DE69127179D1 - Verfahren zur Konversion eines digitalen Signals in ein analoges Signals in einem Digital/Analog-Wandler - Google Patents

Verfahren zur Konversion eines digitalen Signals in ein analoges Signals in einem Digital/Analog-Wandler

Info

Publication number
DE69127179D1
DE69127179D1 DE69127179T DE69127179T DE69127179D1 DE 69127179 D1 DE69127179 D1 DE 69127179D1 DE 69127179 T DE69127179 T DE 69127179T DE 69127179 T DE69127179 T DE 69127179T DE 69127179 D1 DE69127179 D1 DE 69127179D1
Authority
DE
Germany
Prior art keywords
digital
signal
analog
converting
analog converter
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
DE69127179T
Other languages
English (en)
Other versions
DE69127179T2 (de
Inventor
Robert C Ledzius
James S Irwin
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.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of DE69127179D1 publication Critical patent/DE69127179D1/de
Application granted granted Critical
Publication of DE69127179T2 publication Critical patent/DE69127179T2/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
    • H03M3/50—Digital/analogue converters using delta-sigma modulation as an intermediate step
    • H03M3/502—Details of the final digital/analogue conversion following the digital delta-sigma modulation
    • H03M3/504—Details of the final digital/analogue conversion following the digital delta-sigma modulation the final digital/analogue converter being constituted by a finite impulse response [FIR] filter, i.e. FIRDAC
    • 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
    • H03M7/304—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 with distributed feedback, i.e. with feedback paths from the quantiser output to more than one filter stage

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Analogue/Digital Conversion (AREA)
DE69127179T 1990-12-26 1991-12-19 Verfahren zur Konversion eines digitalen Signals in ein analoges Signals in einem Digital/Analog-Wandler Expired - Fee Related DE69127179T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/633,829 US5057840A (en) 1990-12-26 1990-12-26 Σ-Δmodulator for digital-to-analog converter

Publications (2)

Publication Number Publication Date
DE69127179D1 true DE69127179D1 (de) 1997-09-11
DE69127179T2 DE69127179T2 (de) 1998-02-19

Family

ID=24541287

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69127179T Expired - Fee Related DE69127179T2 (de) 1990-12-26 1991-12-19 Verfahren zur Konversion eines digitalen Signals in ein analoges Signals in einem Digital/Analog-Wandler

Country Status (4)

Country Link
US (1) US5057840A (de)
EP (1) EP0492434B1 (de)
JP (1) JP2976661B2 (de)
DE (1) DE69127179T2 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2705331B2 (ja) * 1991-02-27 1998-01-28 三菱電機株式会社 ヒューズ断検出回路
JPH04329714A (ja) * 1991-04-30 1992-11-18 Nec Ic Microcomput Syst Ltd ノイズシェーバ回路
US5329282A (en) * 1992-03-02 1994-07-12 Motorola, Inc. Multi-bit sigma-delta analog-to-digital converter with reduced sensitivity to DAC nonlinearities
US5231395A (en) * 1992-03-30 1993-07-27 Motorola, Inc. Sigma-delta digital-to-analog converter with reduced distortion
US5339079A (en) * 1992-03-30 1994-08-16 Motorola, Inc. Digital-to-analog converter with a flexible data interface
US5235334A (en) * 1992-03-30 1993-08-10 Motorola, Inc. Digital-to-analog converter with a linear interpolator
US5220326A (en) * 1992-03-30 1993-06-15 Motorola, Inc. Digital-to-analog converter with improved performance and method therefor
US5323157A (en) * 1993-01-15 1994-06-21 Motorola, Inc. Sigma-delta digital-to-analog converter with reduced noise
US5357252A (en) * 1993-03-22 1994-10-18 Motorola, Inc. Sigma-delta modulator with improved tone rejection and method therefor
JPH06283968A (ja) * 1993-03-26 1994-10-07 Sony Corp ディジタル信号演算装置
US5381148A (en) * 1993-07-12 1995-01-10 Analog Devices, Inc. Method and apparatus for calibrating a gain control circuit
US5392042A (en) * 1993-08-05 1995-02-21 Martin Marietta Corporation Sigma-delta analog-to-digital converter with filtration having controlled pole-zero locations, and apparatus therefor
US5864341A (en) * 1996-12-09 1999-01-26 International Business Machines Corporation Instruction dispatch unit and method for dynamically classifying and issuing instructions to execution units with non-uniform forwarding
US5881121A (en) * 1997-02-13 1999-03-09 Cypress Semiconductor Corp. One-pin shift register interface
US5835038A (en) * 1997-05-08 1998-11-10 Burr-Brown Corporation DC dither circuitry and method for delta-sigma modulator
US6097251A (en) * 1998-05-29 2000-08-01 Telefonaktiebolaget Lm Ericsson Pre-recorded sigma delta values for power amplifier control
KR20040016127A (ko) * 2002-08-16 2004-02-21 한건희 타임-인터리브 밴드패스 델타-시그마 변조기
KR100716737B1 (ko) * 2005-08-20 2007-05-14 삼성전자주식회사 양자화 레벨에 디더 노이즈를 적용한 델타-시그마 변환기및 이를 이용한 델타-시그마 변환 방법
US7425910B1 (en) * 2006-02-27 2008-09-16 Marvell International Ltd. Transmitter digital-to-analog converter with noise shaping
US8212700B2 (en) * 2009-07-09 2012-07-03 Stellamar Llc Delta-sigma-delta modulator

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3893102A (en) * 1973-11-02 1975-07-01 Bell Telephone Labor Inc Digital-to-analog converter using differently decoded bit groups
US4006475A (en) * 1973-12-04 1977-02-01 Bell Telephone Laboratories, Incorporated Digital-to-analog converter with digitally distributed amplitude supplement
US4528551A (en) * 1979-11-28 1985-07-09 International Telephone And Telegraph Corporation Digital to analog converter employing sigma-delta modulation for use in telephone systems
US4270027A (en) * 1979-11-28 1981-05-26 International Telephone And Telegraph Corporation Telephone subscriber line unit with sigma-delta digital to analog converter
US4593271A (en) * 1985-01-16 1986-06-03 At&T Bell Laboratories Higher order interpolation for digital-to-analog conversion
GB8504711D0 (en) * 1985-02-23 1985-03-27 Plessey Co Plc Linear & programmable high dynamic range a/d converter
JP2543095B2 (ja) * 1987-09-14 1996-10-16 松下電器産業株式会社 オ―バ―サンプリング型ｄ／ａ変換器
US4857928A (en) * 1988-01-28 1989-08-15 Motorola, Inc. Method and arrangement for a sigma delta converter for bandpass signals
US4901077A (en) * 1988-04-18 1990-02-13 Thomson Consumer Electronics, Inc. Sigma-delta modulator for D-to-A converter
JP2753126B2 (ja) * 1990-09-20 1998-05-18 株式会社東芝 ディジタル・シグマデルタ変調器

Also Published As

Publication number Publication date
US5057840A (en) 1991-10-15
EP0492434B1 (de) 1997-08-06
JP2976661B2 (ja) 1999-11-10
DE69127179T2 (de) 1998-02-19
EP0492434A3 (en) 1992-11-25
JPH04293317A (ja) 1992-10-16
EP0492434A2 (de) 1992-07-01

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)
8339 Ceased/non-payment of the annual fee