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| Presentation | 2009-12-15 14:45 Sturdy-MASH-type ΔΣAD Modulator with Wide Dynamic Range Takafumi Yamada, Hajime Konagaya (Gunma Univ), Hao San (Tokyo City Univ), Haruo Kobayashi (Gunma Univ)  ICD2009-100 Link to ES Tech. Rep. Archives: ICD2009-100 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This paper proposes a novel multi-stage noise shaping (MASH) architecture of ΔΣAD modulator which is robust against quantization noise leakage and has wide dynamic range. The MASH architecture has been widely used for low oversampling ratio (OSR) ΔΣAD modulator to solve the stability problem in a high-order modulator. However, the performance of MASH architecture ΔΣAD modulator suffers from the leakage of quantization noise which is caused by the mismatches between the analog and digital filters in the modulator. A sturdy MASH (SMASH) architecture has been proposed to relax the matching requirement with the penalty of the decreasing dynamic range of the modulator. In this paper, we present a new MASH architecture of ΔΣAD modulator. The high-order modulator is proposed similar to the MASH architecture without any stability problem, the quantization noise leakage is systematically suppressed, and the dynamic range of the modulator is improved compared to the SMASH modulator. We have performed MATLAB and SPICE simulation to verify the proposed architecture, and the simulation results prove the effectiveness of this structure. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | ΔΣAD Modulator / MASH Architecture / SMASH Architecture / Dynamic Range / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 109, no. 336, ICD2009-100, pp. 133-137, Dec. 2009. | |
| Paper # | ICD2009-100 | |
| Date of Issue | 2009-12-07 (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 | ICD2009-100 Link to ES Tech. Rep. Archives: ICD2009-100 |
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| Conference Information | |
| Committee | ICD |
| Conference Date | 2009-12-14 - 2009-12-15 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Shizuoka University (Hamamatsu) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | ICD |
| Conference Code | 2009-12-ICD |
| Language | English |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Sturdy-MASH-type ΔΣAD Modulator with Wide Dynamic Range |
| Sub Title (in English) | |
| Keyword(1) | ΔΣAD Modulator |
| Keyword(2) | MASH Architecture |
| Keyword(3) | SMASH Architecture |
| Keyword(4) | Dynamic Range |
| Keyword(5) | |
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| Keyword(8) | |
| 1st Author's Name | Takafumi Yamada |
| 1st Author's Affiliation | Gunma University (Gunma Univ) |
| 2nd Author's Name | Hajime Konagaya |
| 2nd Author's Affiliation | Gunma University (Gunma Univ) |
| 3rd Author's Name | Hao San |
| 3rd Author's Affiliation | Tokyo City University (Tokyo City Univ) |
| 4th Author's Name | Haruo Kobayashi |
| 4th Author's Affiliation | Gunma University (Gunma Univ) |
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| Speaker | Author-1 |
| Date Time | 2009-12-15 14:45:00 |
| Presentation Time | 25 minutes |
| Registration for | ICD |
| Paper # | ICD2009-100 |
| Volume (vol) | vol.109 |
| Number (no) | no.336 |
| Page | pp.133-137 |
| #Pages | 5 |
| Date of Issue | 2009-12-07 (ICD) |
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