Paper Abstract and Keywords |
Presentation |
2013-07-18 11:00
2GHz-Band CMOS Direct Digital RF Modulator Using Oversampling Current-Mode DAC Osamu Wada, Suguru Kameda, Noriharu Suematsu, Tadashi Takagi, Kazuo Tsubouchi (Tohoku Univ.) MW2013-63 OPE2013-32 EST2013-27 MWP2013-22 Link to ES Tech. Rep. Archives: MW2013-63 OPE2013-32 EST2013-27 MWP2013-22 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
We have proposed a direct digital RF modulator which consists of a higher order oversampling current-mode differential DAC and LO switches attached to the output of the current-mode DAC. To reduce the spurious emission and to satisfy the spectrum mask of W-CDMA, the bit number and sampling frequency (number of oversampling orders) were designed. The modulator IC (8 bit, 100 MSample/s (25 times oversampling)) has been fabricated in 90-nm CMOS process and it achieves SNR of 57.3 dB, IM3 of -39.6 dBc and IM5 of -52.5 dBc. The spurious free (<-50 dBc/100 kHz) frequency range of 197 MHz is also obtained. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Digital RF / Modulator / DAC / CMOS / Direct Conversion / Oversampling / RFIC / |
Reference Info. |
IEICE Tech. Rep., vol. 113, no. 141, MW2013-63, pp. 97-102, July 2013. |
Paper # |
MW2013-63 |
Date of Issue |
2013-07-11 (MW, OPE, EST, MWP) |
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 |
MW2013-63 OPE2013-32 EST2013-27 MWP2013-22 Link to ES Tech. Rep. Archives: MW2013-63 OPE2013-32 EST2013-27 MWP2013-22 |
Conference Information |
Committee |
EST MWP OPE MW EMT IEE-EMT |
Conference Date |
2013-07-18 - 2013-07-19 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Wakkanai Synthesis Cultural Center |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Microwave photonic technology etc. |
Paper Information |
Registration To |
MW |
Conference Code |
2013-07-EST-MWP-OPE-MW-EMT-EMT |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
2GHz-Band CMOS Direct Digital RF Modulator Using Oversampling Current-Mode DAC |
Sub Title (in English) |
|
Keyword(1) |
Digital RF |
Keyword(2) |
Modulator |
Keyword(3) |
DAC |
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CMOS |
Keyword(5) |
Direct Conversion |
Keyword(6) |
Oversampling |
Keyword(7) |
RFIC |
Keyword(8) |
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1st Author's Name |
Osamu Wada |
1st Author's Affiliation |
Tohoku University (Tohoku Univ.) |
2nd Author's Name |
Suguru Kameda |
2nd Author's Affiliation |
Tohoku University (Tohoku Univ.) |
3rd Author's Name |
Noriharu Suematsu |
3rd Author's Affiliation |
Tohoku University (Tohoku Univ.) |
4th Author's Name |
Tadashi Takagi |
4th Author's Affiliation |
Tohoku University (Tohoku Univ.) |
5th Author's Name |
Kazuo Tsubouchi |
5th Author's Affiliation |
Tohoku University (Tohoku Univ.) |
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Speaker |
Author-1 |
Date Time |
2013-07-18 11:00:00 |
Presentation Time |
25 minutes |
Registration for |
MW |
Paper # |
MW2013-63, OPE2013-32, EST2013-27, MWP2013-22 |
Volume (vol) |
vol.113 |
Number (no) |
no.141(MW), no.142(OPE), no.143(EST), no.144(MWP) |
Page |
pp.97-102 |
#Pages |
6 |
Date of Issue |
2013-07-11 (MW, OPE, EST, MWP) |
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