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Paper Abstract and Keywords
Presentation 2011-12-16 13:50
A 284-uW 1.85-GHz 20-Phase Oscillator Using Transfer Gate Phase Couplers
Keisuke Okuno, Toshihiro Konishi, Hyeokjong Lee, Shintaro Izumi, Hiroshi Kawaguchi, Masahiko Yoshimoto (Kobe Univ.) ICD2011-132 Link to ES Tech. Rep. Archives: ICD2011-132
Abstract (in Japanese) (See Japanese page) 
(in English) We propose a transfer gate phase coupler for a low-power multi-phase oscillator (MPOSC). The phase coupler is an nMOS transfer gate, which does not waste charge to the ground and thus achieves low power. The proposed MPOSC can set the number of outputs to an arbitrary number. The test circuit in a 180-nm process and a 65-nm process exhibits 20 phases, including 90° different angles. The designs in a 180-nm CMOS process and a 65-nm CMOS process were fabricated to confirm its process scalability; in the respective designs, we observed 36.6% and 38.3% improvements in a power-delay products, compared with the conventional MPOSCs using inverters and nMOS latches. In a 65-nm process, the measured DNL and 3σ period jitter are, respectively, less than ±1.22° and 5.82 ps. The power is 284μW at 1.85 GHz.
Keyword (in Japanese) (See Japanese page) 
(in English) multi-phase oscillator / transfer gate phase coupler / even-numbered phases / low-power / process scalable / / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 352, ICD2011-132, pp. 149-154, Dec. 2011.
Paper # ICD2011-132 
Date of Issue 2011-12-08 (ICD) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF ICD2011-132 Link to ES Tech. Rep. Archives: ICD2011-132

Conference Information
Committee ICD  
Conference Date 2011-12-15 - 2011-12-16 
Place (in Japanese) (See Japanese page) 
Place (in English)  
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Topics (in English)  
Paper Information
Registration To ICD 
Conference Code 2011-12-ICD 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A 284-uW 1.85-GHz 20-Phase Oscillator Using Transfer Gate Phase Couplers 
Sub Title (in English)  
Keyword(1) multi-phase oscillator  
Keyword(2) transfer gate phase coupler  
Keyword(3) even-numbered phases  
Keyword(4) low-power  
Keyword(5) process scalable  
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Keyword(8)  
1st Author's Name Keisuke Okuno  
1st Author's Affiliation Kobe Univwersity (Kobe Univ.)
2nd Author's Name Toshihiro Konishi  
2nd Author's Affiliation Kobe Univwersity (Kobe Univ.)
3rd Author's Name Hyeokjong Lee  
3rd Author's Affiliation Kobe Univwersity (Kobe Univ.)
4th Author's Name Shintaro Izumi  
4th Author's Affiliation Kobe Univwersity (Kobe Univ.)
5th Author's Name Hiroshi Kawaguchi  
5th Author's Affiliation Kobe Univwersity (Kobe Univ.)
6th Author's Name Masahiko Yoshimoto  
6th Author's Affiliation Kobe Univwersity (Kobe Univ.)
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Speaker Author-1 
Date Time 2011-12-16 13:50:00 
Presentation Time 25 minutes 
Registration for ICD 
Paper # ICD2011-132 
Volume (vol) vol.111 
Number (no) no.352 
Page pp.149-154 
#Pages
Date of Issue 2011-12-08 (ICD) 


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