TW326603B - Method and apparatus for over-sampled, noise-shaping, mixed-signal processing - Google Patents

Method and apparatus for over-sampled, noise-shaping, mixed-signal processing

Info

Publication number
TW326603B
TW326603B TW086107527A TW86107527A TW326603B TW 326603 B TW326603 B TW 326603B TW 086107527 A TW086107527 A TW 086107527A TW 86107527 A TW86107527 A TW 86107527A TW 326603 B TW326603 B TW 326603B
Authority
TW
Taiwan
Prior art keywords
stage
sampled
sampling
noise
over
Prior art date
Application number
TW086107527A
Other languages
English (en)
Inventor
Adya S Tripathi
Cary L Dolano
Original Assignee
Tripath Technology 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 Tripath Technology Inc filed Critical Tripath Technology Inc
Application granted granted Critical
Publication of TW326603B publication Critical patent/TW326603B/zh

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03FAMPLIFIERS
    • H03F1/00Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/38Positive-feedback circuit arrangements without negative feedback
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03FAMPLIFIERS
    • H03F3/00Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/21Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • H03F3/217Class D power amplifiers; Switching amplifiers
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00Conversion of analogue values to or from differential modulation
    • H03M3/30Delta-sigma modulation
    • H03M3/322Continuously compensating for, or preventing, undesired influence of physical parameters
    • H03M3/324Continuously compensating for, or preventing, undesired influence of physical parameters characterised by means or methods for compensating or preventing more than one type of error at a time, e.g. by synchronisation or using a ratiometric arrangement
    • H03M3/344Continuously compensating for, or preventing, undesired influence of physical parameters characterised by means or methods for compensating or preventing more than one type of error at a time, e.g. by synchronisation or using a ratiometric arrangement by filtering other than the noise-shaping inherent to delta-sigma modulators, e.g. anti-aliasing
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03FAMPLIFIERS
    • H03F2200/00Indexing scheme relating to amplifiers
    • H03F2200/331Sigma delta modulation being used in an amplifying circuit
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00Conversion of analogue values to or from differential modulation
    • H03M3/30Delta-sigma modulation
    • H03M3/322Continuously compensating for, or preventing, undesired influence of physical parameters
    • H03M3/358Continuously compensating for, or preventing, undesired influence of physical parameters of non-linear distortion, e.g. instability
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00Conversion of analogue values to or from differential modulation
    • H03M3/30Delta-sigma modulation
    • H03M3/39Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
    • H03M3/412Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution
    • H03M3/422Structural 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
    • H03M3/43Structural 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
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00Conversion of analogue values to or from differential modulation
    • H03M3/30Delta-sigma modulation
    • H03M3/39Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
    • H03M3/436Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type
    • H03M3/438Structural 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Amplifiers (AREA)
  • Analogue/Digital Conversion (AREA)
TW086107527A 1996-06-20 1997-06-02 Method and apparatus for over-sampled, noise-shaping, mixed-signal processing TW326603B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/667,925 US5777512A (en) 1996-06-20 1996-06-20 Method and apparatus for oversampled, noise-shaping, mixed-signal processing

Publications (1)

Publication Number Publication Date
TW326603B true TW326603B (en) 1998-02-11

Family

ID=24680235

Family Applications (1)

Application Number Title Priority Date Filing Date
TW086107527A TW326603B (en) 1996-06-20 1997-06-02 Method and apparatus for over-sampled, noise-shaping, mixed-signal processing

Country Status (6)

Country Link
US (1) US5777512A (zh)
EP (1) EP0906659A4 (zh)
JP (1) JP2001503929A (zh)
KR (1) KR100451806B1 (zh)
TW (1) TW326603B (zh)
WO (1) WO1997049175A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106026951A (zh) * 2015-03-31 2016-10-12 美国亚德诺半导体公司 用于电子电路中抗混叠的设备和方法

Families Citing this family (84)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100394846B1 (ko) * 1996-10-31 2003-08-19 방앤드오루프센아/에스 강화된 캐스케이드 제어 방법을 갖는 펄스 변조 전력증폭기
US5974089A (en) * 1997-07-22 1999-10-26 Tripath Technology, Inc. Method and apparatus for performance improvement by qualifying pulses in an oversampled noise-shaping signal processor
US6233343B1 (en) * 1997-09-26 2001-05-15 Hewlett-Packard Company Power adapter having a speaker for an electronic device
US5986598A (en) * 1997-12-19 1999-11-16 Motorola, Inc. Sigma delta data converter with feed-forward path to stabilize integrator signal swing
US5909153A (en) * 1998-02-05 1999-06-01 Tripath Technology, Inc. Method and apparatus for compensating for delays in modulator loops
EP0948139B1 (en) * 1998-04-03 2002-11-27 STMicroelectronics S.r.l. Stabilization of single loop sigma delta modulators of a high order
US6768375B2 (en) * 1998-11-12 2004-07-27 Jam Technologies, Llc Multi-reference high accuracy switching amplifier expansion
WO2000028658A1 (en) * 1998-11-12 2000-05-18 Larry Kirn Multi-reference, high-accuracy switching amplifier
US6414614B1 (en) * 1999-02-23 2002-07-02 Cirrus Logic, Inc. Power output stage compensation for digital output amplifiers
US6246283B1 (en) * 1999-03-09 2001-06-12 Tripath Technology, Inc. Power efficient line driver
US6229390B1 (en) * 1999-03-09 2001-05-08 Tripath Technology, Inc. Methods and apparatus for noise shaping a mixed signal power output
US6344811B1 (en) 1999-03-16 2002-02-05 Audio Logic, Inc. Power supply compensation for noise shaped, digital amplifiers
US6791404B1 (en) 1999-07-01 2004-09-14 Broadcom Corporation Method and apparatus for efficient mixed signal processing in a digital amplifier
US6549069B2 (en) 2000-03-03 2003-04-15 Tripath Technology, Inc. Self-timed switching for a digital power amplifier
US6577194B2 (en) 2000-03-03 2003-06-10 Tripath Technology, Inc. Resonant gate drive technique for a digital power amplifier
US6414560B2 (en) 2000-03-03 2002-07-02 Tripath Technology, Inc. Loop delay compensation for a digital power amplifier
US6628166B2 (en) * 2000-03-03 2003-09-30 Tripath Technology, Inc. RF communication system using an RF digital amplifier
WO2001067596A1 (en) * 2000-03-03 2001-09-13 Tripath Technology, Inc. Rf communication system using an rf digital amplifier
US6348836B2 (en) 2000-03-03 2002-02-19 Tripath Technology, Inc. Dual independently clocked analog-to-digital conversion for a digital power amplifier
KR20010095927A (ko) * 2000-04-12 2001-11-07 오종훈 펄스변조 신호의 효과적인 스위칭 파워 증폭을 위한 에러보정 방법
US6970503B1 (en) 2000-04-21 2005-11-29 National Semiconductor Corporation Apparatus and method for converting analog signal to pulse-width-modulated signal
DE60138382D1 (de) * 2000-05-25 2009-05-28 Nxp Bv Pwm-begrenzungsanordnung
US6717392B2 (en) * 2000-05-30 2004-04-06 Rádiodetection Limited Signal generator
US6373334B1 (en) * 2000-06-12 2002-04-16 Cirrus Logic, Inc. Real time correction of a digital PWM amplifier
US6420930B1 (en) 2000-07-12 2002-07-16 Monolithic Power Systems, Inc. Class D audio amplifier
US6476673B2 (en) 2000-07-12 2002-11-05 Monolithic Power Systems, Inc. Class D audio amplifier
US6373340B1 (en) 2000-08-14 2002-04-16 K. S. Waves, Ltd. High-efficiency audio power amplifier
IL138844A0 (en) 2000-08-14 2001-10-31 K S Waves Ltd High efficiency power supply
US6798288B1 (en) * 2000-09-26 2004-09-28 Tripath Technology, Inc. Receive band rejection for a digital RF amplifier
CA2362104A1 (en) * 2000-10-30 2002-04-30 Simon Fraser University High efficiency power amplifier systems and methods
US6466087B2 (en) * 2000-12-28 2002-10-15 Nokia Mobile Phones, Ltd. Method and apparatus providing digital error correction for a class D power stage
JP2002230905A (ja) * 2001-01-29 2002-08-16 Niigata Seimitsu Kk 音声再生装置および方法
EP1239575A3 (en) * 2001-03-08 2003-11-05 Shindengen Electric Manufacturing Company, Limited DC stabilised power supply
SE520530C2 (sv) 2001-04-26 2003-07-22 Ericsson Telefon Ab L M Linjäriserad omkopplarbaserad effektförstärkare
GB0110340D0 (en) * 2001-04-27 2001-06-20 Watts Robert D A signal processing circuit
US6836231B2 (en) * 2001-05-30 2004-12-28 Radiodetection Limited Signal generator
US6504427B2 (en) * 2001-05-31 2003-01-07 Motorola, Inc. Switching amplifier having digital correction and method therefor
JP3776752B2 (ja) 2001-06-07 2006-05-17 新電元工業株式会社 Dc−dcコンバータ
US6737713B2 (en) * 2001-07-03 2004-05-18 Tripath Technology, Inc. Substrate connection in an integrated power circuit
WO2003005570A1 (fr) * 2001-07-03 2003-01-16 Niigata Seimitsu Co., Ltd. Dispositif et procede de reproduction audio, amplificateur audio et circuit integre d'amplificateur audio
US7200187B2 (en) * 2001-07-26 2007-04-03 O'brien Thomas J Modulator for digital amplifier
US6621339B2 (en) 2001-11-30 2003-09-16 Tripath Technology, Inc. Methods and apparatus for facilitating negative feedback, providing loop stability, and improving amplifier efficiency
WO2003047309A1 (en) * 2001-11-30 2003-06-05 Sonion A/S A high efficiency driver for miniature loudspeakers
AU2002348901A1 (en) * 2001-12-18 2003-06-30 Koninklijke Philips Electronics N.V. Sigma delta a/d converter with firdac converter
EP1429455A1 (en) 2002-12-11 2004-06-16 Dialog Semiconductor GmbH Linearization of a PDM class-D amplifier
JP4078543B2 (ja) * 2002-12-20 2008-04-23 ソニー株式会社 オーディオアンプ
JP2004228989A (ja) * 2003-01-23 2004-08-12 Renesas Technology Corp 半導体装置
US7170360B2 (en) * 2003-01-31 2007-01-30 Infineon Technologies Ag Device and method for digital pulse width modulation
SE0300780D0 (sv) * 2003-03-24 2003-03-24 Bang & Olufsen Icepower As Digital pulse width controlled oscillation modulator
US20060164272A1 (en) * 2003-06-27 2006-07-27 Philips Kathleen Jeanne P Analog-to-digital-converter comprising a sigma-delta-modulator and receiver with such analog-to-digital-converter
US7058464B2 (en) * 2003-07-17 2006-06-06 Ess Technology, Inc. Device and method for signal processing
US20050035891A1 (en) * 2003-08-14 2005-02-17 Tripath Technology, Inc. Digital-to-analog converter with level control
US7235962B2 (en) * 2003-11-17 2007-06-26 Babak Mazda Inductor-based current sensing
US6998910B2 (en) * 2004-01-22 2006-02-14 Texas Instruments Incorporated Amplifier using delta-sigma modulation
US7023267B2 (en) * 2004-02-17 2006-04-04 Prophesi Technologies, Inc. Switching power amplifier using a frequency translating delta sigma modulator
GB2419757B (en) * 2004-11-01 2008-11-26 Zetex Plc A digital amplifier
US7142047B2 (en) * 2004-11-29 2006-11-28 Tripath Technology, Inc. Offset cancellation in a switching amplifier
US6970123B1 (en) 2004-12-02 2005-11-29 Tripath Technology, Inc. Inductorless architecture for a switching amplifier
US8000821B2 (en) * 2005-01-31 2011-08-16 Freescale Semiconductor, Inc. Audio communication unit and integrated circuit
JP4802765B2 (ja) * 2005-03-18 2011-10-26 ヤマハ株式会社 D級増幅器
US7474149B2 (en) * 2005-03-25 2009-01-06 Pulsewave Rf, Inc. Radio frequency power amplifier and method using a controlled supply
US7352237B2 (en) * 2005-03-25 2008-04-01 Pulsewave Rf, Inc. Radio frequency power amplifier and corresponding method
EP1883992A2 (en) * 2005-04-28 2008-02-06 Pulsewave RF, Inc. Radio frequency power amplifier and method using a plurality of feedback systems
US7084799B1 (en) 2005-05-09 2006-08-01 Sls International, Inc. Sigma-delta modulated amplifier
US7283001B2 (en) 2005-05-12 2007-10-16 Cirrus Logic, Inc. Noise-shaping amplifier with waveform lock
US7746935B2 (en) * 2005-05-13 2010-06-29 Xienetics, Inc. Digital amplifier system for driving a capacitive load
US7486937B2 (en) * 2005-05-17 2009-02-03 Cirrus Logic, Inc. Efficient RF amplifier topologies
US7183957B1 (en) * 2005-12-30 2007-02-27 Cirrus Logic, Inc. Signal processing system with analog-to-digital converter using delta-sigma modulation having an internal stabilizer loop
US7466254B2 (en) * 2006-02-03 2008-12-16 L&L Engineering Llc Systems and methods for digital control utilizing oversampling
WO2008147769A2 (en) * 2007-05-23 2008-12-04 Hypres Inc. Wideband digital spectrometer
WO2009101486A1 (en) * 2008-02-13 2009-08-20 Freescale Semiconductor, Inc. Sigma-delta modulator apparatus and method of generating a modulated output signal
US7894151B2 (en) * 2008-02-15 2011-02-22 Broadcom Corporation “Flat analog” AFE coupled with an all digital architecture compensation read channel
GB2459865B (en) * 2008-05-07 2011-03-16 Wolfson Microelectronics Plc Amplifier Circuit
WO2009153449A2 (fr) * 2008-06-16 2009-12-23 Universite Aix-Marseille I Amplificateur numerique classe d configure pour mettre en forme des non-idealites d'un signal de sortie
US7956783B2 (en) * 2009-01-29 2011-06-07 Analog Devices, Inc. Analog-to-digital converter using digital output as dither
JP2010263483A (ja) * 2009-05-08 2010-11-18 Sony Corp Δς変調器
JP5619883B2 (ja) * 2009-06-26 2014-11-05 シントロピーシステムズSyntropy Systems サンプリング/量子化変換器
US8571237B2 (en) * 2009-07-02 2013-10-29 Amp'd PC Technologies, LLC Multi-zone audio amplification system for multimedia
GB201116299D0 (en) * 2011-09-21 2011-11-02 Aker Subsea Ltd Condition monitoring employing cross-correlation
GB201315389D0 (en) * 2013-08-29 2013-10-16 Analog Devices Technology Closed loop control system, and an amplifier in combination with such a loop control system
US9768686B2 (en) 2014-12-31 2017-09-19 Dialog Semiconductor Inc. Feedback scheme for non-isolated power supply
US10439572B1 (en) * 2018-07-30 2019-10-08 Analog Devices Global Unlimited Company Analog-to-digital converter using discrete time comparator and switched capacitor charge pump
US11055121B1 (en) * 2020-01-30 2021-07-06 Bank Of America Corporation Computer architecture for emulating an integrator in a correlithm object processing system
US12081228B2 (en) * 2021-09-29 2024-09-03 Skyworks Solutions, Inc. Transition smoothing apparatus for reducing spurious input to a system under feedback control

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4843339A (en) * 1987-10-28 1989-06-27 Burr-Brown Corporation Isolation amplifier including precision voltage-to-duty-cycle converter and low ripple, high bandwidth charge balance demodulator
US5241310A (en) * 1992-03-02 1993-08-31 General Electric Company Wide dynamic range delta sigma analog-to-digital converter with precise gain tracking
US5352986A (en) * 1993-01-22 1994-10-04 Digital Fidelity, Inc. Closed loop power controller
DE69418371T2 (de) * 1993-03-17 1999-10-21 Kabushiki Kaisha Toshiba, Kawasaki Schaltung zur Pulsweitenmodulation
US5357252A (en) * 1993-03-22 1994-10-18 Motorola, Inc. Sigma-delta modulator with improved tone rejection and method therefor
US5408233A (en) * 1993-07-29 1995-04-18 Motorola, Inc. Noise source for an analog-to-digital converter
JPH07254823A (ja) * 1994-03-14 1995-10-03 Kenwood Corp デルタシグマ変調増幅器

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106026951A (zh) * 2015-03-31 2016-10-12 美国亚德诺半导体公司 用于电子电路中抗混叠的设备和方法
CN106026951B (zh) * 2015-03-31 2018-11-16 美国亚德诺半导体公司 用于电子电路中抗混叠的设备和方法

Also Published As

Publication number Publication date
EP0906659A1 (en) 1999-04-07
US5777512A (en) 1998-07-07
EP0906659A4 (en) 2002-05-08
KR100451806B1 (ko) 2004-12-09
WO1997049175A1 (en) 1997-12-24
JP2001503929A (ja) 2001-03-21
KR20000016744A (ko) 2000-03-25

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