DC Field | Value | Language |
---|---|---|
dc.contributor.author | Le, Huy-Binh | ko |
dc.contributor.author | Ryu, Seung-Tak | ko |
dc.contributor.author | Lee, Sang-Gug | ko |
dc.date.accessioned | 2013-03-11T03:05:21Z | - |
dc.date.available | 2013-03-11T03:05:21Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2009-04 | - |
dc.identifier.citation | IEICE TRANSACTIONS ON ELECTRONICS, v.E92C, pp.587 - 588 | - |
dc.identifier.issn | 0916-8524 | - |
dc.identifier.uri | http://hdl.handle.net/10203/98094 | - |
dc.description.abstract | An on-chip CMOS preamplifier for direct signal readout front an electret capacitor microphone has been designed with high immunity to common-mode and supply noise. The Gm-Opamp-RC based high impedance preamplifier helps to remove all disadvantages of the conventional JFET based amplifier and can drive a following switched-capacitor sigma-delta modulator in order to realize a compact digital electret microphone. The proposed chip is designed based on 0.18 mu m CMOS technology, and the simulation results show 86 dB of dynamic range with 4.5 mu Vrms of input-referred noise for an audio bandwidth of 20 kHz and a total harmonic distortion (THD) of 1% at 90 mVrms input. Power supply rejection ratio (PSRR) and common-mode rejection ration (CMRR) are more than 95 dB at 1 kHz. The proposed design dissipates 125 mu A and can operate over a wide supply voltage range of 1.6 V to 3.3 V. | - |
dc.language | English | - |
dc.publisher | IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG | - |
dc.title | A Fully On-Chip Gm-Opamp-RC Based Preamplifier for Electret Condenser Microphones | - |
dc.type | Article | - |
dc.identifier.wosid | 000265702800026 | - |
dc.identifier.scopusid | 2-s2.0-77950445037 | - |
dc.type.rims | ART | - |
dc.citation.volume | E92C | - |
dc.citation.beginningpage | 587 | - |
dc.citation.endingpage | 588 | - |
dc.citation.publicationname | IEICE TRANSACTIONS ON ELECTRONICS | - |
dc.identifier.doi | 10.1587/transele.E92.C.587 | - |
dc.contributor.localauthor | Ryu, Seung-Tak | - |
dc.contributor.localauthor | Lee, Sang-Gug | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | electret microphone | - |
dc.subject.keywordAuthor | preamplifier | - |
dc.subject.keywordAuthor | switched-capacitor | - |
dc.subject.keywordAuthor | sigma-delta | - |
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