Design of sigma-delta modulators with calibrated mixed-mode integrators보정된 혼성 모드 적분기를 이용한 시그마 델타 변조기의 설계

Cited 0 time in webofscience Cited 0 time in scopus
  • Hit : 546
  • Download : 0
DC FieldValueLanguage
dc.contributor.advisorPark, In-Cheol-
dc.contributor.advisor박인철-
dc.contributor.authorShim, Jae-Hoon-
dc.contributor.author심재훈-
dc.date.accessioned2011-12-14-
dc.date.available2011-12-14-
dc.date.issued2005-
dc.identifier.urihttp://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=245077&flag=dissertation-
dc.identifier.urihttp://hdl.handle.net/10203/35296-
dc.description학위논문(박사) - 한국과학기술원 : 전기및전자공학전공, 2005.2, [ [v], 105 p. ]-
dc.description.abstractThis thesis presents a sigma-delta modulator architecture, which is suitable for realizing high-order sigma-delta modulation with analog circuits of limited dynamic ranges. The architecture is based on a mixed-mode integrator that is a combination of an analog integrator and a digital integrator. The use of mixed-mode integrator helps make the resulting sigma-delta modulator stable. The architecture, however, relies on precise matching between analog and digital paths. A calibration technique is proposed to mitigate the effects of the mismatch. In order to verify the proposed architecture, a prototype third-order sigma-delta modulator employing mixed-mode integrators has been designed and implemented in 0.18um CMOS process. The modulator is designed to cover the required dynamic ranges for GSM and WCDMA applications. Because the use of mixed-mode integrators allows a 12 dB improvement in the dynamic range over conventional architectures, the modulator can be driven by relatively low sampling frequencies. Measurements show that the prototype chip successfully meets the required specifications. The circuit occupies 0.7mm$^2$ silicon area and dissipates 4mW from 1.8V supply voltages.eng
dc.languageeng-
dc.publisher한국과학기술원-
dc.subjectcalibration-
dc.subjectSigma-delta modulation-
dc.subjectanalog-to-digital converter-
dc.subject아날로그-디지털 변환기-
dc.subject보정-
dc.subject시그마-델타-
dc.titleDesign of sigma-delta modulators with calibrated mixed-mode integrators-
dc.title.alternative보정된 혼성 모드 적분기를 이용한 시그마 델타 변조기의 설계-
dc.typeThesis(Ph.D)-
dc.identifier.CNRN245077/325007 -
dc.description.department한국과학기술원 : 전기및전자공학전공, -
dc.identifier.uid020005174-
dc.contributor.localauthorPark, In-Cheol-
dc.contributor.localauthor박인철-
Appears in Collection
EE-Theses_Ph.D.(박사논문)
Files in This Item
There are no files associated with this item.

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0