AU2001240015A1 - Digital-to-analog interface circuit having adjustable time response - Google Patents

Digital-to-analog interface circuit having adjustable time response

Info

Publication number
AU2001240015A1
AU2001240015A1 AU2001240015A AU4001501A AU2001240015A1 AU 2001240015 A1 AU2001240015 A1 AU 2001240015A1 AU 2001240015 A AU2001240015 A AU 2001240015A AU 4001501 A AU4001501 A AU 4001501A AU 2001240015 A1 AU2001240015 A1 AU 2001240015A1
Authority
AU
Australia
Prior art keywords
signal
modulator
circuit
time response
digital
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.)
Abandoned
Application number
AU2001240015A
Other languages
English (en)
Inventor
Emilija Simic
Thomas Wilborn
Saed Younis
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.)
Qualcomm Inc
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 AU2001240015A1 publication Critical patent/AU2001240015A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K7/00—Modulating pulses with a continuously-variable modulating signal
    • H03K7/08—Duration or width modulation ; Duty cycle modulation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3036—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers
    • 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
    • H03M3/37—Compensation or reduction of delay or phase error
    • H03M3/374—Relaxation of settling time constraints, e.g. slew rate enhancement
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/331—Sigma delta modulation being used in an amplifying circuit
    • 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
    • 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
    • H03M7/3002—Conversion to or from differential modulation
    • H03M7/3004—Digital delta-sigma modulation
    • H03M7/3015—Structural details of digital delta-sigma modulators
    • H03M7/3031—Structural details of digital delta-sigma modulators characterised by the order of the loop filter, e.g. having a first 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)
  • Analogue/Digital Conversion (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Amplifiers (AREA)
  • Electronic Switches (AREA)
AU2001240015A 2000-03-04 2001-03-02 Digital-to-analog interface circuit having adjustable time response Abandoned AU2001240015A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/517,766 US6292122B1 (en) 2000-03-04 2000-03-04 Digital-to-analog interface circuit having adjustable time response
US09517766 2000-03-04
PCT/US2001/006803 WO2001067591A2 (en) 2000-03-04 2001-03-02 Digital-to-analog interface circuit having adjustable time response

Publications (1)

Publication Number Publication Date
AU2001240015A1 true AU2001240015A1 (en) 2001-09-17

Family

ID=24061141

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001240015A Abandoned AU2001240015A1 (en) 2000-03-04 2001-03-02 Digital-to-analog interface circuit having adjustable time response

Country Status (9)

Country Link
US (1) US6292122B1 (ja)
EP (1) EP1264394B1 (ja)
JP (4) JP2003526979A (ja)
KR (1) KR100716378B1 (ja)
CN (1) CN1423859A (ja)
AU (1) AU2001240015A1 (ja)
CA (1) CA2401893C (ja)
HK (1) HK1054631A1 (ja)
WO (1) WO2001067591A2 (ja)

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JP3772970B2 (ja) * 2001-10-29 2006-05-10 ソニー株式会社 Ｄ／ａ変換器および出力増幅回路
KR100493031B1 (ko) * 2002-11-08 2005-06-07 삼성전자주식회사 액정 표시 장치를 구동하는 반응 시간 가속 장치 및 그 방법
US6940189B2 (en) 2003-07-31 2005-09-06 Andrew Roman Gizara System and method for integrating a digital core with a switch mode power supply
US6885322B2 (en) * 2003-08-05 2005-04-26 Motorola, Inc. Apparatus and method for transmitter phase shift compensation
US7203511B2 (en) * 2004-01-20 2007-04-10 Broadcom Corporation Control of transmit power of a radio frequency integrated circuit
KR100638592B1 (ko) * 2004-12-11 2006-10-26 한국전자통신연구원 Ｏｆｄｍ 시스템의 단말의 수신기용 ｄｃ 오프셋 제거 장치및 그 방법
JP4116005B2 (ja) * 2005-02-18 2008-07-09 シャープ株式会社 デルタシグマ変調器およびそれを用いたスイッチング増幅回路
US20060217082A1 (en) * 2005-03-22 2006-09-28 Georg Fischer Shaping noise in power amplifiers of duplex communication systems
US7889019B2 (en) * 2006-10-13 2011-02-15 Andrew Roman Gizara Pulse width modulation sequence generating a near critical damped step response
EP2076822B1 (en) * 2006-10-13 2010-08-25 IPower Holdings LLC Pulse width modulation sequence generating a near critical damped step response
US7719336B2 (en) * 2006-10-31 2010-05-18 Andrew Roman Gizara Pulse width modulation sequence maintaining maximally flat voltage during current transients
JP5146456B2 (ja) * 2007-09-26 2013-02-20 富士通株式会社 送受信増幅器および遅延偏差補償方法
DE102008026019B4 (de) * 2008-05-30 2010-04-08 Micronas Gmbh Digital-Analog-Wandler-Schaltungsanordnung
JP6308796B2 (ja) * 2014-02-14 2018-04-11 セイコーＮｐｃ株式会社 ディジタル温度補償発振器
US20150341158A1 (en) * 2014-05-23 2015-11-26 Mediatek Inc. Loop gain calibration apparatus for controlling loop gain of timing recovery loop and related loop gain calibration method
JP6460458B2 (ja) * 2014-12-05 2019-01-30 セイコーＮｐｃ株式会社 デジタル温度補償型発振器
JP6425581B2 (ja) * 2015-02-26 2018-11-21 セイコーＮｐｃ株式会社 ディジタル温度補償発振器
EP3382969A1 (en) * 2017-03-31 2018-10-03 Intel IP Corporation Modulation circuit and apparatus, demodulation circuit and apparatus, transmitter, receiver, system, radio frequency circuit, mobile terminal, methods and computer programs for modulating and demodulating
KR102553262B1 (ko) * 2017-11-17 2023-07-07 삼성전자 주식회사 기준 전압 생성기 및 이를 포함하는 메모리 장치
CN111697952B (zh) * 2020-06-22 2023-11-10 四川新先达测控技术有限公司 一种基于数字pzc系统调节脉冲宽度的方法及系统
CN115514363B (zh) * 2022-11-09 2023-01-20 南方电网数字电网研究院有限公司 低功耗模数转换电路

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JPS63274214A (ja) * 1987-05-01 1988-11-11 Kokusai Electric Co Ltd ディジタル・アナログ変換回路
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Also Published As

Publication number Publication date
CA2401893C (en) 2008-10-14
EP1264394B1 (en) 2012-08-22
WO2001067591A2 (en) 2001-09-13
WO2001067591A9 (en) 2003-01-09
JP5752764B2 (ja) 2015-07-22
KR20020086601A (ko) 2002-11-18
HK1054631A1 (zh) 2003-12-05
KR100716378B1 (ko) 2007-05-11
EP1264394A2 (en) 2002-12-11
CN1423859A (zh) 2003-06-11
US6292122B1 (en) 2001-09-18
JP2014039276A (ja) 2014-02-27
JP2015146604A (ja) 2015-08-13
JP2012075130A (ja) 2012-04-12
WO2001067591A3 (en) 2002-03-07
CA2401893A1 (en) 2001-09-13
JP2003526979A (ja) 2003-09-09

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