CN109690955A - 噪声整形电路与三角积分数模转换器 - Google Patents

噪声整形电路与三角积分数模转换器 Download PDF

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Publication number
CN109690955A
CN109690955A CN201780000513.4A CN201780000513A CN109690955A CN 109690955 A CN109690955 A CN 109690955A CN 201780000513 A CN201780000513 A CN 201780000513A CN 109690955 A CN109690955 A CN 109690955A
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CN
China
Prior art keywords
filter
shaping circuit
output signal
noise shaping
noise
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Pending
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CN201780000513.4A
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English (en)
Inventor
王文祺
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Shenzhen Goodix Technology Co Ltd
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Shenzhen Goodix Technology Co Ltd
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Application filed by Shenzhen Goodix Technology Co Ltd filed Critical Shenzhen Goodix Technology Co Ltd
Publication of CN109690955A publication Critical patent/CN109690955A/zh
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/06—Continuously compensating for, or preventing, undesired influence of physical parameters
    • H03M1/08—Continuously compensating for, or preventing, undesired influence of physical parameters of noise
    • 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
    • H03M3/50—Digital/analogue 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
    • H03M3/322—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
    • H03M3/414—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having multiple quantisers arranged in cascaded loops, each of the second and further loops processing the quantisation error of the loop preceding it, i.e. multiple stage noise shaping [MASH] 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
    • H03M3/412—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution
    • H03M3/414—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having multiple quantisers arranged in cascaded loops, each of the second and further loops processing the quantisation error of the loop preceding it, i.e. multiple stage noise shaping [MASH] type
    • H03M3/416—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having multiple quantisers arranged in cascaded loops, each of the second and further loops processing the quantisation error of the loop preceding it, i.e. multiple stage noise shaping [MASH] type all these quantisers being multiple bit quantisers
    • 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

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Analogue/Digital Conversion (AREA)

Abstract

本申请提供了一种噪声整形电路，包括第一调制单元，用来根据第一数字输入信号产生第一数字输出信号，所述第一调制单元包括第一量化器；第一减法器，耦接于所述第一量化器的输入端及输出端，用来产生第一量化噪声；以及第二调制单元，用来根据第二数字输入信号产生第二数字输出信号，所述第二数字输入信号相关于所述第一量化噪声；其中，所述噪声整形电路根据所述第一数字输出信号及所述第二数字输出信号，产生整体模拟输出信号。

Description

PCT国内申请，说明书已公开。

Claims (12)

  1. PCT国内申请，权利要求书已公开。
CN201780000513.4A 2017-06-15 2017-06-15 噪声整形电路与三角积分数模转换器 Pending CN109690955A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2017/088388 WO2018227456A1 (zh) 2017-06-15 2017-06-15 噪声整形电路与三角积分数模转换器

Publications (1)

Publication Number Publication Date
CN109690955A true CN109690955A (zh) 2019-04-26

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CN201780000513.4A Pending CN109690955A (zh) 2017-06-15 2017-06-15 噪声整形电路与三角积分数模转换器

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Country Link
US (1) US10084474B1 (zh)
EP (1) EP3447922A4 (zh)
KR (1) KR102096294B1 (zh)
CN (1) CN109690955A (zh)
WO (1) WO2018227456A1 (zh)

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CN116593764A (zh) * 2023-03-29 2023-08-15 浙江朗德电子科技有限公司 高精度自标定电流传感器模块及其标定方法

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US10341148B2 (en) * 2017-08-25 2019-07-02 Mediatek Inc. Sigma-delta modulator and associated system improving spectrum efficiency of wired interconnection
US10979030B2 (en) * 2017-08-25 2021-04-13 Mediatek Inc. System improving signal handling
DE102021100771A1 (de) 2021-01-15 2022-07-21 Universität Stuttgart, Körperschaft Des Öffentlichen Rechts Mischsignal-Schaltungsanordnung und Verfahren zur effizienten Pulsformung digitaler Signale
US20240039554A1 (en) * 2022-07-29 2024-02-01 Cisco Technology, Inc. Error cancellation delta-sigma dac with an inverting amplifier-based filter

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CN116593764A (zh) * 2023-03-29 2023-08-15 浙江朗德电子科技有限公司 高精度自标定电流传感器模块及其标定方法

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EP3447922A1 (en) 2019-02-27
KR20190010397A (ko) 2019-01-30
WO2018227456A1 (zh) 2018-12-20
KR102096294B1 (ko) 2020-04-03
US10084474B1 (en) 2018-09-25
EP3447922A4 (en) 2019-02-27

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