A Low-Jitter Cell-Based Digitally Controlled Oscillator With Differential Multiphase Outputs

Ming Chiuan Su; Shyh-Jye Jou; Wei-Zen Chen

doi:10.1109/TVLSI.2014.2314740

A Low-Jitter Cell-Based Digitally Controlled Oscillator With Differential Multiphase Outputs

Ming Chiuan Su, Shyh-Jye Jou, Wei-Zen Chen

Institute of Electronics

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

19 Scopus citations

Abstract

A low-jitter digitally controlled oscillator (DCO) with multiphase differential outputs and good linearity is presented. The DCO is composed of four differential delay cells and can achieve linear tuning over a wide frequency range. The proposed fully differential delay cell comprises logic cells in standard library and varactors. The measured rms jitter and pk-pk jitter from 2.5-GHz carrier are 2.827 and 29 ps, respectively. The power consumption is 6 mW from a 1.2 V supply. An experimental prototype is designed using 65-nm CMOS technology, and the chip area is 156 μm × 92 μ².

Original language	English
Article number	6798731
Pages (from-to)	766-770
Number of pages	5
Journal	IEEE Transactions on Very Large Scale Integration (VLSI) Systems
Volume	23
Issue number	4
DOIs	https://doi.org/10.1109/TVLSI.2014.2314740
State	Published - 1 Apr 2015

Keywords

All-digital
differential
digitally controlled oscillator (DCO)
low jitter
multiphase

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10.1109/TVLSI.2014.2314740

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abstract = "A low-jitter digitally controlled oscillator (DCO) with multiphase differential outputs and good linearity is presented. The DCO is composed of four differential delay cells and can achieve linear tuning over a wide frequency range. The proposed fully differential delay cell comprises logic cells in standard library and varactors. The measured rms jitter and pk-pk jitter from 2.5-GHz carrier are 2.827 and 29 ps, respectively. The power consumption is 6 mW from a 1.2 V supply. An experimental prototype is designed using 65-nm CMOS technology, and the chip area is 156 μm × 92 μ2.",

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AB - A low-jitter digitally controlled oscillator (DCO) with multiphase differential outputs and good linearity is presented. The DCO is composed of four differential delay cells and can achieve linear tuning over a wide frequency range. The proposed fully differential delay cell comprises logic cells in standard library and varactors. The measured rms jitter and pk-pk jitter from 2.5-GHz carrier are 2.827 and 29 ps, respectively. The power consumption is 6 mW from a 1.2 V supply. An experimental prototype is designed using 65-nm CMOS technology, and the chip area is 156 μm × 92 μ2.

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A Low-Jitter Cell-Based Digitally Controlled Oscillator With Differential Multiphase Outputs

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Keywords

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