{"updated":"2025-01-19T21:55:16.261342+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00198715","sets":["6164:6165:7651:9882"]},"path":["9882"],"owner":"44499","recid":"198715","title":["Nauta OTAを用いた二次ΔΣ変調器の設計と評価"],"pubdate":{"attribute_name":"公開日","attribute_value":"2019-08-21"},"_buckets":{"deposit":"24481fc1-1522-4e10-8b84-b35462fea8a4"},"_deposit":{"id":"198715","pid":{"type":"depid","value":"198715","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"Nauta OTAを用いた二次ΔΣ変調器の設計と評価","author_link":["479689","479687","479690","479688"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Nauta OTAを用いた二次ΔΣ変調器の設計と評価"},{"subitem_title":"Design and evaluation of Second-order ΔΣ modulation using Nauta OTA","subitem_title_language":"en"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"回路設計・評価","subitem_subject_scheme":"Other"}]},"item_type_id":"18","publish_date":"2019-08-21","item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_18_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"高知工科大学"},{"subitem_text_value":"高知工科大学"}]},"item_18_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Kochi University of Technology","subitem_text_language":"en"},{"subitem_text_value":"Kochi University of Technology","subitem_text_language":"en"}]},"item_publisher":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"情報処理学会","subitem_publisher_language":"ja"}]},"publish_status":"0","weko_shared_id":-1,"item_file_price":{"attribute_name":"Billing file","attribute_type":"file","attribute_value_mlt":[{"url":{"url":"https://ipsj.ixsq.nii.ac.jp/record/198715/files/IPSJ-DAS2019026.pdf","label":"IPSJ-DAS2019026.pdf"},"date":[{"dateType":"Available","dateValue":"2021-08-21"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-DAS2019026.pdf","filesize":[{"value":"1.6 MB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"660","billingrole":"5"},{"tax":["include_tax"],"price":"330","billingrole":"6"},{"tax":["include_tax"],"price":"0","billingrole":"10"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"ed7dc974-efe3-4dea-9f10-009c47e92b70","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2019 by the Information Processing Society of Japan"}]},"item_18_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"上村, 大輔"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"橘, 昌良"}],"nameIdentifiers":[{}]}]},"item_18_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Daisuke, Uemura","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Masayoshi, Tachibana","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourceuri":"http://purl.org/coar/resource_type/c_5794","resourcetype":"conference paper"}]},"item_18_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"本研究ではA/DまたはD/A変換で使われるΔΣ変調器にNauta OTAを用いた二次ΔΣ変調回路を連続型，離散型の2つ作成し設計及びチップの作製を行った．シミュレーションにおいて各回路はΔΣ変調としての動作を示し，S/N比は一次ΔΣ変調器と比べ7dBほど改善した．試作チップは6月中旬に届き実測を行った．実測結果において連続型の変調器は40[dB/dec]のノイズシェーピングを確認することができたが離散型の実測結果は二次側フィードバックのタイミングが合わなかったため出力波形を確認することができなかった．","subitem_description_type":"Other"}]},"item_18_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"This research prepares continuous or discrete second-order ΔΣ modulation using Nauta OTA used A/D or D/A converter and conduct design and evaluation of chip circuit. In simulation, each circuit shows ΔΣ modulations behavior, and the rate of S/N improves approximately 7bB compare First-order ΔΣ modulation. The trial chips reached in the mid-June, measured the rate of S/N. In the actual results, continuous ΔΣ modulation was able to confirm noise shaping of 40[dB/dec], but discrete ΔΣ modulation could not be confirmed because the timing of the secondary feedback was not correct.","subitem_description_type":"Other"}]},"item_18_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"135","bibliographic_titles":[{"bibliographic_title":"DAシンポジウム2019論文集"}],"bibliographicPageStart":"130","bibliographicIssueDates":{"bibliographicIssueDate":"2019-08-21","bibliographicIssueDateType":"Issued"},"bibliographicVolumeNumber":"2019"}]},"relation_version_is_last":true,"weko_creator_id":"44499"},"created":"2025-01-19T01:02:53.215280+00:00","id":198715,"links":{}}