WO2023287361A3 - A quantizer device - Google Patents

A quantizer device Download PDF

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Publication number
WO2023287361A3
WO2023287361A3 PCT/SG2022/050497 SG2022050497W WO2023287361A3 WO 2023287361 A3 WO2023287361 A3 WO 2023287361A3 SG 2022050497 W SG2022050497 W SG 2022050497W WO 2023287361 A3 WO2023287361 A3 WO 2023287361A3
Authority
WO
WIPO (PCT)
Prior art keywords
comparators
loop connection
feedback loop
signal
integrator
Prior art date
Application number
PCT/SG2022/050497
Other languages
French (fr)
Other versions
WO2023287361A2 (en
Inventor
Neelakantan NARASIMMAN
Original Assignee
Agency For Science, Technology And Research
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 Agency For Science, Technology And Research filed Critical Agency For Science, Technology And Research
Publication of WO2023287361A2 publication Critical patent/WO2023287361A2/en
Publication of WO2023287361A3 publication Critical patent/WO2023287361A3/en

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
    • H03M3/458—Analogue/digital converters using delta-sigma modulation as an intermediate step
    • 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
    • H03M3/454—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

Abstract

A quantizer device and a method of quantizing a signal may be provided, the quantizer device comprising, a plurality of comparators for coupling to an integrator output of an integrator stage of a signal modulator, the plurality of comparators to perform multi-bit quantization of the integrator output; a feedback loop connection coupled to outputs of the plurality of comparators and coupled to an input of the integrator stage, the feedback loop connection for transmitting quantized outputs of the plurality of comparators as a comparator feedback signal to the input of the integrator stage; a digital-to-analog converter disposed within the feedback loop connection to perform digital-to-analog conversion of the quantized outputs of the plurality of comparators to generate the comparator feedback signal; and a gain stage disposed within the feedback loop connection to provide a gain to the comparator feedback signal.
PCT/SG2022/050497 2021-07-16 2022-07-15 A quantizer device WO2023287361A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SG10202107806P 2021-07-16
SG10202107806P 2021-07-16

Publications (2)

Publication Number Publication Date
WO2023287361A2 WO2023287361A2 (en) 2023-01-19
WO2023287361A3 true WO2023287361A3 (en) 2023-04-13

Family

ID=84922596

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SG2022/050497 WO2023287361A2 (en) 2021-07-16 2022-07-15 A quantizer device

Country Status (1)

Country Link
WO (1) WO2023287361A2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6426714B1 (en) * 2001-06-26 2002-07-30 Nokia Corporation Multi-level quantizer with current mode DEM switch matrices and separate DEM decision logic for a multibit sigma delta modulator
US6473019B1 (en) * 2001-06-21 2002-10-29 Nokia Corporation Low capacitance, low kickback noise input stage of a multi-level quantizer with dithering and multi-threshold generation for a multi-bit sigma-delta modulator
US20070241950A1 (en) * 2005-08-19 2007-10-18 Petilli Eugene M Mismatch-shaping dynamic element matching systems and methods for multi-bit sigma-delta data converters
US20110032132A1 (en) * 2009-08-09 2011-02-10 Tse-Chi Lin Delta-sigma analog-to-digital conversion apparatus and method thereof
US10581453B1 (en) * 2018-12-18 2020-03-03 Robert Bosch Gmbh Precision current-to-digital converter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6473019B1 (en) * 2001-06-21 2002-10-29 Nokia Corporation Low capacitance, low kickback noise input stage of a multi-level quantizer with dithering and multi-threshold generation for a multi-bit sigma-delta modulator
US6426714B1 (en) * 2001-06-26 2002-07-30 Nokia Corporation Multi-level quantizer with current mode DEM switch matrices and separate DEM decision logic for a multibit sigma delta modulator
US20070241950A1 (en) * 2005-08-19 2007-10-18 Petilli Eugene M Mismatch-shaping dynamic element matching systems and methods for multi-bit sigma-delta data converters
US20110032132A1 (en) * 2009-08-09 2011-02-10 Tse-Chi Lin Delta-sigma analog-to-digital conversion apparatus and method thereof
US10581453B1 (en) * 2018-12-18 2020-03-03 Robert Bosch Gmbh Precision current-to-digital converter

Also Published As

Publication number Publication date
WO2023287361A2 (en) 2023-01-19

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