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Research on Characteristics of Audio DAC Sigma-Delta Modulator on Field Programmable Gate Array.

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Title: Research on Characteristics of Audio DAC Sigma-Delta Modulator on Field Programmable Gate Array.
Alternate Title: Garso moduliatoriaus Sigma-Delta SAK su lauku programuojama logine matrica charakteristikų tyrimas.
Authors: Puidokas, V.1 Vytenis.Puidokas@yahoo.com, Marcinkevičius, A. J.1 Albinas.Marcinkevicius@el.vgtu.lt
Source: Electronics & Electrical Engineering. 2008, Issue 85, p97-100. 4p. 4 Diagrams, 8 Graphs.
Subjects: Computer sound processing, Electronic modulators, Acoustic filters, Numerical analysis, Architectural design
Abstract (English): The original architectural scheme of a designed audio Sigma Delta DAC on the FPGA whose application in a computer sound system allows refusing of an analogue sound track and improving the sound quality is presented. Modelling results of the audio interpolator filters transmission characteristics and the Sigma Delta modulator's quantization noise parameters are given. It was determined that requirements are met best by a CIC filter amplitude frequency characteristics when the interpolation multiplier is L=8, the number of stages is N=6, the input string length is 16 bits, the output string length is 31 bits, and the discretization frequency is 2.8224 MHz. The results of the modulator modelling showed that when a sound signal frequency band is of 20 kHz the modulator's effective number of bits is 16, while the quantization noise power is minus 118dB. The modelling results are also proven by the experimental research when a DAC has been realized with Xilinx Spartan XC3S400-4PQ208 on the array. [ABSTRACT FROM AUTHOR]
Abstract (Lithuanian): Pateikta originali garso moduliatoriaus Sigma Delta SAK su LPL matrica (angl. FPGA) sandaros schema, kurią naudojant kompiuterio garso sistemoje galima atsisakyti analoginio garso trakto ir pagerinti garso kokybę. Pateikti garso interpoliatoriaus filtrų perdavimo charakteristikų ir Sigma Delta moduliatoriaus signalo ir triukšmo parametrų modeliavimo rezultatai. Nustatyta, kad geriausiai reikalavimus tenkina pakopinio diferenciatorių integratorių (angl. CIC) filtro dažninė amplitudės charakteristika, kai interpoliacijos daugiklis L = 8, pakopų skaičius N = 6, įėjimo žodžio ilgis — 16 bitų ir diskretizacijos dažnis — 2,8224 MHz. Moduliatoriaus tyrimo rezultatai parodė, kad, esant garsinio signalo dažnio juostai 20 kHz, efektyvus bitų skaičius — 16, kvantavimo triukšmo galia minus 118 dB. Modeliavimo rezultatus patvirtina ir eksperimentinis tyrimas, kai SAK realizuotas Xilinx Spartan XC3S400-4PQ208PL LPL matricoje. [ABSTRACT FROM AUTHOR]
Copyright of Electronics & Electrical Engineering is the property of Electronics & Electrical Engineering and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 33286958
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Research on Characteristics of Audio DAC Sigma-Delta Modulator on Field Programmable Gate Array.
– Name: TitleAlt
  Label: Alternate Title
  Group: TiAlt
  Data: Garso moduliatoriaus Sigma-Delta SAK su lauku programuojama logine matrica charakteristikų tyrimas.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Puidokas%2C+V%2E%22">Puidokas, V.</searchLink><relatesTo>1</relatesTo><i> Vytenis.Puidokas@yahoo.com</i><br /><searchLink fieldCode="AR" term="%22Marcinkevičius%2C+A%2E+J%2E%22">Marcinkevičius, A. J.</searchLink><relatesTo>1</relatesTo><i> Albinas.Marcinkevicius@el.vgtu.lt</i>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Electronics+%26+Electrical+Engineering%22">Electronics & Electrical Engineering</searchLink>. 2008, Issue 85, p97-100. 4p. 4 Diagrams, 8 Graphs.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Computer+sound+processing%22">Computer sound processing</searchLink><br /><searchLink fieldCode="DE" term="%22Electronic+modulators%22">Electronic modulators</searchLink><br /><searchLink fieldCode="DE" term="%22Acoustic+filters%22">Acoustic filters</searchLink><br /><searchLink fieldCode="DE" term="%22Numerical+analysis%22">Numerical analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Architectural+design%22">Architectural design</searchLink>
– Name: Abstract
  Label: Abstract (English)
  Group: Ab
  Data: The original architectural scheme of a designed audio Sigma Delta DAC on the FPGA whose application in a computer sound system allows refusing of an analogue sound track and improving the sound quality is presented. Modelling results of the audio interpolator filters transmission characteristics and the Sigma Delta modulator's quantization noise parameters are given. It was determined that requirements are met best by a CIC filter amplitude frequency characteristics when the interpolation multiplier is L=8, the number of stages is N=6, the input string length is 16 bits, the output string length is 31 bits, and the discretization frequency is 2.8224 MHz. The results of the modulator modelling showed that when a sound signal frequency band is of 20 kHz the modulator's effective number of bits is 16, while the quantization noise power is minus 118dB. The modelling results are also proven by the experimental research when a DAC has been realized with Xilinx Spartan XC3S400-4PQ208 on the array. [ABSTRACT FROM AUTHOR]
– Name: Abstract
  Label: Abstract (Lithuanian)
  Group: Ab
  Data: Pateikta originali garso moduliatoriaus Sigma Delta SAK su LPL matrica (angl. FPGA) sandaros schema, kurią naudojant kompiuterio garso sistemoje galima atsisakyti analoginio garso trakto ir pagerinti garso kokybę. Pateikti garso interpoliatoriaus filtrų perdavimo charakteristikų ir Sigma Delta moduliatoriaus signalo ir triukšmo parametrų modeliavimo rezultatai. Nustatyta, kad geriausiai reikalavimus tenkina pakopinio diferenciatorių integratorių (angl. CIC) filtro dažninė amplitudės charakteristika, kai interpoliacijos daugiklis L = 8, pakopų skaičius N = 6, įėjimo žodžio ilgis — 16 bitų ir diskretizacijos dažnis — 2,8224 MHz. Moduliatoriaus tyrimo rezultatai parodė, kad, esant garsinio signalo dažnio juostai 20 kHz, efektyvus bitų skaičius — 16, kvantavimo triukšmo galia minus 118 dB. Modeliavimo rezultatus patvirtina ir eksperimentinis tyrimas, kai SAK realizuotas Xilinx Spartan XC3S400-4PQ208PL LPL matricoje. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Electronics & Electrical Engineering is the property of Electronics & Electrical Engineering and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 4
        StartPage: 97
    Subjects:
      – SubjectFull: Computer sound processing
        Type: general
      – SubjectFull: Electronic modulators
        Type: general
      – SubjectFull: Acoustic filters
        Type: general
      – SubjectFull: Numerical analysis
        Type: general
      – SubjectFull: Architectural design
        Type: general
    Titles:
      – TitleFull: Research on Characteristics of Audio DAC Sigma-Delta Modulator on Field Programmable Gate Array.
        Type: main
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    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Puidokas, V.
      – PersonEntity:
          Name:
            NameFull: Marcinkevičius, A. J.
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          Dates:
            – D: 01
              M: 06
              Text: 2008
              Type: published
              Y: 2008
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              Value: 85
          Titles:
            – TitleFull: Electronics & Electrical Engineering
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