An inverted ring oscillator noise-shaping time-to-digital converter with in-band noise reduction and coherent noise cancellation
This article presents a noise-shaping time-to-digital converter (TDC) based on an inverted ring oscillator (IRO). By inverting the oscillation direction, the proposed IRO-TDC achieves quantization error and mismatch noise shaping, in-band noise reduction, coherent noise cancellation, and low disturb...
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sg-ntu-dr.10356-1447272020-11-20T09:01:54Z An inverted ring oscillator noise-shaping time-to-digital converter with in-band noise reduction and coherent noise cancellation Yi, Xiang Liang, Zhipeng Boon, Chirn Chye Feng, Guangyin Meng, Fanyi Yang, Kaituo School of Electrical and Electronic Engineering VIRTUS, IC Design Centre of Excellence Engineering::Electrical and electronic engineering CMOS Digital Phase-Locked Loop (DPLL) Controlled Oscillator-Based Time-To-Digital Converter (TDC) This article presents a noise-shaping time-to-digital converter (TDC) based on an inverted ring oscillator (IRO). By inverting the oscillation direction, the proposed IRO-TDC achieves quantization error and mismatch noise shaping, in-band noise reduction, coherent noise cancellation, and low disturbance to power supply at the same time. A noise model is proposed to analyze the noise performance of the proposed TDC, and to compare its noise with TDCs based on gated ring oscillator (GRO) and switched ring oscillator (SRO). An IRO-TDC prototype is fabricated in a 65 nm CMOS technology to verify the proposed IRO technique and noise model. With a sampling rate of 200 MS/s, the TDC achieves an integrated noise of 196 fsrms in a 3 MHz bandwidth with a constant power dissipation of 13.2 mW. The measured coherent noise cancellation ratio is up to 36.4 dB. To the best of our knowledge, this is the first demonstration of an oscillator utilizing oscillation inversion for noise reduction and coherent cancellation to protect the TDC from power supply noise, ground noise, and substrate noise. Due to its noise cancellation and low disturbance to power supply, the proposed IRO technique also alleviates the design complexity of power supply in future TDC applications. Accepted version 2020-11-20T08:55:00Z 2020-11-20T08:55:00Z 2019 Journal Article Yi, X., Liang, Z., Boon, C. C., Feng, G., Meng, F., & Yang, K. (2019). An inverted ring oscillator noise-shaping time-to-digital converter with in-band noise reduction and coherent noise cancellation. IEEE Transactions on Circuits and Systems I: Regular Papers, 67(2), 686-698. doi:10.1109/TCSI.2019.2949732 1558-0806 https://hdl.handle.net/10356/144727 10.1109/TCSI.2019.2949732 2 67 686 698 en IEEE Transactions on Circuits and Systems I: Regular Papers © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work is available at: https://doi.org/10.1109/TCSI.2019.2949732 application/pdf |
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Engineering::Electrical and electronic engineering CMOS Digital Phase-Locked Loop (DPLL) Controlled Oscillator-Based Time-To-Digital Converter (TDC) Yi, Xiang Liang, Zhipeng Boon, Chirn Chye Feng, Guangyin Meng, Fanyi Yang, Kaituo An inverted ring oscillator noise-shaping time-to-digital converter with in-band noise reduction and coherent noise cancellation |
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This article presents a noise-shaping time-to-digital converter (TDC) based on an inverted ring oscillator (IRO). By inverting the oscillation direction, the proposed IRO-TDC achieves quantization error and mismatch noise shaping, in-band noise reduction, coherent noise cancellation, and low disturbance to power supply at the same time. A noise model is proposed to analyze the noise performance of the proposed TDC, and to compare its noise with TDCs based on gated ring oscillator (GRO) and switched ring oscillator (SRO). An IRO-TDC prototype is fabricated in a 65 nm CMOS technology to verify the proposed IRO technique and noise model. With a sampling rate of 200 MS/s, the TDC achieves an integrated noise of 196 fsrms in a 3 MHz bandwidth with a constant power dissipation of 13.2 mW. The measured coherent noise cancellation ratio is up to 36.4 dB. To the best of our knowledge, this is the first demonstration of an oscillator utilizing oscillation inversion for noise reduction and coherent cancellation to protect the TDC from power supply noise, ground noise, and substrate noise. Due to its noise cancellation and low disturbance to power supply, the proposed IRO technique also alleviates the design complexity of power supply in future TDC applications. |
author2 |
School of Electrical and Electronic Engineering |
author_facet |
School of Electrical and Electronic Engineering Yi, Xiang Liang, Zhipeng Boon, Chirn Chye Feng, Guangyin Meng, Fanyi Yang, Kaituo |
format |
Article |
author |
Yi, Xiang Liang, Zhipeng Boon, Chirn Chye Feng, Guangyin Meng, Fanyi Yang, Kaituo |
author_sort |
Yi, Xiang |
title |
An inverted ring oscillator noise-shaping time-to-digital converter with in-band noise reduction and coherent noise cancellation |
title_short |
An inverted ring oscillator noise-shaping time-to-digital converter with in-band noise reduction and coherent noise cancellation |
title_full |
An inverted ring oscillator noise-shaping time-to-digital converter with in-band noise reduction and coherent noise cancellation |
title_fullStr |
An inverted ring oscillator noise-shaping time-to-digital converter with in-band noise reduction and coherent noise cancellation |
title_full_unstemmed |
An inverted ring oscillator noise-shaping time-to-digital converter with in-band noise reduction and coherent noise cancellation |
title_sort |
inverted ring oscillator noise-shaping time-to-digital converter with in-band noise reduction and coherent noise cancellation |
publishDate |
2020 |
url |
https://hdl.handle.net/10356/144727 |
_version_ |
1688665356011307008 |