liu.seSearch for publications in DiVA
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
A study on the decimation stage of a Δ-Σ ADC with noise-shaping loop between the stages.
Linköping University, Department of Electrical Engineering, Electronics System.
2011 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The filter complexity in the multi-stage decimation system of a Δ-Σ ADC increases progressively as one moves to higher stages of decimation due to the fact that the input word length of the higher stages also increases progressively. The main motivation for this thesis comes from the idea of investigating a way, to reduce the input word length in the later filter stages of the decimation system which could reduce the filter complexity. To achieve this, we use a noise-shaping loop between the first and later stages so that the input word length for the later stages remains smaller than in the case where we do not use the noise-shaping loop. However, the performance (SNR/ Noise-level) level should remain the same in both cases. This thesis aims at analyzing the implications of using a noise-shaping loop in between the decimation stages of a Δ-Σ ADC and also finding the appropriate decimation filter types that could be used in such a decimation system. This thesis also tries to compare the complexity introduced by using the noise-shaping loop with the reduction achieved in the later decimation stages in terms of the input word length. Filter required in the system will also be optimized using minimax optimization technique.

Place, publisher, year, edition, pages
2011. , 61 p.
Keyword [en]
Oversampling ratio, Noise-shaping, Δ-Σ ADC, Filter Optimization, FIR filter, CIC filter, Decimation
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-69319ISRN: LiTH-ISY-EX--11/4486--SEOAI: oai:DiVA.org:liu-69319DiVA: diva2:426143
Subject / course
Electronics Systems
Presentation
2011-05-04, Nollstället, Division of Electronics systems, ISY, 13:15 (English)
Uppsok
Technology
Examiners
Available from: 2011-06-28 Created: 2011-06-22 Last updated: 2011-06-29Bibliographically approved

Open Access in DiVA

TQET30_Report_ES_JK(1102 kB)822 downloads
File information
File name FULLTEXT01.pdfFile size 1102 kBChecksum SHA-512
a0b3527896f84ccf94ce30af813ca87974d2b0db0c60787b9895ecee93a1e6e5b12a1d388570d09c03178400243ba6f2c1f2e066f053232f0126ad70275bf669
Type fulltextMimetype application/pdf

By organisation
Electronics System
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar
Total: 822 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 260 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf