GB2493913B - 1 bit delta-sigma modulation scheme with distributive error feedback - Google Patents

1 bit delta-sigma modulation scheme with distributive error feedback Download PDF

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Publication number
GB2493913B
GB2493913B GB1114269.2A GB201114269A GB2493913B GB 2493913 B GB2493913 B GB 2493913B GB 201114269 A GB201114269 A GB 201114269A GB 2493913 B GB2493913 B GB 2493913B
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GB
United Kingdom
Prior art keywords
distributive
modulation scheme
error feedback
sigma modulation
bit delta
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
GB1114269.2A
Other versions
GB201114269D0 (en
GB2493913A (en
Inventor
Kwan Kin-Wah
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.)
Kin Wah Kwan
Smart Design
Original Assignee
Kin Wah Kwan
Smart Design
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 Kin Wah Kwan, Smart Design filed Critical Kin Wah Kwan
Priority to GB1114269.2A priority Critical patent/GB2493913B/en
Publication of GB201114269D0 publication Critical patent/GB201114269D0/en
Priority to GB1205532.3A priority patent/GB2493798B/en
Publication of GB2493913A publication Critical patent/GB2493913A/en
Application granted granted Critical
Publication of GB2493913B publication Critical patent/GB2493913B/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
    • 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
    • H03M7/3084—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction using adaptive string matching, e.g. the Lempel-Ziv method
    • H03M7/3088—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction using adaptive string matching, e.g. the Lempel-Ziv method employing the use of a dictionary, e.g. LZ78
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/02—Delta modulation, i.e. one-bit differential modulation
    • 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
    • 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
    • H03M3/44—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 provisions for rendering the modulator inherently stable
    • H03M3/446—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 provisions for rendering the modulator inherently stable by a particular choice of poles or zeroes in the z-plane, e.g. by positioning zeroes outside the unit circle, i.e. causing the modulator to operate in a chaotic regime
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
    • H03L7/197—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division
    • H03L7/1974—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division for fractional frequency division
    • H03L7/1976—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division for fractional frequency division using a phase accumulator for controlling the counter or frequency divider
    • 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
    • H03M3/43—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 single 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
    • H03M3/454—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)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
GB1114269.2A 2011-08-19 2011-08-19 1 bit delta-sigma modulation scheme with distributive error feedback Active GB2493913B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1114269.2A GB2493913B (en) 2011-08-19 2011-08-19 1 bit delta-sigma modulation scheme with distributive error feedback
GB1205532.3A GB2493798B (en) 2011-08-19 2012-03-29 Fractional PLL frequency synthesizer employing 1 bit delta-sigma modulation scheme with distributed error feedback

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1114269.2A GB2493913B (en) 2011-08-19 2011-08-19 1 bit delta-sigma modulation scheme with distributive error feedback

Publications (3)

Publication Number Publication Date
GB201114269D0 GB201114269D0 (en) 2011-10-05
GB2493913A GB2493913A (en) 2013-02-27
GB2493913B true GB2493913B (en) 2020-04-08

Family

ID=44800524

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1114269.2A Active GB2493913B (en) 2011-08-19 2011-08-19 1 bit delta-sigma modulation scheme with distributive error feedback

Country Status (1)

Country Link
GB (1) GB2493913B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5345233A (en) * 1992-03-30 1994-09-06 Kabushiki Kaisha Toshiba Digital Σ-Δ modulator
US5548286A (en) * 1991-02-22 1996-08-20 B&W Loudspeakers Ltd. Analogue and digital convertors using pulse edge modulators with non-linearity error correction
GB2440622A (en) * 2006-08-05 2008-02-06 Lime Microsystems Ltd Transceiver
US7825842B2 (en) * 2006-06-02 2010-11-02 Ubidyne, Inc. Digital sigma-delta modulators
US7928876B2 (en) * 2004-04-09 2011-04-19 Audioasics A/S Sigma delta modulator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5548286A (en) * 1991-02-22 1996-08-20 B&W Loudspeakers Ltd. Analogue and digital convertors using pulse edge modulators with non-linearity error correction
US5345233A (en) * 1992-03-30 1994-09-06 Kabushiki Kaisha Toshiba Digital Σ-Δ modulator
US7928876B2 (en) * 2004-04-09 2011-04-19 Audioasics A/S Sigma delta modulator
US7825842B2 (en) * 2006-06-02 2010-11-02 Ubidyne, Inc. Digital sigma-delta modulators
GB2440622A (en) * 2006-08-05 2008-02-06 Lime Microsystems Ltd Transceiver

Also Published As

Publication number Publication date
GB201114269D0 (en) 2011-10-05
GB2493913A (en) 2013-02-27

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