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Paper Abstract and Keywords
Presentation 2017-08-02 14:10
A Quadrature-modulation EPWM Transmitter with Parallel-Output MASH Delta-Sigma Modulator
Takumi Yamamoto, Yohtaro Umeda (Tokyo Univ. of Science), Yusuke Kozawa (Ibaraki Univ.) SDM2017-48 ICD2017-36
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, Multi StAge Noise Shaping (MASH) architecture is employed to realize high noise reduction capability by noise shaping of ΔΣ modulator in quadrature-modulation envelope pulse width modulation (QM-EPWM). In the conventional ΔΣ modulator, it is disadvantageous that instability occurs in the third or higher order architecture. Therefore, by using MASH, it is possible to construct a modulator with high noise shaping with the same stability as the 1st-order one. However, as a harmful effect of using MASH, the output of the ΔΣ modulator is multi-level and it is impossible to digitally up-convert and output alternately using binary digital circuit. Therefore, in this paper we propose the parallel output MASH (PO-MASH) and QM-EPWM transmitter which use binary digital signal processing. However, since this uses a multi-level input digital amplifier. Therefore, we proposed using parallel / serial conversion not to use it. P/S is possible to up-convert and alternate output. We also performed a simulation using MATLAB. As a result, it was found that the modulation accuracy (EVM) relatively improved as compared with the transmitter using the conventional ΔΣ modulator.
Keyword (in Japanese) (See Japanese page) 
(in English) transmitter / quadrature-modulation envelope pulse width modulation / ΔΣ modulator / Multi StAge noise Shaping / parallel output MASH / parallel / serial conversion / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 167, ICD2017-36, pp. 123-128, July 2017.
Paper # ICD2017-36 
Date of Issue 2017-07-24 (SDM, ICD) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction		 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 SDM2017-48 ICD2017-36

Conference Information
Committee SDM ICD ITE-IST  
Conference Date 2017-07-31 - 2017-08-02 
Place (in Japanese) (See Japanese page) 
Place (in English) Hokkaido-Univ. Multimedia Education Bldg. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Analog, Mixed Analog and Digital, RF, and Sensor Interface, Low voltage/low power techniques, novel devices, circuits, and applications 
Paper Information
Registration To ICD 
Conference Code 2017-07-SDM-ICD-IST 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Quadrature-modulation EPWM Transmitter with Parallel-Output MASH Delta-Sigma Modulator 
Sub Title (in English)  
Keyword(1) transmitter  
Keyword(2) quadrature-modulation envelope pulse width modulation  
Keyword(3) ΔΣ modulator  
Keyword(4) Multi StAge noise Shaping  
Keyword(5) parallel output MASH  
Keyword(6) parallel / serial conversion  
Keyword(7)  
Keyword(8)  
1st Author's Name Takumi Yamamoto  
1st Author's Affiliation Tokyo University of Science (Tokyo Univ. of Science)
2nd Author's Name Yohtaro Umeda  
2nd Author's Affiliation Tokyo University of Science (Tokyo Univ. of Science)
3rd Author's Name Yusuke Kozawa  
3rd Author's Affiliation Ibaraki University (Ibaraki Univ.)
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Speaker Author-1 
Date Time 2017-08-02 14:10:00 
Presentation Time 25 minutes 
Registration for ICD 
Paper # SDM2017-48, ICD2017-36 
Volume (vol) vol.117 
Number (no) no.166(SDM), no.167(ICD) 
Page pp.123-128 
#Pages 6 
Date of Issue 2017-07-24 (SDM, ICD) 

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