ATE381150T1 - Rauschformungsschaltungen und verfahren mit r ckkopplungslenk berlastkompensation und systeme damit - Google Patents

Rauschformungsschaltungen und verfahren mit r ckkopplungslenk berlastkompensation und systeme damit

Info

Publication number
ATE381150T1
ATE381150T1 AT03799250T AT03799250T ATE381150T1 AT E381150 T1 ATE381150 T1 AT E381150T1 AT 03799250 T AT03799250 T AT 03799250T AT 03799250 T AT03799250 T AT 03799250T AT E381150 T1 ATE381150 T1 AT E381150T1
Authority
AT
Austria
Prior art keywords
feedback
feedback loop
output
noise shaping
signal
Prior art date
Application number
AT03799250T
Other languages
English (en)
Inventor
John Melanson
Original Assignee
Cirrus Logic 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 Cirrus Logic Inc filed Critical Cirrus Logic Inc
Application granted granted Critical
Publication of ATE381150T1 publication Critical patent/ATE381150T1/de

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
    • H03M7/3011—Compensating for, or preventing of, undesired influence of physical parameters of non-linear distortion, e.g. by temporarily adapting the operation upon detection of instability conditions
    • 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

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Amplifiers (AREA)
  • Noise Elimination (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)
AT03799250T 2002-08-13 2003-08-01 Rauschformungsschaltungen und verfahren mit r ckkopplungslenk berlastkompensation und systeme damit ATE381150T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/217,368 US6724332B1 (en) 2002-08-13 2002-08-13 Noise shaping circuits and methods with feedback steering overload compensation and systems using the same

Publications (1)

Publication Number Publication Date
ATE381150T1 true ATE381150T1 (de) 2007-12-15

Family

ID=32068068

Family Applications (1)

Application Number Title Priority Date Filing Date
AT03799250T ATE381150T1 (de) 2002-08-13 2003-08-01 Rauschformungsschaltungen und verfahren mit r ckkopplungslenk berlastkompensation und systeme damit

Country Status (7)

Country Link
US (1) US6724332B1 (de)
EP (2) EP1890384A3 (de)
JP (3) JP4014598B2 (de)
AT (1) ATE381150T1 (de)
AU (1) AU2003257140A1 (de)
DE (1) DE60318072T2 (de)
WO (1) WO2004032333A1 (de)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6933871B2 (en) * 2001-09-17 2005-08-23 Cirrus Logic, Inc. Feedback steering delta-sigma modulators and systems using the same
JP3828031B2 (ja) * 2002-03-25 2006-09-27 株式会社ルネサステクノロジ Ｄａコンバータ
US6822594B1 (en) * 2003-10-09 2004-11-23 Cirrus Logic, Inc. Overload protection and stability for high order 1-bit delta-sigma modulators
GB2408858B (en) * 2003-12-05 2006-11-29 Wolfson Ltd Word length reduction circuit
US7196647B2 (en) * 2004-01-16 2007-03-27 Cirrus Logic, Inc. Signal processing with look-ahead modulator noise quantization minimization
US7009543B2 (en) * 2004-01-16 2006-03-07 Cirrus Logic, Inc. Multiple non-monotonic quantizer regions for noise shaping
US7170434B2 (en) * 2004-01-16 2007-01-30 Cirrus Logic, Inc. Look-ahead delta sigma modulator with quantization using natural and pattern loop filter responses
US7187312B2 (en) * 2004-01-16 2007-03-06 Cirrus Logic, Inc. Look-ahead delta sigma modulator having an infinite impulse response filter with multiple look-ahead outputs
US7084798B2 (en) * 2004-01-16 2006-08-01 Cirrus Logic, Inc. Look-ahead delta sigma modulators with quantizer input approximations
US7148830B2 (en) * 2004-01-26 2006-12-12 Cirrus Logic, Inc. Look-ahead delta sigma modulator with pruning of output candidate vectors using quantization error minimization pruning techniques
US7138934B2 (en) * 2004-01-26 2006-11-21 Cirrus Logic, Inc. Pattern biasing for look-ahead delta sigma modulators
EP1712004A2 (de) * 2004-01-28 2006-10-18 Koninklijke Philips Electronics N.V. Da-umsetzersystem und verfahren zum umsetzen eines mehrbit-digitalsignals in ein analogsignal
US7081843B2 (en) * 2004-07-19 2006-07-25 Cirrus Logic, Inc. Overload protection for look-ahead delta sigma modulators
US6972705B1 (en) * 2004-12-14 2005-12-06 Cirrus Logic, Inc. Signal processing system having an ADC delta-sigma modulator with single-ended input and feedback signal inputs
US7053807B1 (en) * 2005-03-03 2006-05-30 Analog Devices, Inc. Apparatus and method for controlling the state variable of an integrator stage in a modulator
US7358881B2 (en) * 2005-07-22 2008-04-15 Cirrus Logic, Inc. Quantizer overload prevention for feed-back type delta-sigma modulators
US7327295B1 (en) 2005-10-24 2008-02-05 Cirrus Logic, Inc. Constant edge-rate ternary output consecutive-edge modulator (CEM) method and apparatus
US7209067B1 (en) 2005-12-08 2007-04-24 Cirrus Logic, Inc. Extended dynamic range consecutive edge modulation (CEM) method and apparatus
US7167118B1 (en) 2005-12-08 2007-01-23 Cirrus Logic, Inc. Centered-pulse consecutive edge modulation (CEM) method and apparatus
JP4872439B2 (ja) * 2006-04-21 2012-02-08 株式会社Ｉｈｉ データ補間方法及びデータ補間装置
US7450047B1 (en) * 2007-09-06 2008-11-11 National Semiconductor Corporation Sigma-delta modulator with DAC resolution less than ADC resolution and increased dynamic range
JP5235707B2 (ja) * 2009-02-03 2013-07-10 キヤノン株式会社 制御装置
US8970412B2 (en) * 2011-10-25 2015-03-03 Invensense, Inc. Signal quantization method and apparatus and sensor based thereon
US10375475B2 (en) 2013-04-09 2019-08-06 Cirrus Logic, Inc. Systems and methods for compressing a digital signal in a digital microphone system
US8842031B1 (en) 2013-07-01 2014-09-23 Cirrus Logic, Inc. Delta-sigma modulator with limiter
US9626981B2 (en) 2014-06-25 2017-04-18 Cirrus Logic, Inc. Systems and methods for compressing a digital signal
JP6953448B2 (ja) * 2017-01-17 2021-10-27 ソニーセミコンダクタソリューションズ株式会社 アナログ−デジタル変換器、固体撮像素子、及び、電子機器
US11438697B2 (en) 2019-06-07 2022-09-06 Cirrus Logic, Inc. Low-latency audio output with variable group delay
US10701486B1 (en) 2019-06-07 2020-06-30 Cirrus Logic, Inc. Low-latency audio output with variable group delay
US12015426B2 (en) * 2022-08-04 2024-06-18 Nxp B.V. System and method of reducing delta-sigma modulator error using force-and-correction

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5055843A (en) * 1990-01-31 1991-10-08 Analog Devices, Inc. Sigma delta modulator with distributed prefiltering and feedback
US5124703A (en) * 1990-04-05 1992-06-23 Matsushita Electric Industrial Co., Ltd. Digital signal requantizing circuit using multistage noise shaping
NL9001441A (nl) * 1990-06-22 1992-01-16 Philips Nv Sigma-delta modulator.
NL9100379A (nl) * 1991-03-01 1992-10-01 Philips Nv Sigma-deltamodulator.
FI88765C (fi) * 1991-04-09 1993-06-28 Nokia Mobile Phones Ltd Foerfarande och arrangemang foer stabilering av en hoegre grads sigma-delta-modulator
US5414424A (en) * 1993-08-26 1995-05-09 Advanced Micro Devices, Inc. Fourth-order cascaded sigma-delta modulator
GB2281828B (en) * 1993-09-14 1997-08-06 Marconi Gec Ltd Analogue-to-digital converters and digital modulators
US5742246A (en) * 1996-03-22 1998-04-21 National Science Council Stabilizing mechanism for sigma-delta modulator
US6150969A (en) * 1996-06-12 2000-11-21 Audiologic, Incorporated Correction of nonlinear output distortion in a Delta Sigma DAC
US6064326A (en) * 1998-03-30 2000-05-16 Silicon Laboratories, Inc. Analog-to-digital conversion overload detection and suppression
US6331833B1 (en) * 1999-05-07 2001-12-18 Cadence Design Systems, Inc. Highly linear sigma-delta modulator having graceful degradation of signal-to-noise ratio in overload condition
JP2002076901A (ja) * 2000-08-30 2002-03-15 Matsushita Electric Ind Co Ltd Δ変調とδς変調を混合した方式の変調器，オーバーサンプリング型ｄ／ａ変換器およびａ／ｄ変換器

Also Published As

Publication number Publication date
US6724332B1 (en) 2004-04-20
EP1890384A2 (de) 2008-02-20
EP1890384A3 (de) 2008-05-07
JP2007267434A (ja) 2007-10-11
WO2004032333A8 (en) 2004-10-14
JP2005536963A (ja) 2005-12-02
DE60318072T2 (de) 2008-11-13
EP1540827A1 (de) 2005-06-15
JP4014598B2 (ja) 2007-11-28
AU2003257140A1 (en) 2004-04-23
EP1540827A4 (de) 2005-08-24
EP1540827B1 (de) 2007-12-12
WO2004032333A1 (en) 2004-04-15
JP4443591B2 (ja) 2010-03-31
DE60318072D1 (de) 2008-01-24
JP2007267433A (ja) 2007-10-11

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