DE602004005437D1 - Vorrichtung mit einem Sigma-Delta-Modulator und Verfahren zur Erzeugung eines quantisierten Signals in einem Sigma-Delta Modulator - Google Patents

Vorrichtung mit einem Sigma-Delta-Modulator und Verfahren zur Erzeugung eines quantisierten Signals in einem Sigma-Delta Modulator

Info

Publication number
DE602004005437D1
DE602004005437D1 DE602004005437T DE602004005437T DE602004005437D1 DE 602004005437 D1 DE602004005437 D1 DE 602004005437D1 DE 602004005437 T DE602004005437 T DE 602004005437T DE 602004005437 T DE602004005437 T DE 602004005437T DE 602004005437 D1 DE602004005437 D1 DE 602004005437D1
Authority
DE
Germany
Prior art keywords
sigma
delta modulator
generating
signal
quantized 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.)
Active
Application number
DE602004005437T
Other languages
English (en)
Other versions
DE602004005437T2 (de
Inventor
Johannes Wilhelmus Eikenbroek
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.)
Ericsson Technology Licensing AB
Original Assignee
Ericsson Technology Licensing AB
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 Ericsson Technology Licensing AB filed Critical Ericsson Technology Licensing AB
Publication of DE602004005437D1 publication Critical patent/DE602004005437D1/de
Application granted granted Critical
Publication of DE602004005437T2 publication Critical patent/DE602004005437T2/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/3002—Conversion to or from differential modulation
    • H03M7/3004—Digital delta-sigma modulation
    • H03M7/3006—Compensating for, or preventing of, undesired influence of physical parameters
    • H03M7/3008—Compensating for, or preventing of, undesired influence of physical parameters by averaging out the errors, e.g. using dither
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/3002—Conversion to or from differential modulation
    • H03M7/3004—Digital delta-sigma modulation
    • H03M7/3015—Structural details of digital delta-sigma modulators
    • H03M7/302—Structural details of digital delta-sigma modulators characterised by the number of quantisers and their type and resolution
    • H03M7/3024—Structural details of digital delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only
    • H03M7/3026—Structural details of digital 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
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/3002—Conversion to or from differential modulation
    • H03M7/3004—Digital delta-sigma modulation
    • H03M7/3015—Structural details of digital delta-sigma modulators
    • H03M7/3031—Structural details of digital delta-sigma modulators characterised by the order of the loop filter, e.g. having a first order loop filter in the feedforward path
    • H03M7/3033—Structural details of digital delta-sigma modulators characterised by the order of the loop filter, e.g. having a first order loop filter in the feedforward path the modulator having a higher order loop filter in the feedforward path, e.g. with distributed feedforward inputs

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
DE602004005437T 2004-07-01 2004-07-01 Vorrichtung mit einem Sigma-Delta-Modulator und Verfahren zur Erzeugung eines quantisierten Signals in einem Sigma-Delta Modulator Active DE602004005437T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04388043A EP1612946B1 (de) 2004-07-01 2004-07-01 Vorrichtung mit einem Sigma-Delta-Modulator und Verfahren zur Erzeugung eines quantisierten Signals in einem Sigma-Delta Modulator

Publications (2)

Publication Number Publication Date
DE602004005437D1 true DE602004005437D1 (de) 2007-05-03
DE602004005437T2 DE602004005437T2 (de) 2007-07-19

Family

ID=34931944

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602004005437T Active DE602004005437T2 (de) 2004-07-01 2004-07-01 Vorrichtung mit einem Sigma-Delta-Modulator und Verfahren zur Erzeugung eines quantisierten Signals in einem Sigma-Delta Modulator

Country Status (4)

Country Link
EP (1) EP1612946B1 (de)
CN (1) CN100539435C (de)
AT (1) ATE357774T1 (de)
DE (1) DE602004005437T2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8644441B2 (en) 2007-11-15 2014-02-04 Mediatek Inc. Clock generators and clock generation methods thereof
US8379787B2 (en) * 2007-11-15 2013-02-19 Mediatek Inc. Spread spectrum clock generators
CN102013878B (zh) * 2010-09-21 2014-01-15 上海大学 基于时序逻辑电路和运算放大器的自适应增量调制系统
RU2506692C1 (ru) * 2012-08-31 2014-02-10 Виктор Степанович Дубровин Управляемый генератор
CN110537351B (zh) * 2017-04-28 2022-05-06 松下电器（美国）知识产权公司 测量装置和测量方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE509408C2 (sv) * 1997-05-27 1999-01-25 Ericsson Telefon Ab L M Anordning och förfarande för reducering av periodiskt brus i en sigma-delta modulator
US5986512A (en) * 1997-12-12 1999-11-16 Telefonaktiebolaget L M Ericsson (Publ) Σ-Δ modulator-controlled phase-locked-loop circuit
US6823033B2 (en) * 2002-03-12 2004-11-23 Qualcomm Inc. ΣΔdelta modulator controlled phase locked loop with a noise shaped dither

Also Published As

Publication number Publication date
DE602004005437T2 (de) 2007-07-19
EP1612946A1 (de) 2006-01-04
EP1612946B1 (de) 2007-03-21
CN101032080A (zh) 2007-09-05
ATE357774T1 (de) 2007-04-15
CN100539435C (zh) 2009-09-09

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