DE60235913D1 - Offset-kalibrationssystem und verfahren für einen signalkanal mit hoher verstärkung - Google Patents

Offset-kalibrationssystem und verfahren für einen signalkanal mit hoher verstärkung

Info

Publication number
DE60235913D1
DE60235913D1 DE60235913T DE60235913T DE60235913D1 DE 60235913 D1 DE60235913 D1 DE 60235913D1 DE 60235913 T DE60235913 T DE 60235913T DE 60235913 T DE60235913 T DE 60235913T DE 60235913 D1 DE60235913 D1 DE 60235913D1
Authority
DE
Germany
Prior art keywords
signal channel
calibration system
gain signal
offset calibration
offset
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.)
Expired - Lifetime
Application number
DE60235913T
Other languages
English (en)
Inventor
Aidan J Cahalane
Simon Atkinson
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.)
MediaTek Inc
Original Assignee
MediaTek 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 MediaTek Inc filed Critical MediaTek Inc
Application granted granted Critical
Publication of DE60235913D1 publication Critical patent/DE60235913D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H03F3/45479—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection
    • H03F3/45928—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection using IC blocks as the active amplifying circuit
    • H03F3/45968—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection using IC blocks as the active amplifying circuit by offset reduction
    • H03F3/45973—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection using IC blocks as the active amplifying circuit by offset reduction by using a feedback circuit
    • 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
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/372—Noise reduction and elimination in amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • 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)
  • Power Engineering (AREA)
  • Analogue/Digital Conversion (AREA)
  • Manipulation Of Pulses (AREA)
  • Superheterodyne Receivers (AREA)
DE60235913T 2001-12-20 2002-12-18 Offset-kalibrationssystem und verfahren für einen signalkanal mit hoher verstärkung Expired - Lifetime DE60235913D1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US34222301P 2001-12-20 2001-12-20
US10/128,125 US6664840B2 (en) 2001-12-20 2002-04-23 Offset calibration system and method for a high gain signal channel
PCT/US2002/040584 WO2003055057A1 (en) 2001-12-20 2002-12-18 Offset calibration system and method for a high gain signal channel

Publications (1)

Publication Number Publication Date
DE60235913D1 true DE60235913D1 (de) 2010-05-20

Family

ID=26826292

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60235913T Expired - Lifetime DE60235913D1 (de) 2001-12-20 2002-12-18 Offset-kalibrationssystem und verfahren für einen signalkanal mit hoher verstärkung

Country Status (6)

Country Link
US (1) US6664840B2 (de)
EP (1) EP1456941B1 (de)
JP (1) JP4181045B2 (de)
CN (1) CN100420150C (de)
DE (1) DE60235913D1 (de)
WO (1) WO2003055057A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6806756B1 (en) * 2003-06-16 2004-10-19 Delphi Technologies, Inc. Analog signal conditioning circuit having feedback offset cancellation
US7352307B2 (en) * 2006-02-09 2008-04-01 Atmel Corporation Comparator chain offset reduction
CN100444073C (zh) * 2006-07-17 2008-12-17 北京中星微电子有限公司 一种自动电流校准的电路和方法
US7894561B1 (en) * 2007-06-21 2011-02-22 National Semiconductor Corporation Method and system for providing dynamic DC offset correction
JP5611070B2 (ja) * 2011-01-28 2014-10-22 ルネサスエレクトロニクス株式会社 半導体集積回路およびその動作方法
US8760224B2 (en) * 2012-01-20 2014-06-24 Mediatek Inc. Amplifying circuits and calibration methods therefor
DE102012203664A1 (de) * 2012-03-08 2013-09-12 Robert Bosch Gmbh Verfahren zur Nachführung eines Frequenzsignals und korrespondierende Sensoreinheit für ein Fahrzeug
US10050635B2 (en) * 2016-05-23 2018-08-14 Qualcomm Incorporated Amplifier calibration

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5208595A (en) * 1991-08-21 1993-05-04 Wavephore, Inc. Digitally controlled adaptive slew rate delta modulator
US5319679A (en) * 1992-12-09 1994-06-07 Datum Systems Method and apparatus for recovering data from a radio signal
US5459679A (en) 1994-07-18 1995-10-17 Quantum Corporation Real-time DC offset control and associated method
US5761251A (en) 1995-11-08 1998-06-02 Philips Electronics North America Corporation Dual automatic gain control and DC offset correction circuit for QAM demodulation
US6069528A (en) * 1997-07-31 2000-05-30 Matsushita Electric Industrial Co., Ltd. Automatic microwave gain control device
US6069866A (en) * 1997-10-23 2000-05-30 Cirrus Logic, Inc. System and method for coarse gain control of wide band amplifiers
US6493404B1 (en) * 1999-03-01 2002-12-10 Sharp Kabushiki Kaisha Recycling integrator correlator
US6114980A (en) 1999-04-13 2000-09-05 Motorola, Inc. Method and apparatus for settling a DC offset
US6166668A (en) 1999-06-01 2000-12-26 Motorola, Inc. Method and apparatus for providing DC offset correction and hold capability
US6317064B1 (en) 2000-02-29 2001-11-13 Motorola, Inc. DC offset correction adaptable to multiple requirements
GR1003688B (el) * 2000-07-14 2001-10-05 Ιντρακομ Α.Ε. Ελληνικη Βιομηχανια Τηλεπικοινωνιων Και Συστηματ... Μηχανισμος διορθωσης τασης εκτροπης και ενισχυτης ελεγχομενου κερδους σε δεκτες αμεσης μεταδοσης.

Also Published As

Publication number Publication date
EP1456941B1 (de) 2010-04-07
WO2003055057A1 (en) 2003-07-03
US20030117205A1 (en) 2003-06-26
US6664840B2 (en) 2003-12-16
CN1606827A (zh) 2005-04-13
JP2005514811A (ja) 2005-05-19
JP4181045B2 (ja) 2008-11-12
CN100420150C (zh) 2008-09-17
EP1456941A1 (de) 2004-09-15

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Legal Events

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