOIs	https://doi.org/10.1002/mop.26824
Publication status	Published - Jun 2012

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1002/mop.26824

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abstract = "This article present a development of low phase noise 14-bit digitally controlled oscillator (DCO) based on ring oscillator with quadrature output in 0.18-μm CMOS technology. Proposed design use digital control and feed-forward technique to obtain wider output swing and stable quadrature output on even number of stages respectively. Designed DCO has tuning frequency range from 212 MHz to 1 GHz. Phase noise at 1-MHz frequency offset is -123.93 dBc/Hz, which is the lowest among the recently published result.",

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AU - Pokharel, Ramesh K.

AU - Anand, Awinash

AU - Tomar, Abishek

AU - Kanaya, Haruichi

AU - Yoshida, Keiji

PY - 2012/6

Y1 - 2012/6

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AB - This article present a development of low phase noise 14-bit digitally controlled oscillator (DCO) based on ring oscillator with quadrature output in 0.18-μm CMOS technology. Proposed design use digital control and feed-forward technique to obtain wider output swing and stable quadrature output on even number of stages respectively. Designed DCO has tuning frequency range from 212 MHz to 1 GHz. Phase noise at 1-MHz frequency offset is -123.93 dBc/Hz, which is the lowest among the recently published result.

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Development of low phase noise digitally controlled CMOS ring oscillator with quadrature outputs

Abstract

All Science Journal Classification (ASJC) codes

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