FI933310A0 - Frekvensinstaellninssystem foer ett ota-c-par - Google Patents

Frekvensinstaellninssystem foer ett ota-c-par

Info

Publication number
FI933310A0
FI933310A0 FI933310A FI933310A FI933310A0 FI 933310 A0 FI933310 A0 FI 933310A0 FI 933310 A FI933310 A FI 933310A FI 933310 A FI933310 A FI 933310A FI 933310 A0 FI933310 A0 FI 933310A0
Authority
FI
Finland
Prior art keywords
frekvensinstaellninssystem
ota
par
foer ett
ett
Prior art date
Application number
FI933310A
Other languages
English (en)
Other versions
FI933310A (fi
FI108585B (fi
Inventor
Johannes Mathilda Jo Sevenhans
Paemel Mark Gerrit Steven Van
Original Assignee
Alcatel Nv
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 Alcatel Nv filed Critical Alcatel Nv
Publication of FI933310A0 publication Critical patent/FI933310A0/fi
Publication of FI933310A publication Critical patent/FI933310A/fi
Application granted granted Critical
Publication of FI108585B publication Critical patent/FI108585B/fi

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/0422—Frequency selective two-port networks using transconductance amplifiers, e.g. gmC filters
    • H03H11/0472—Current or voltage controlled filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/0422—Frequency selective two-port networks using transconductance amplifiers, e.g. gmC filters
    • H03H11/0433—Two integrator loop filters
FI933310A 1992-07-24 1993-07-22 Taajuusviritysjärjestelmä OTA-C-parille FI108585B (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP92202293A EP0579876B1 (en) 1992-07-24 1992-07-24 Frequency tuning system for an OTA-C pair
EP92202293 1992-07-24

Publications (3)

Publication Number Publication Date
FI933310A0 true FI933310A0 (fi) 1993-07-22
FI933310A FI933310A (fi) 1994-01-25
FI108585B FI108585B (fi) 2002-02-15

Family

ID=8210807

Family Applications (1)

Application Number Title Priority Date Filing Date
FI933310A FI108585B (fi) 1992-07-24 1993-07-22 Taajuusviritysjärjestelmä OTA-C-parille

Country Status (6)

Country Link
US (1) US5440264A (fi)
EP (1) EP0579876B1 (fi)
JP (1) JP3316038B2 (fi)
DE (1) DE69226862T2 (fi)
ES (1) ES2123538T3 (fi)
FI (1) FI108585B (fi)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3208975B2 (ja) * 1993-12-28 2001-09-17 株式会社日立製作所 アクティブフィルタ制御方式
US5625317A (en) * 1994-08-08 1997-04-29 Texas Instruments Incorporated Tuning method for integrated continuous-time filters
ES2162891T3 (es) * 1995-02-10 2002-01-16 Cit Alcatel Integrador gm-c sintonizable lineal.
US5650747A (en) * 1995-10-05 1997-07-22 Chen; Xiaole Circuit technique for implementing programmable zeros in high speed CMOS filters
GB2307626B (en) * 1995-11-24 2000-06-07 Nokia Mobile Phones Ltd A signal receiver
KR100187200B1 (ko) * 1996-07-12 1999-04-15 김광호 트랜스 컨덕턴스를 이용한 차단 주파수 안정화 장치
US6266522B1 (en) 1998-02-04 2001-07-24 Ericsson Inc. Apparatus and methods for tuning bandpass filters
AU3485200A (en) * 1999-02-08 2000-08-25 Boris Briskin Signal processing system using improved transconductance cell
US6310512B1 (en) 1999-11-22 2001-10-30 Cardiac Pacemakers, Inc. Integrated self-adjustable continuous time band pass filter based upon Gm cell with bipolar transistors
US6287263B1 (en) 1999-02-08 2001-09-11 Cardiac Pacemakers, Inc. System for processing bursted amplitude modulated signals using an impedance sensor
US6137375A (en) * 1999-05-28 2000-10-24 The Trustees Of Columbia University In The City Of New York Loss control loop circuit for controlling the output voltage of a voltage-controlled oscillator
US6954774B1 (en) * 2001-12-20 2005-10-11 Rockwell Collins Bandpass filter with ability to tune a pass frequency, passband gain and filter Q
US6600373B1 (en) 2002-07-31 2003-07-29 Agere Systems, Inc. Method and circuit for tuning a transconductance amplifier
US7486338B1 (en) 2003-04-28 2009-02-03 Wyszynski Adam S Fully integrated terrestrial TV tuner architecture
US6917252B1 (en) 2003-04-28 2005-07-12 Adam S. Wyszynski Fully integrated automatically-tuned RF and IF active bandpass filters
US7098731B1 (en) * 2004-01-13 2006-08-29 Wyszynski Adam S Synthesis method for an active polyphase filter
US7400212B1 (en) 2005-06-07 2008-07-15 Vishinsky Adam S Self-tuned active bandpass filters
FR2892872B1 (fr) * 2005-11-02 2008-01-04 Atmel Corp Filtre passe-bande complexe
US7463086B2 (en) * 2006-11-17 2008-12-09 O2Micro International Ltd. Apparatus and method for tuning a band pass filter
US7622991B2 (en) * 2007-08-22 2009-11-24 Don Roy Sauer Transconductance signal capacity format
US8390371B2 (en) * 2010-07-30 2013-03-05 Tialinx, Inc. Tunable transconductance-capacitance filter with coefficients independent of variations in process corner, temperature, and input supply voltage

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3528040A (en) * 1968-12-12 1970-09-08 Aerospace Res Electronically variable filter
US4340868A (en) * 1980-05-12 1982-07-20 Motorola, Inc. Current mode biquadratic active filter
NL8401370A (nl) * 1984-05-01 1985-12-02 Philips Nv Filterschakeling.
JPH0648775B2 (ja) * 1989-05-24 1994-06-22 東光株式会社 リープフロッグ・フィルタ
US5117205A (en) * 1990-05-01 1992-05-26 U.S. Philips Corporation Electrically controllable oscillator circuit, and electrically controllable filter arrangement comprising said circuits
JPH04211508A (ja) * 1990-06-15 1992-08-03 Toshiba Corp 積分回路
US5124593A (en) * 1990-09-26 1992-06-23 National Semiconductor Corporation Continuous-time filter tuning circuit and method

Also Published As

Publication number Publication date
EP0579876B1 (en) 1998-09-02
US5440264A (en) 1995-08-08
DE69226862D1 (de) 1998-10-08
JPH06164312A (ja) 1994-06-10
JP3316038B2 (ja) 2002-08-19
DE69226862T2 (de) 1999-01-21
FI933310A (fi) 1994-01-25
ES2123538T3 (es) 1999-01-16
EP0579876A1 (en) 1994-01-26
FI108585B (fi) 2002-02-15

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