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GB2553472B - Analog-to-digital converter - Google Patents

Analog-to-digital converter

Info

Publication number
GB2553472B
GB2553472B GB1719305.3A GB201719305A GB2553472B GB 2553472 B GB2553472 B GB 2553472B GB 201719305 A GB201719305 A GB 201719305A GB 2553472 B GB2553472 B GB 2553472B
Authority
GB
United Kingdom
Prior art keywords
analog
digital converter
converter
digital
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
GB1719305.3A
Other versions
GB2553472A (en
GB201719305D0 (en
Inventor
Paul Lesso John
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.)
Cirrus Logic International Semiconductor Ltd
Original Assignee
Cirrus Logic International Semiconductor Ltd
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 International Semiconductor Ltd filed Critical Cirrus Logic International Semiconductor Ltd
Priority to GB1719305.3A priority Critical patent/GB2553472B/en
Priority claimed from GB1609582.0A external-priority patent/GB2541079B/en
Publication of GB201719305D0 publication Critical patent/GB201719305D0/en
Publication of GB2553472A publication Critical patent/GB2553472A/en
Application granted granted Critical
Publication of GB2553472B publication Critical patent/GB2553472B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/004—Reconfigurable analogue/digital or digital/analogue converters
    • H03M1/005—Reconfigurable analogue/digital or digital/analogue converters among different converters types
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L15/00—Speech recognition
    • G10L15/22—Procedures used during a speech recognition process, e.g. man-machine dialogue
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/78—Detection of presence or absence of voice signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/002—Provisions or arrangements for saving power, e.g. by allowing a sleep mode, using lower supply voltage for downstream stages, using multiple clock domains or by selectively turning on stages when needed
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/004—Reconfigurable analogue/digital or digital/analogue converters
    • H03M1/007—Reconfigurable analogue/digital or digital/analogue converters among different resolutions
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/60—Analogue/digital converters with intermediate conversion to frequency of pulses
    • 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
    • H03M3/32—Delta-sigma modulation with special provisions or arrangements for power saving, e.g. by allowing a sleep mode, using lower supply voltage for downstream stages, using multiple clock domains, by selectively turning on stages when needed
    • 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
    • H03M3/392—Arrangements for selecting among plural operation modes, e.g. for multi-standard operation
    • H03M3/394—Arrangements for selecting among plural operation modes, e.g. for multi-standard operation among different orders of the loop filter
    • 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
    • H03M3/392—Arrangements for selecting among plural operation modes, e.g. for multi-standard operation
    • H03M3/398—Arrangements for selecting among plural operation modes, e.g. for multi-standard operation among different converter types
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L15/00—Speech recognition
    • G10L15/22—Procedures used during a speech recognition process, e.g. man-machine dialogue
    • G10L2015/223—Execution procedure of a spoken command
    • 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
    • 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
    • H03M3/454—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 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)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Telephone Function (AREA)
GB1719305.3A 2013-06-26 2013-06-26 Analog-to-digital converter Active GB2553472B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1719305.3A GB2553472B (en) 2013-06-26 2013-06-26 Analog-to-digital converter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1719305.3A GB2553472B (en) 2013-06-26 2013-06-26 Analog-to-digital converter
GB1609582.0A GB2541079B (en) 2013-06-26 2013-06-26 Analog-to-digital converter

Publications (3)

Publication Number Publication Date
GB201719305D0 GB201719305D0 (en) 2018-01-03
GB2553472A GB2553472A (en) 2018-03-07
GB2553472B true GB2553472B (en) 2018-05-02

Family

ID=60805812

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1719305.3A Active GB2553472B (en) 2013-06-26 2013-06-26 Analog-to-digital converter

Country Status (1)

Country Link
GB (1) GB2553472B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3706316A1 (en) * 2019-03-05 2020-09-09 Nxp B.V. Sigma-delta analog to digital converter
CN117665381B (en) * 2024-01-31 2024-05-24 荣耀终端有限公司 Detection circuit, electronic device and method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6894632B1 (en) * 2004-01-14 2005-05-17 Northrop Grumman Corporation Programmable analog-to-digital converter
US20050258893A1 (en) * 2004-05-18 2005-11-24 Garlapati Srinivasa H Switching between lower and higher power modes in an ADC for lower/higher precision operations
US7193553B1 (en) * 2004-12-07 2007-03-20 National Semiconductor Corporation Analog to digital converter with power-saving adjustable resolution
US20090043580A1 (en) * 2003-09-25 2009-02-12 Sensory, Incorporated System and Method for Controlling the Operation of a Device by Voice Commands
US20120112937A1 (en) * 2010-11-10 2012-05-10 Tomoyuki Yamase Analog-to-digital conversion device and analog-to-digital conversion method
GB2501367A (en) * 2012-02-27 2013-10-23 Cambridge Silicon Radio Ltd Low power audio detection

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090043580A1 (en) * 2003-09-25 2009-02-12 Sensory, Incorporated System and Method for Controlling the Operation of a Device by Voice Commands
US6894632B1 (en) * 2004-01-14 2005-05-17 Northrop Grumman Corporation Programmable analog-to-digital converter
US20050258893A1 (en) * 2004-05-18 2005-11-24 Garlapati Srinivasa H Switching between lower and higher power modes in an ADC for lower/higher precision operations
US7193553B1 (en) * 2004-12-07 2007-03-20 National Semiconductor Corporation Analog to digital converter with power-saving adjustable resolution
US20120112937A1 (en) * 2010-11-10 2012-05-10 Tomoyuki Yamase Analog-to-digital conversion device and analog-to-digital conversion method
GB2501367A (en) * 2012-02-27 2013-10-23 Cambridge Silicon Radio Ltd Low power audio detection

Also Published As

Publication number Publication date
GB2553472A (en) 2018-03-07
GB201719305D0 (en) 2018-01-03

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