ATE452468T1 - Delta-sigma-modulatoren mit verbesserter rauschleistungsfähigkeit - Google Patents

Delta-sigma-modulatoren mit verbesserter rauschleistungsfähigkeit

Info

Publication number
ATE452468T1
ATE452468T1 AT03726157T AT03726157T ATE452468T1 AT E452468 T1 ATE452468 T1 AT E452468T1 AT 03726157 T AT03726157 T AT 03726157T AT 03726157 T AT03726157 T AT 03726157T AT E452468 T1 ATE452468 T1 AT E452468T1
Authority
AT
Austria
Prior art keywords
operational amplifier
delta
noise performance
improved noise
sigma modulators
Prior art date
Application number
AT03726157T
Other languages
English (en)
Inventor
John Melanson
Yuqing Yang
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 ATE452468T1 publication Critical patent/ATE452468T1/de

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
    • H03M3/322—Continuously compensating for, or preventing, undesired influence of physical parameters
    • H03M3/368—Continuously compensating for, or preventing, undesired influence of physical parameters of noise other than the quantisation noise already being shaped inherently by delta-sigma 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
    • H03M3/422—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only
    • H03M3/424—Structural details of delta-sigma modulators, e.g. incremental 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
    • 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
    • H03M3/436—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type
    • H03M3/438—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type the modulator having a higher order loop filter in the feedforward path
    • H03M3/452—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type the modulator having a higher order loop filter in the feedforward path with weighted feedforward summation, i.e. with feedforward paths from more than one filter stage to the quantiser input

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
AT03726157T 2002-06-04 2003-04-01 Delta-sigma-modulatoren mit verbesserter rauschleistungsfähigkeit ATE452468T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/162,324 US6670902B1 (en) 2002-06-04 2002-06-04 Delta-sigma modulators with improved noise performance
PCT/US2003/009780 WO2003105348A1 (en) 2002-06-04 2003-04-01 Delta - sigma modulators with improved noise performance

Publications (1)

Publication Number Publication Date
ATE452468T1 true ATE452468T1 (de) 2010-01-15

Family

ID=29709820

Family Applications (1)

Application Number Title Priority Date Filing Date
AT03726157T ATE452468T1 (de) 2002-06-04 2003-04-01 Delta-sigma-modulatoren mit verbesserter rauschleistungsfähigkeit

Country Status (7)

Country Link
US (2) US6670902B1 (de)
EP (2) EP1550221B1 (de)
JP (3) JP3983247B2 (de)
AT (1) ATE452468T1 (de)
AU (1) AU2003228408A1 (de)
DE (1) DE60330581D1 (de)
WO (1) WO2003105348A1 (de)

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US8970415B2 (en) * 2013-03-11 2015-03-03 Microchip Technology Incorporated Multi-level capacitive DAC
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US9628103B2 (en) 2015-03-05 2017-04-18 Qualcomm Incorporated Multi-mode discrete-time delta-sigma modulator power optimization using split-integrator scheme
US9537497B2 (en) * 2015-05-14 2017-01-03 Mediatek Inc. Continuous time delta sigma modulator, analog to digital converter and associated compensation method
US10530372B1 (en) 2016-03-25 2020-01-07 MY Tech, LLC Systems and methods for digital synthesis of output signals using resonators
US10020818B1 (en) 2016-03-25 2018-07-10 MY Tech, LLC Systems and methods for fast delta sigma modulation using parallel path feedback loops
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US10103744B1 (en) * 2017-04-12 2018-10-16 Analog Devices Global Power scaling a continuous-time delta sigma modulator
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EP3407499A1 (de) 2017-05-24 2018-11-28 ams AG Integratorschaltung zur verwendung in einem sigma-delta modulator
US10461771B2 (en) * 2018-03-20 2019-10-29 Texas Instruments Incorporated Sigma-delta analog-to-digital converter with multiple counters
US11231732B1 (en) 2020-07-07 2022-01-25 Cirrus Logic, Inc. Pre-charge management for power-managed voltage references
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Also Published As

Publication number Publication date
US20040108947A1 (en) 2004-06-10
EP1550221A1 (de) 2005-07-06
US6670902B1 (en) 2003-12-30
AU2003228408A1 (en) 2003-12-22
EP1755226A3 (de) 2007-05-30
EP1755226A2 (de) 2007-02-21
JP4528292B2 (ja) 2010-08-18
JP2007014034A (ja) 2007-01-18
EP1550221B1 (de) 2009-12-16
JP3983247B2 (ja) 2007-09-26
US6873276B2 (en) 2005-03-29
JP2005529537A (ja) 2005-09-29
WO2003105348A1 (en) 2003-12-18
JP2007049745A (ja) 2007-02-22
EP1550221A4 (de) 2006-05-03
US20030227401A1 (en) 2003-12-11
DE60330581D1 (de) 2010-01-28

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