CN101124721A - 数字时间常数跟踪技术和装置 - Google Patents

数字时间常数跟踪技术和装置 Download PDF

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Publication number
CN101124721A
CN101124721A CNA2006800053727A CN200680005372A CN101124721A CN 101124721 A CN101124721 A CN 101124721A CN A2006800053727 A CNA2006800053727 A CN A2006800053727A CN 200680005372 A CN200680005372 A CN 200680005372A CN 101124721 A CN101124721 A CN 101124721A
Authority
CN
China
Prior art keywords
time constant
network
digital time
tracking circuit
reference voltage
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.)
Pending
Application number
CNA2006800053727A
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English (en)
Chinese (zh)
Inventor
克里斯·J·罗切福特
克莱门特·R·科普利洛
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.)
NXP USA Inc
Original Assignee
Freescale Semiconductor 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 Freescale Semiconductor Inc filed Critical Freescale Semiconductor Inc
Publication of CN101124721A publication Critical patent/CN101124721A/zh
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H1/00—Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network
    • H03H1/02—RC networks, e.g. filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H2210/00—Indexing scheme relating to details of tunable filters
    • H03H2210/04—Filter calibration method
    • H03H2210/043—Filter calibration method by measuring time constant
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J2200/00—Indexing scheme relating to tuning resonant circuits and selecting resonant circuits
    • H03J2200/10—Tuning of a resonator by means of digitally controlled capacitor bank

Landscapes

  • Semiconductor Integrated Circuits (AREA)
  • Tests Of Electronic Circuits (AREA)
  • Filters And Equalizers (AREA)
  • Electronic Switches (AREA)
  • Networks Using Active Elements (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
CNA2006800053727A 2005-03-25 2006-03-10 数字时间常数跟踪技术和装置 Pending CN101124721A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/089,963 US7190213B2 (en) 2005-03-25 2005-03-25 Digital time constant tracking technique and apparatus
US11/089,963 2005-03-25

Publications (1)

Publication Number Publication Date
CN101124721A true CN101124721A (zh) 2008-02-13

Family

ID=37034601

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2006800053727A Pending CN101124721A (zh) 2005-03-25 2006-03-10 数字时间常数跟踪技术和装置

Country Status (5)

Country Link
US (1) US7190213B2 (https=)
JP (1) JP2008535316A (https=)
CN (1) CN101124721A (https=)
TW (1) TW200641568A (https=)
WO (1) WO2006104671A1 (https=)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102426416A (zh) * 2011-09-05 2012-04-25 广东电网公司电力科学研究院 控制对象频域幅值特性辩识方法和装置
CN104782047A (zh) * 2012-10-31 2015-07-15 迪尔阿扣基金两合公司 压电键感测电路以及用于测试该压电键感测电路的方法
CN109794405A (zh) * 2019-02-18 2019-05-24 河南中医药大学 高强度聚焦超声信号校准电路
CN114927150A (zh) * 2021-02-12 2022-08-19 美光科技公司 估计电路的电阻-电容时间常数

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006005778A1 (de) * 2006-02-03 2007-08-16 Atmel Germany Gmbh Verfahren und Schaltung zum Ableichen eines RC-Gliedes
EP1962420B1 (en) * 2007-02-23 2010-04-07 STMicroelectronics Srl High-precision calibration circuit calibrating an adjustable capacitance of an integrated circuit having a time constant depending on said capacitance
US9065324B2 (en) * 2013-10-23 2015-06-23 Taiwan Semiconductor Manufacturing Company, Ltd. Electronic device with PVT delay compensation and related method
EP2930647B1 (en) * 2014-04-11 2018-08-08 Nxp B.V. Contactless communication device with receiver input voltage stabilization

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0834403B2 (ja) * 1989-04-24 1996-03-29 日本電気株式会社 アクティブフィルタ
US5392456A (en) * 1989-10-06 1995-02-21 Hitachi, Ltd. Method of controlling filter time constant and filter circuit having the time constant control function based on the method
US5416438A (en) 1992-03-18 1995-05-16 Nec Corporation Active filter circuit suited to integration on IC chip
US5663675A (en) 1995-06-07 1997-09-02 American Microsystems, Inc. Multiple stage tracking filter using a self-calibrating RC oscillator circuit
US5914633A (en) 1997-08-08 1999-06-22 Lucent Technologies Inc. Method and apparatus for tuning a continuous time filter
FR2775141B1 (fr) * 1998-02-19 2002-10-11 Sgs Thomson Microelectronics Dispositif d'etalonnage de constantes de temps
JP2000004143A (ja) * 1998-06-17 2000-01-07 Nec Corp アナログデータ処理装置
US6259311B1 (en) 1998-12-23 2001-07-10 Agere Systems Guardian Corp. Method and apparatus for tuning filters
US6417727B1 (en) * 1999-11-30 2002-07-09 Koninklijke Philips Electronics N.V. Circuit for automatically tuning filter circuits over process, voltage, and temperature
EP1158303A1 (en) * 2000-05-25 2001-11-28 Semiconductor Ideas to The Market (ItoM) BV A circuit for measuring absolute spread in capacitors implemented in planary technology
SE519372C2 (sv) * 2001-03-09 2003-02-18 Nat Semiconductor Corp Metod och krets för filtertrimning
DE10156027B4 (de) 2001-11-15 2012-02-09 Globalfoundries Inc. Abgleichbare Filterschaltung
US6677814B2 (en) 2002-01-17 2004-01-13 Microtune (San Diego), Inc. Method and apparatus for filter tuning
US6803813B1 (en) * 2003-04-22 2004-10-12 National Semiconductor Corporation Time constant-based calibration circuit for active filters

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102426416A (zh) * 2011-09-05 2012-04-25 广东电网公司电力科学研究院 控制对象频域幅值特性辩识方法和装置
CN104782047A (zh) * 2012-10-31 2015-07-15 迪尔阿扣基金两合公司 压电键感测电路以及用于测试该压电键感测电路的方法
CN109794405A (zh) * 2019-02-18 2019-05-24 河南中医药大学 高强度聚焦超声信号校准电路
CN114927150A (zh) * 2021-02-12 2022-08-19 美光科技公司 估计电路的电阻-电容时间常数
US11615846B2 (en) 2021-02-12 2023-03-28 Micron Technology, Inc. Estimating resistance-capacitance time constant of electrical circuit

Also Published As

Publication number Publication date
JP2008535316A (ja) 2008-08-28
WO2006104671A1 (en) 2006-10-05
US20060214725A1 (en) 2006-09-28
TW200641568A (en) 2006-12-01
US7190213B2 (en) 2007-03-13

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