DE69424839D1 - Sigma-Delta Analog-Digital Konverter mit einem Filter mit definierter Nullstellen-Pol-Verteilung und Gerät dafür - Google Patents

Sigma-Delta Analog-Digital Konverter mit einem Filter mit definierter Nullstellen-Pol-Verteilung und Gerät dafür

Info

Publication number
DE69424839D1
DE69424839D1 DE69424839T DE69424839T DE69424839D1 DE 69424839 D1 DE69424839 D1 DE 69424839D1 DE 69424839 T DE69424839 T DE 69424839T DE 69424839 T DE69424839 T DE 69424839T DE 69424839 D1 DE69424839 D1 DE 69424839D1
Authority
DE
Germany
Prior art keywords
sigma
filter
digital converter
delta analog
pole distribution
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE69424839T
Other languages
English (en)
Other versions
DE69424839T2 (de
Inventor
Leopold Ernest Pellon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lockheed Martin Corp
Original Assignee
Lockheed Corp
Lockheed Martin Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lockheed Corp, Lockheed Martin Corp filed Critical Lockheed Corp
Application granted granted Critical
Publication of DE69424839D1 publication Critical patent/DE69424839D1/de
Publication of DE69424839T2 publication Critical patent/DE69424839T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation
    • H03M3/39—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
    • H03M3/402—Arrangements specific to bandpass modulators
    • H03M3/404—Arrangements specific to bandpass modulators characterised by the type of bandpass filters used
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation
    • H03M3/39—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
    • H03M3/412—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution
    • H03M3/422—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only
    • H03M3/424—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only the quantiser being a multiple bit one
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation
    • H03M3/39—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
    • H03M3/436—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type
    • H03M3/438—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type the modulator having a higher order loop filter in the feedforward path
    • H03M3/452—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type the modulator having a higher order loop filter in the feedforward path with weighted feedforward summation, i.e. with feedforward paths from more than one filter stage to the quantiser input

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Radar Systems Or Details Thereof (AREA)
DE69424839T 1993-08-05 1994-07-28 Sigma-Delta Analog-Digital Konverter mit einem Filter mit definierter Nullstellen-Pol-Verteilung und Gerät dafür Expired - Fee Related DE69424839T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/102,362 US5392042A (en) 1993-08-05 1993-08-05 Sigma-delta analog-to-digital converter with filtration having controlled pole-zero locations, and apparatus therefor

Publications (2)

Publication Number Publication Date
DE69424839D1 true DE69424839D1 (de) 2000-07-13
DE69424839T2 DE69424839T2 (de) 2000-10-12

Family

ID=22289449

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69424839T Expired - Fee Related DE69424839T2 (de) 1993-08-05 1994-07-28 Sigma-Delta Analog-Digital Konverter mit einem Filter mit definierter Nullstellen-Pol-Verteilung und Gerät dafür

Country Status (4)

Country Link
US (1) US5392042A (de)
EP (1) EP0643488B1 (de)
JP (1) JP3244597B2 (de)
DE (1) DE69424839T2 (de)

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Also Published As

Publication number Publication date
EP0643488A1 (de) 1995-03-15
JPH07312555A (ja) 1995-11-28
US5392042A (en) 1995-02-21
EP0643488B1 (de) 2000-06-07
JP3244597B2 (ja) 2002-01-07
DE69424839T2 (de) 2000-10-12

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