FI974405A0 - Delta-sigma modulaattori - Google Patents

Delta-sigma modulaattori

Info

Publication number
FI974405A0
FI974405A0 FI974405A FI974405A FI974405A0 FI 974405 A0 FI974405 A0 FI 974405A0 FI 974405 A FI974405 A FI 974405A FI 974405 A FI974405 A FI 974405A FI 974405 A0 FI974405 A0 FI 974405A0
Authority
FI
Finland
Prior art keywords
delta
sigma modulator
modulator
sigma
Prior art date
Application number
FI974405A
Other languages
English (en)
Swedish (sv)
Other versions
FI974405A (fi
Inventor
Ichiro Fujimori
Original Assignee
Asahi Chemical Micro Syst
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 Asahi Chemical Micro Syst filed Critical Asahi Chemical Micro Syst
Publication of FI974405A0 publication Critical patent/FI974405A0/fi
Publication of FI974405A publication Critical patent/FI974405A/fi

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
    • H03M3/412—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
FI974405A 1995-06-07 1997-12-03 Delta-sigma modulaattori FI974405A (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/486,690 US5654711A (en) 1995-06-07 1995-06-07 Analog-to-digital converter with local feedback
PCT/JP1996/001535 WO1996041422A1 (fr) 1995-06-07 1996-06-06 Modulateur delta-sigma

Publications (2)

Publication Number Publication Date
FI974405A0 true FI974405A0 (fi) 1997-12-03
FI974405A FI974405A (fi) 1998-01-28

Family

ID=23932887

Family Applications (1)

Application Number Title Priority Date Filing Date
FI974405A FI974405A (fi) 1995-06-07 1997-12-03 Delta-sigma modulaattori

Country Status (6)

Country Link
US (1) US5654711A (fi)
JP (1) JP3240145B2 (fi)
DE (1) DE19681429T1 (fi)
FI (1) FI974405A (fi)
GB (1) GB2317064B (fi)
WO (1) WO1996041422A1 (fi)

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100189525B1 (ko) * 1995-08-08 1999-06-01 윤종용 시그마 델타 변조방식의 디지탈/아나로그 변환장치
US5757301A (en) * 1997-05-01 1998-05-26 National Science Council Instability recovery method for sigma-delta modulators
EP0948843A2 (en) * 1997-08-29 1999-10-13 Koninklijke Philips Electronics N.V. Sigma-delta modulator with improved gain accuracy
US6061008A (en) * 1997-12-19 2000-05-09 Rockwell Science Center, Inc. Sigma-delta-sigma modulator for high performance analog-to-digital and digital-to-analog conversion
JPH11308110A (ja) * 1998-04-20 1999-11-05 Asahi Kasei Micro Syst Co Ltd デルタシグマ型アナログデジタル変換器
US6057793A (en) * 1998-06-12 2000-05-02 Oak Technology, Inc. Digital decimation filter and method for achieving fractional data rate reduction with minimal hardware or software overhead
US6111529A (en) * 1998-09-30 2000-08-29 Cirrus Logic, Inc. Accurate gain calibration of analog to digital converters
US6816100B1 (en) 1999-03-12 2004-11-09 The Regents Of The University Of California Analog-to-digital converters with common-mode rejection dynamic element matching, including as used in delta-sigma modulators
US6236343B1 (en) * 1999-05-13 2001-05-22 Quantum Corporation Loop latency compensated PLL filter
US6232901B1 (en) * 1999-08-26 2001-05-15 Rockwell Collins, Inc. High performance sigma-delta-sigma low-pass/band-pass modulator based analog-to-digital and digital-to-analog converter
FI107664B (fi) 1999-09-03 2001-09-14 Nokia Mobile Phones Ltd Delta-sigma-modulaattori, jossa on kaksivaiheinen kvantisointi, sekä menetelmä kaksivaiheisen kvantisoinnin käyttämiseksi delta-sigma-modulaatiossa
US6326912B1 (en) 1999-09-24 2001-12-04 Akm Semiconductor, Inc. Analog-to-digital conversion using a multi-bit analog delta-sigma modulator combined with a one-bit digital delta-sigma modulator
US6369729B1 (en) * 1999-10-08 2002-04-09 Cirrus Logic, Inc. Common mode shift in downstream integrators of high order delta sigma modulators
CA2294404C (en) * 2000-01-07 2004-11-02 Tadeuse A. Kwasniewski Delta-sigma modulator for fractional-n frequency synthesis
KR100346839B1 (ko) * 2000-10-10 2002-08-03 삼성전자 주식회사 시그마-델타 변조기를 이용한 분수-ｎ 주파수 합성 장치및 그 방법
US6750795B2 (en) 2001-01-12 2004-06-15 Broadcom Corporation Gain scaling for higher signal-to-noise ratios in multistage, multi-bit delta sigma modulators
US6522277B2 (en) 2001-02-05 2003-02-18 Asahi Kasei Microsystems, Inc. Circuit, system and method for performing dynamic element matching using bi-directional rotation within a data converter
US20030039319A1 (en) * 2001-08-22 2003-02-27 Willem Engelse Monitoring upstream frequency band
US20030053558A1 (en) * 2001-08-22 2003-03-20 David Unger Digital down converter
US6937176B2 (en) * 2003-09-30 2005-08-30 Koninklijke Philips Electronics, N.V. Ultrasonic signal acquisition in the digital beamformer
US6963297B2 (en) * 2003-11-12 2005-11-08 Northrop Grumman Corporation Delta-sigma digital-to-analog converter assembly
GB2408858B (en) * 2003-12-05 2006-11-29 Wolfson Ltd Word length reduction circuit
US6940438B2 (en) * 2004-01-28 2005-09-06 Texas Instruments Incorporated Method and circuit for reducing quantizer input/output swing in a sigma-delta modulator
US7119728B2 (en) * 2004-02-27 2006-10-10 Sanyo Electric Co., Ltd. Analog/digital converting device
US7398065B1 (en) 2004-08-31 2008-07-08 Rockwell Collins, Inc. Programmable sampling band pass filter
US7142144B1 (en) * 2005-05-19 2006-11-28 Ami Semiconductor, Inc. Low power sigma delta modulator
US7358881B2 (en) * 2005-07-22 2008-04-15 Cirrus Logic, Inc. Quantizer overload prevention for feed-back type delta-sigma modulators
US20090135885A1 (en) * 2005-11-07 2009-05-28 Keystone Semiconductor, Inc. Non-linear feedback control loops as spread spectrum clock generator
JP4589275B2 (ja) * 2006-07-27 2010-12-01 パナソニック株式会社 デルタシグマ変調型ｄａ変換装置
JP4890503B2 (ja) * 2008-06-17 2012-03-07 旭化成エレクトロニクス株式会社 デルタシグマ変調器
US7675443B1 (en) * 2008-06-25 2010-03-09 Atheros Communications, Inc. Saturation detector for an ADC
US7782239B2 (en) 2008-10-28 2010-08-24 Robert Bosch Gmbh Multi-stage resettable sigma-delta converters
CN102025378B (zh) * 2009-09-14 2014-06-18 晨星软件研发(深圳)有限公司 共用运算放大器的多通道∑-△转换电路及其辅助方法
US8395418B2 (en) 2010-11-04 2013-03-12 Robert Bosch Gmbh Voltage sensing circuit with reduced susceptibility to gain drift
US8884796B2 (en) * 2011-10-20 2014-11-11 Kathrein-Werke Kg Delta-sigma modulator with feedback signal modification
JP7139588B2 (ja) * 2017-09-22 2022-09-21 カシオ計算機株式会社 変換装置、電子楽器、情報処理装置、変換方法及びプログラム
CN113783572B (zh) * 2020-06-09 2024-05-24 上海新微技术研发中心有限公司 Σ-δ模数转换器中反向增益系数的设置方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61121620A (ja) * 1984-11-19 1986-06-09 Matsushita Electric Ind Co Ltd Ｄｐｃｍ復号器の誤り保護回路
US4851841A (en) * 1987-10-02 1989-07-25 Crystal Semiconductor Corporation Gain scaling of oversampled analog-to-digital converters
JPH01204528A (ja) * 1988-02-10 1989-08-17 Fujitsu Ltd Ａ／ｄ変換器
FI80548C (fi) * 1988-11-09 1990-06-11 Nokia Oy Ab Foerfarande foer kaskadkoppling av tvao eller flera sigma-deltamodulatorer samt ett sigma-delta-modulatorsystem.
JPH02184119A (ja) * 1989-01-11 1990-07-18 Toshiba Corp オーバーサンプリング形デジタル―アナログ変換回路
US5148166A (en) * 1990-04-06 1992-09-15 General Electric Company Third order sigma delta oversampled analog-to-digital converter network with low component sensitivity
KR100219021B1 (ko) * 1990-04-06 1999-09-01 제이 엘. 차스킨, 버나드 스나이더, 아더엠. 킹 성분 감도가 낮은 오버샘플된 3차 시그마 델타 아날로그-디지탈 변환기 네트워크
US5148167A (en) * 1990-04-06 1992-09-15 General Electric Company Sigma-delta oversampled analog-to-digital converter network with chopper stabilization
US5065157A (en) * 1990-04-06 1991-11-12 General Electric Company High order sigma delta oversampled analog-to-digital converter integrated circuit network with minimal power dissipation and chip area requirements
US5103229A (en) * 1990-04-23 1992-04-07 General Electric Company Plural-order sigma-delta analog-to-digital converters using both single-bit and multiple-bit quantization
JPH0435528A (ja) * 1990-05-31 1992-02-06 Sanyo Electric Co Ltd 差分符号化回路

Also Published As

Publication number Publication date
DE19681429T1 (de) 1998-05-07
US5654711A (en) 1997-08-05
GB9725838D0 (en) 1998-02-04
GB2317064A (en) 1998-03-11
WO1996041422A1 (fr) 1996-12-19
FI974405A (fi) 1998-01-28
GB2317064B (en) 1998-11-18
JP3240145B2 (ja) 2001-12-17

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