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Paper Abstract and Keywords
Presentation 2009-09-04 09:05
Examination of EMC Macro Model LECCS-I/O with Two Current Sources Simulating Power and Output Currents of CMOS Inverter IC
Tomoya Tasaka, Norimasa Oka, Kengo Iokibe, Yoshitaka Toyota, Ryuji Koga (Okayama Univ.) EMCJ2009-35
Abstract (in Japanese) (See Japanese page) 
(in English) In the field of designing printed circuit boards (PCBs), EMC macro-models become increasingly useful
to verify EMI performance of PCB with integrated circuits (ICs). This report discussed on estimations of RF
currents due to the IC switching by using an IC EMC macro-model, LECCS-I/O, which had been developed to
simulate RF power currents of ICs. We focused on not only the RF power current but also the output current of
a CMOS I/O gate, since the EMI is caused by RF currents on both power distribution networks and signal lines.
We constructed a LECCS-I/O model with two current sources from measurements and verified the RF currents
at power and output pins, comparing to another LECCS-I/O model with a single current source. Results showed
that the both models estimate the power current with errors less than 5 dB compared to measurements up to 500
MHz. Considering the output current, the two-sources model also predicted accurately up to 500 MHz, while the
single-source model increased errors.
Keyword (in Japanese) (See Japanese page) 
(in English) EMC macro model / EMI / IC / Power current / Output current / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 185, EMCJ2009-35, pp. 1-6, Sept. 2009.
Paper # EMCJ2009-35 
Date of Issue 2009-08-28 (EMCJ) 
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)
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Conference Information
Committee EMCJ  
Conference Date 2009-09-04 - 2009-09-04 
Place (in Japanese) (See Japanese page) 
Place (in English) KEIHANNA PLAZA 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EMCJ 
Conference Code 2009-09-EMCJ 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Examination of EMC Macro Model LECCS-I/O with Two Current Sources Simulating Power and Output Currents of CMOS Inverter IC 
Sub Title (in English)  
Keyword(1) EMC macro model  
Keyword(2) EMI  
Keyword(3) IC  
Keyword(4) Power current  
Keyword(5) Output current  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Tomoya Tasaka  
1st Author's Affiliation Okayama University (Okayama Univ.)
2nd Author's Name Norimasa Oka  
2nd Author's Affiliation Okayama University (Okayama Univ.)
3rd Author's Name Kengo Iokibe  
3rd Author's Affiliation Okayama University (Okayama Univ.)
4th Author's Name Yoshitaka Toyota  
4th Author's Affiliation Okayama University (Okayama Univ.)
5th Author's Name Ryuji Koga  
5th Author's Affiliation Okayama University (Okayama Univ.)
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Speaker Author-1 
Date Time 2009-09-04 09:05:00 
Presentation Time 25 minutes 
Registration for EMCJ 
Paper # EMCJ2009-35 
Volume (vol) vol.109 
Number (no) no.185 
Page pp.1-6 
#Pages 6 
Date of Issue 2009-08-28 (EMCJ) 

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