BR9911734A - Método e equipamento para correção de deslocamento cc em conversores digital-para-analógico - Google Patents

Método e equipamento para correção de deslocamento cc em conversores digital-para-analógico

Info

Publication number
BR9911734A
BR9911734A BR9911734-7A BR9911734A BR9911734A BR 9911734 A BR9911734 A BR 9911734A BR 9911734 A BR9911734 A BR 9911734A BR 9911734 A BR9911734 A BR 9911734A
Authority
BR
Brazil
Prior art keywords
signals
digital
analog
offset
transmission signals
Prior art date
Application number
BR9911734-7A
Other languages
English (en)
Inventor
Brett Christopher Walker
Original Assignee
Qualcomm 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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of BR9911734A publication Critical patent/BR9911734A/pt

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/38—Angle modulation by converting amplitude modulation to angle modulation
    • H03C3/40—Angle modulation by converting amplitude modulation to angle modulation using two signal paths the outputs of which have a predetermined phase difference and at least one output being amplitude-modulated
    • 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
    • H03M1/0602—Continuously compensating for, or preventing, undesired influence of physical parameters of deviations from the desired transfer characteristic
    • H03M1/0604—Continuously compensating for, or preventing, undesired influence of physical parameters of deviations from the desired transfer characteristic at one point, i.e. by adjusting a single reference value, e.g. bias or gain error
    • H03M1/0607—Offset or drift compensation
    • 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
    • H03M1/0617—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence
    • H03M1/0675—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence using redundancy
    • H03M1/0678—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence using redundancy using additional components or elements, e.g. dummy components
    • H03M1/068—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence using redundancy using additional components or elements, e.g. dummy components the original and additional components or elements being complementary to each other, e.g. CMOS
    • H03M1/0682—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence using redundancy using additional components or elements, e.g. dummy components the original and additional components or elements being complementary to each other, e.g. CMOS using a differential network structure, i.e. symmetrical with respect to ground
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/66—Digital/analogue converters

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Analogue/Digital Conversion (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Dc Digital Transmission (AREA)
  • Automatic Disk Changers (AREA)

Abstract

"MéTODO E EQUIPAMENTO PARA CORREçãO DE DESLOCAMENTO CC EM CONVERSORES DIGITAL-PARA-ANALóGICO". Um método e equipamento para corrigir de modo adaptável erros de offset ou deslocamento CC impostos sobre sinais em um dispositivo de comunicação. A invenção inclui um circuito de correção de loop de realimentação (122) e um método para medir e reduzir os erros de offset ou deslocamento CC impostos sobre sinais de transmissão analógicos por conversores digital-para-analógico (DACS) de transmissão (102) e filtros analógicos de reconstrução associados. Um loop de realimentação digital é usado para remover erros de offset CC dos sinais de transmissão analógicos antes da transmissão. Em uma modalidade, o loop de realimentação digital inclui um par de conversores analógico para digital, um circuito de correção de offset CC digital (222) e um par de adicionadores (228, 230) . os sinais de transmissão são digitalizados, filtrados e digitalmente processados pelo circuito de correção (222) para gerar sinais de correção de offset que são iguais ao erro de offset CC indesejado presente nos sinais de transmissão. Os sinais de correção são adicionados aos sinais digitais de banda base de entrada desse modo removendo os erros de offset CC indesejados dos sinais de transmissão.
BR9911734-7A 1998-06-30 1999-06-29 Método e equipamento para correção de deslocamento cc em conversores digital-para-analógico BR9911734A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/107,054 US6154158A (en) 1998-06-30 1998-06-30 Digital-to-analog converter D.C. offset correction comparing converter input and output signals
PCT/US1999/014656 WO2000001073A1 (en) 1998-06-30 1999-06-29 Method and apparatus for d.c. offset correction in digital-to-analog converters

Publications (1)

Publication Number Publication Date
BR9911734A true BR9911734A (pt) 2002-04-23

Family

ID=22314600

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9911734-7A BR9911734A (pt) 1998-06-30 1999-06-29 Método e equipamento para correção de deslocamento cc em conversores digital-para-analógico

Country Status (14)

Country Link
US (2) US6154158A (pt)
EP (1) EP1090461B1 (pt)
JP (2) JP4422333B2 (pt)
KR (1) KR100562730B1 (pt)
CN (1) CN1183678C (pt)
AT (1) ATE313169T1 (pt)
AU (1) AU759884B2 (pt)
BR (1) BR9911734A (pt)
CA (1) CA2334999A1 (pt)
DE (1) DE69928934T2 (pt)
ES (1) ES2258334T3 (pt)
HK (1) HK1036530A1 (pt)
ID (1) ID28175A (pt)
WO (1) WO2000001073A1 (pt)

Families Citing this family (68)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6137826A (en) * 1997-11-17 2000-10-24 Ericsson Inc. Dual-mode modulation systems and methods including oversampling of narrow bandwidth signals
JP2000151403A (ja) * 1998-11-04 2000-05-30 Internatl Business Mach Corp <Ibm> デジタル／アナログ変換器及び変換方法
US6611567B1 (en) * 1999-01-29 2003-08-26 Agere Systems, Inc. Method and apparatus for pulse shaping
US6434204B1 (en) * 1999-03-04 2002-08-13 Lucent Technologies Inc. Method and system for DC offset correction of a quadrature modulated RF signal
SE514770C2 (sv) * 1999-05-25 2001-04-23 Ericsson Telefon Ab L M Förfarande och arrangemang för korrigering av offsetfel vid A/D-omvandling
DE19948370A1 (de) * 1999-10-06 2001-06-21 Infineon Technologies Ag Einrichtung und Verfahren zur Verarbeitung eines digitalen Datensignals in einem CDMA-Funksender
US7170996B1 (en) * 1999-10-18 2007-01-30 Qualcomm Incorporated Random number generation for encrypting cellular communications
US6658065B1 (en) * 2000-02-29 2003-12-02 Skyworks Solutions, Inc. System of and method for reducing or eliminating the unwanted sideband in the output of a transmitter comprising a quadrature modulator followed by a translational loop
JP3515747B2 (ja) * 2000-09-29 2004-04-05 沖電気工業株式会社 ディジタル・アナログ変換回路
US6907235B2 (en) * 2001-01-02 2005-06-14 Texas Instruments Incorporated Apparatus and method for canceling DC offset in communications signals
EP1282256B1 (en) * 2001-08-01 2006-10-04 Alcatel Measurement of the eye-opening of a signal
US20030021357A1 (en) * 2001-07-24 2003-01-30 Victor Korol Method and apparatus of zero deflection
DE10136741A1 (de) * 2001-07-27 2002-10-31 Infineon Technologies Ag Schaltungsanordnung zur Regelung eines Signal-Gleichanteils und Mobilfunksender
TW521499B (en) * 2002-02-18 2003-02-21 Winbond Electronics Corp Direct digital synthesizer
DE10226326A1 (de) * 2002-06-11 2004-01-15 Schering Ag 9-alpha-substiuierte Estratriene als selektiv wirksame Estrogene
US6737999B2 (en) * 2002-09-03 2004-05-18 Analog Devices, Inc. Mismatch-shaping for a quadrature digital-to-analog converter
US7627479B2 (en) * 2003-02-21 2009-12-01 Motionpoint Corporation Automation tool for web site content language translation
KR20050115258A (ko) * 2003-02-28 2005-12-07 실리콘 래버래토리즈 , 인코포레이티드 라디오 주파수 수신기를 위한 튜너 및 그와 관련된 방법
US7425995B2 (en) * 2003-02-28 2008-09-16 Silicon Laboratories, Inc. Tuner using a direct digital frequency synthesizer, television receiver using such a tuner, and method therefor
US7358885B2 (en) * 2003-02-28 2008-04-15 Silicon Laboratories, Inc. Mixing DAC architectures for a radio frequency receiver
US7447493B2 (en) * 2003-02-28 2008-11-04 Silicon Laboratories, Inc. Tuner suitable for integration and method for tuning a radio frequency signal
JP2005005873A (ja) * 2003-06-10 2005-01-06 Matsushita Electric Ind Co Ltd オフセット補償機能付きｄ／ａ変換装置およびｄ／ａ変換装置のオフセット補償方法
US6919833B2 (en) * 2003-09-04 2005-07-19 Regan N. Mills Parallel converter topology for reducing non-linearity errors
TWI236233B (en) * 2003-12-26 2005-07-11 Winbond Electronics Corp Apparatus and method for detecting and compensating current offset
TWI235555B (en) * 2004-03-18 2005-07-01 Mediatek Inc DAC DC offset calibration method and related apparatus
US8204466B2 (en) 2004-05-21 2012-06-19 Realtek Semiconductor Corp. Dynamic AC-coupled DC offset correction
JP3971414B2 (ja) * 2004-07-16 2007-09-05 ローム株式会社 Ａ／ｄ変換装置、およびこれを用いた通信機器
US7701297B1 (en) 2005-06-30 2010-04-20 Cypress Semiconductor Corporation Spread spectrum frequency synthesizer with improved frequency shape by adjusting the length of a standard curve used for spread spectrum modulation
US8174326B1 (en) * 2005-06-30 2012-05-08 Cypress Semiconductor Corporation Phase lock loop control error selection system and method
US7948327B1 (en) 2005-06-30 2011-05-24 Cypress Semiconductor Corporation Simplified phase lock loop control model system and method
US8072277B1 (en) 2005-06-30 2011-12-06 Cypress Semiconductor Corporation Spread spectrum frequency synthesizer
US7741918B1 (en) 2005-06-30 2010-06-22 Cypress Semiconductor Corporation System and method for an enhanced noise shaping for spread spectrum modulation
US7961059B1 (en) 2005-06-30 2011-06-14 Cypress Semiconductor Corporation Phase lock loop control system and method with non-consecutive feedback divide values
US7813411B1 (en) 2005-06-30 2010-10-12 Cypress Semiconductor Corporation Spread spectrum frequency synthesizer with high order accumulation for frequency profile generation
US7932787B1 (en) 2005-06-30 2011-04-26 Cypress Semiconductor Corporation Phase lock loop control system and method
US7912109B1 (en) 2005-06-30 2011-03-22 Cypress Semiconductor Corporation Spread spectrum frequency synthesizer with first order accumulation for frequency profile generation
US7773968B2 (en) * 2006-11-30 2010-08-10 Silicon Laboratories, Inc. Interface/synchronization circuits for radio frequency receivers with mixing DAC architectures
CN101212436B (zh) * 2006-12-25 2010-11-03 联芯科技有限公司 高通滤波器的频响特性的补偿装置及方法及零中频接收机
TW200917667A (en) * 2007-05-16 2009-04-16 Intellectual Ventures Holding 40 Llc Low-power digital-to-analog converter
JP2008292325A (ja) * 2007-05-24 2008-12-04 Sanyo Electric Co Ltd 信号検出回路
US8285554B2 (en) * 2007-07-27 2012-10-09 Dsp Group Limited Method and system for dynamic aliasing suppression
US8503695B2 (en) * 2007-09-28 2013-08-06 Qualcomm Incorporated Suppressing output offset in an audio device
CN101494443B (zh) * 2008-01-23 2011-10-12 财团法人工业技术研究院 直流偏移校正电路及方法
US7782127B2 (en) * 2008-01-25 2010-08-24 Broadcom Corporation Multi-mode reconstruction filter
US7825844B2 (en) * 2008-02-06 2010-11-02 Qualcomm Incorporated Adaptive high-order digital-to-analog conversion
CN101552753B (zh) * 2008-03-31 2012-12-26 晨星半导体股份有限公司 无线通信装置的直流偏移校正电路及其校正方法
DE102008038356B4 (de) * 2008-08-19 2010-05-12 Siemens Aktiengesellschaft Zählratengesteuertes Schema einer elektronischen Schaltung zur Bereitstellung eines stabilen Basispegelsignals für hohe Signalintensitäten
JP2010054218A (ja) * 2008-08-26 2010-03-11 Toyota Central R&D Labs Inc デジタル信号処理装置及びそれを有するフェーズドアレイレーダ
US20120288035A1 (en) * 2011-05-11 2012-11-15 Udo Karthaus Base-band to radio frequency up-converter
JP5742556B2 (ja) * 2011-07-29 2015-07-01 富士通セミコンダクター株式会社 Ａｄｃ
US8471741B2 (en) * 2011-11-14 2013-06-25 Analog Devices, Inc. Method and device for reducing inter-channel coupling in interleaved and multi-channel ADCs
US8681026B2 (en) * 2012-02-29 2014-03-25 Silicon Laboratories Inc. Digital to analog converter
CN103532891B (zh) * 2012-07-06 2016-09-07 展讯通信（上海）有限公司 接收机及直流估计方法和装置、直流消除方法和装置
KR101987284B1 (ko) 2012-12-13 2019-06-10 삼성전자주식회사 ＯＯＫ（Ｏｎ－Ｏｆｆ Ｋｅｙｉｎｇ）수신기에서 송신 심볼의 검출을 위한 임계값을 적응적으로 설정하는 장치 및 방법
JP6150245B2 (ja) 2013-03-07 2017-06-21 インターナショナル・ビジネス・マシーンズ・コーポレーションＩｎｔｅｒｎａｔｉｏｎａｌ Ｂｕｓｉｎｅｓｓ Ｍａｃｈｉｎｅｓ Ｃｏｒｐｏｒａｔｉｏｎ 送信装置、受信装置、通信システム、回路装置、通信方法およびプログラム
US9154147B2 (en) * 2013-03-15 2015-10-06 Integrated Device Technology Inc. Systems and methods for estimation of offset and gain errors in a time-interleaved analog-to-digital converter
KR101975830B1 (ko) 2013-04-02 2019-05-09 한국전자통신연구원 빔 형성 장치 및 그것의 빔 형성 방법
US9130586B1 (en) * 2013-11-14 2015-09-08 Systems & Technology Research, Llc System and method of digital-to-analog signal conversion
KR20150144196A (ko) 2014-06-16 2015-12-24 삼성전기주식회사 오프셋 상쇄 장치, 그를 이용한 아날로그-디지털 변환기 및 아날로그-디지털 변환기의 오프셋 상쇄 방법
ITUB20153503A1 (it) * 2015-09-09 2017-03-09 St Microelectronics Srl Procedimento e dispositivo di controllo della dinamica, apparecchiatura e prodotto informatico
CN105337615A (zh) * 2015-12-01 2016-02-17 深圳市思榕科技有限公司 一种产生高精度dac电压的方法
CN109073693B (zh) * 2016-04-29 2021-06-11 泰瑞达（上海）有限公司 用于提供准确模拟信号的方法和测试系统
US10243614B1 (en) * 2018-01-26 2019-03-26 Kandou Labs, S.A. Method and system for calibrating multi-wire skew
DE102018106071B4 (de) * 2018-03-15 2019-12-12 Tdk Electronics Ag Verstärkerschaltungsanordnung und Verfahren zum Kalibrieren derselben
CN111030690B (zh) * 2019-12-24 2023-09-15 山东浪潮科学研究院有限公司 一种零中频波形发生系统的直流偏置校准装置及方法
US11368277B1 (en) 2021-04-21 2022-06-21 Apple Inc. Accurate sign change for radio frequency transmitters
US11489535B1 (en) * 2021-05-11 2022-11-01 Nxp B.V. Analog-to-digital converter (ADC) testing
CN113670357A (zh) * 2021-08-03 2021-11-19 深圳市汇川技术股份有限公司 信号处理方法及电路

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60165831A (ja) * 1984-02-09 1985-08-29 Sharp Corp Ｐｃｍ方式再生装置
JPH02308643A (ja) * 1989-05-24 1990-12-21 Toshiba Corp ディジタル変調器
FI96811C (fi) * 1993-11-30 1996-08-26 Nokia Mobile Phones Ltd Menetelmä ja piirijärjestely D/A-muuntimen DC-erojännitteen kompensoimiseksi
JPH09261053A (ja) * 1996-03-18 1997-10-03 Hitachi Ltd Ｄ／ａ変換出力回路
US6100827A (en) * 1998-09-11 2000-08-08 Ericsson Inc. Modulation systems and methods that compensate for DC offset introduced by the digital-to-analog converter and/or the low pass filter thereof

Also Published As

Publication number Publication date
EP1090461A1 (en) 2001-04-11
CA2334999A1 (en) 2000-01-06
US6154158A (en) 2000-11-28
ID28175A (id) 2001-05-10
ES2258334T3 (es) 2006-08-16
CN1183678C (zh) 2005-01-05
WO2000001073A1 (en) 2000-01-06
ATE313169T1 (de) 2005-12-15
KR20010053265A (ko) 2001-06-25
JP2002519925A (ja) 2002-07-02
EP1090461B1 (en) 2005-12-14
AU4726199A (en) 2000-01-17
DE69928934T2 (de) 2006-08-24
AU759884B2 (en) 2003-05-01
HK1036530A1 (en) 2002-01-04
US6278391B1 (en) 2001-08-21
JP4589443B2 (ja) 2010-12-01
JP2010045792A (ja) 2010-02-25
CN1307749A (zh) 2001-08-08
KR100562730B1 (ko) 2006-03-20
JP4422333B2 (ja) 2010-02-24
DE69928934D1 (de) 2006-01-19

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