DE69924233T2 - Rauschunterdrückungschaltung und quadatur- abwärtsumsetzer - Google Patents

Rauschunterdrückungschaltung und quadatur- abwärtsumsetzer Download PDF

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Publication number
DE69924233T2
DE69924233T2 DE69924233T DE69924233T DE69924233T2 DE 69924233 T2 DE69924233 T2 DE 69924233T2 DE 69924233 T DE69924233 T DE 69924233T DE 69924233 T DE69924233 T DE 69924233T DE 69924233 T2 DE69924233 T2 DE 69924233T2
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DE
Germany
Prior art keywords
filter
adc
bandpass
decimator
signal
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 - Lifetime
Application number
DE69924233T
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German (de)
English (en)
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DE69924233D1 (de
Inventor
Karl-Axel Lennart MATHE
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Qualcomm Inc
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Qualcomm Inc
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Publication of DE69924233D1 publication Critical patent/DE69924233D1/de
Application granted granted Critical
Publication of DE69924233T2 publication Critical patent/DE69924233T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H03M3/322—Continuously compensating for, or preventing, undesired influence of physical parameters
    • H03M3/324—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by means or methods for compensating or preventing more than one type of error at a time, e.g. by synchronisation or using a ratiometric arrangement
    • H03M3/344—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by means or methods for compensating or preventing more than one type of error at a time, e.g. by synchronisation or using a ratiometric arrangement by filtering other than the noise-shaping inherent to delta-sigma modulators, e.g. anti-aliasing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/02—Delta modulation, i.e. one-bit differential modulation
    • 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
    • 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
    • H03M3/414—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having multiple quantisers arranged in cascaded loops, each of the second and further loops processing the quantisation error of the loop preceding it, i.e. multiple stage noise shaping [MASH] type
    • H03M3/418—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having multiple quantisers arranged in cascaded loops, each of the second and further loops processing the quantisation error of the loop preceding it, i.e. multiple stage noise shaping [MASH] type all these quantisers being single bit quantisers
    • 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
    • H03M3/458—Analogue/digital converters using delta-sigma modulation as an intermediate step
    • H03M3/462—Details relating to the decimation process

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Noise Elimination (AREA)
  • Analogue/Digital Conversion (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
DE69924233T 1998-01-09 1999-01-11 Rauschunterdrückungschaltung und quadatur- abwärtsumsetzer Expired - Lifetime DE69924233T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US5355 1998-01-09
US09/005,355 US6243430B1 (en) 1998-01-09 1998-01-09 Noise cancellation circuit in a quadrature downconverter
PCT/US1999/000580 WO1999035746A1 (en) 1998-01-09 1999-01-11 Noise cancellation circuit and quadrature downconverter

Publications (2)

Publication Number Publication Date
DE69924233D1 DE69924233D1 (de) 2005-04-21
DE69924233T2 true DE69924233T2 (de) 2006-03-30

Family

ID=21715446

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69924233T Expired - Lifetime DE69924233T2 (de) 1998-01-09 1999-01-11 Rauschunterdrückungschaltung und quadatur- abwärtsumsetzer

Country Status (14)

Country Link
US (1) US6243430B1 (enExample)
EP (1) EP1046232B1 (enExample)
JP (1) JP4162851B2 (enExample)
KR (1) KR100545492B1 (enExample)
CN (1) CN1168215C (enExample)
AU (1) AU758706B2 (enExample)
BR (1) BR9906807A (enExample)
CA (1) CA2315758C (enExample)
DE (1) DE69924233T2 (enExample)
ES (1) ES2237906T3 (enExample)
IL (1) IL136712A0 (enExample)
NO (1) NO326664B1 (enExample)
RU (1) RU2233023C2 (enExample)
WO (1) WO1999035746A1 (enExample)

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* Cited by examiner, † Cited by third party
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DE102006029482A1 (de) * 2006-06-27 2008-01-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Empfänger und Verfahren zum Empfangen eines ersten Nutzfrequenzbandes und eines zweiten Nutzfrequenzbandes
DE102006029486A1 (de) * 2006-06-27 2008-01-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Signalaufbereiter und Verfahren zum Verarbeiten eines Empfangssignals

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DE102006029486A1 (de) * 2006-06-27 2008-01-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Signalaufbereiter und Verfahren zum Verarbeiten eines Empfangssignals

Also Published As

Publication number Publication date
WO1999035746A1 (en) 1999-07-15
CN1168215C (zh) 2004-09-22
JP4162851B2 (ja) 2008-10-08
DE69924233D1 (de) 2005-04-21
EP1046232B1 (en) 2005-03-16
NO20003499D0 (no) 2000-07-07
CA2315758C (en) 2008-03-18
BR9906807A (pt) 2001-10-23
NO326664B1 (no) 2009-01-26
ES2237906T3 (es) 2005-08-01
KR20010033989A (ko) 2001-04-25
US6243430B1 (en) 2001-06-05
KR100545492B1 (ko) 2006-01-24
RU2233023C2 (ru) 2004-07-20
AU2315699A (en) 1999-07-26
NO20003499L (no) 2000-09-06
CN1300467A (zh) 2001-06-20
EP1046232A1 (en) 2000-10-25
CA2315758A1 (en) 1999-07-15
IL136712A0 (en) 2001-06-14
JP2002501319A (ja) 2002-01-15
AU758706B2 (en) 2003-03-27

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