DE69433218D1 - Filterschaltung - Google Patents

Filterschaltung

Info

Publication number
DE69433218D1
DE69433218D1 DE69433218T DE69433218T DE69433218D1 DE 69433218 D1 DE69433218 D1 DE 69433218D1 DE 69433218 T DE69433218 T DE 69433218T DE 69433218 T DE69433218 T DE 69433218T DE 69433218 D1 DE69433218 D1 DE 69433218D1
Authority
DE
Germany
Prior art keywords
filter circuit
filter
circuit
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 - Fee Related
Application number
DE69433218T
Other languages
English (en)
Other versions
DE69433218T2 (de
Inventor
Takuji Yamamoto
Naoki Kuwata
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Application granted granted Critical
Publication of DE69433218D1 publication Critical patent/DE69433218D1/de
Publication of DE69433218T2 publication Critical patent/DE69433218T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
    • H03F3/45179—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using MOSFET transistors as the active amplifying circuit
    • H03F3/4521—Complementary long tailed pairs having parallel inputs and being supplied in parallel
    • 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
    • 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
    • H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
    • H03F3/4508—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using bipolar transistors as the active amplifying circuit
    • H03F3/45085—Long tailed pairs
    • H03F3/45089—Non-folded cascode stages
    • 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
    • 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
    • H03H11/12—Frequency selective two-port networks using amplifiers with feedback
    • H03H11/1291—Current or voltage controlled filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45018—Indexing scheme relating to differential amplifiers the differential amplifier amplifying transistors have added cross couplings
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45022—One or more added resistors to the amplifying transistors in the differential amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45024—Indexing scheme relating to differential amplifiers the differential amplifier amplifying transistors are cascode coupled transistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45034—One or more added reactive elements, capacitive or inductive elements, to the amplifying transistors in the differential amplifier

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Networks Using Active Elements (AREA)
  • Optical Communication System (AREA)
DE1994633218 1993-07-27 1994-07-26 Filterschaltung Expired - Fee Related DE69433218T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP18425693 1993-07-27
JP18425693 1993-07-27
JP1473394 1994-02-09
JP1473394 1994-02-09

Publications (2)

Publication Number Publication Date
DE69433218D1 true DE69433218D1 (de) 2003-11-06
DE69433218T2 DE69433218T2 (de) 2004-07-22

Family

ID=26350747

Family Applications (3)

Application Number Title Priority Date Filing Date
DE69426061T Expired - Fee Related DE69426061T2 (de) 1993-07-27 1994-07-26 Filterschaltung
DE1994633218 Expired - Fee Related DE69433218T2 (de) 1993-07-27 1994-07-26 Filterschaltung
DE1994633184 Expired - Fee Related DE69433184T2 (de) 1993-07-27 1994-07-26 Filterschaltung

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69426061T Expired - Fee Related DE69426061T2 (de) 1993-07-27 1994-07-26 Filterschaltung

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE1994633184 Expired - Fee Related DE69433184T2 (de) 1993-07-27 1994-07-26 Filterschaltung

Country Status (4)

Country Link
EP (3) EP0951144B1 (de)
JP (1) JP3153242B2 (de)
DE (3) DE69426061T2 (de)
WO (1) WO1995004401A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19740193C1 (de) 1997-09-12 1999-03-11 Siemens Ag Integriertes Tiefpaßfilter
DE102004017788B4 (de) 2004-04-02 2008-01-03 Atmel Germany Gmbh Oszillator mit abstimmbarer Diffusionskapazität als Schwingkreiskapazität
US7205836B2 (en) 2005-05-03 2007-04-17 M/A-Com, Inc. SiGe differential cascode amplifier with miller effect resonator
EP3930190A1 (de) * 2017-12-08 2021-12-29 Telefonaktiebolaget LM Ericsson (publ) Kombinierte mischer- und filterschaltung

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3419812A (en) * 1966-09-02 1968-12-31 Air Force Usa Bandpass amplifier
JPS4936839U (de) * 1972-07-03 1974-04-01
JPS49148838U (de) * 1973-04-23 1974-12-23
JPS5140737A (ja) * 1974-10-02 1976-04-05 Hitachi Ltd Saishoisosuiigatatokaki
JPS54135137U (de) * 1978-03-11 1979-09-19
FR2469043B1 (fr) * 1979-10-31 1986-01-24 Enertec Filtres accordes par commutation et utilisation dans un egalisateur d'enregistrement magnetique
JPS56166616A (en) * 1980-05-28 1981-12-21 Fujitsu Ltd Filter switching circuit
GB2077557A (en) * 1980-06-06 1981-12-16 Nat Res Dev Variable characteristic filters
US4513254A (en) * 1983-05-16 1985-04-23 International Business Machines Corporation Integrated circuit filter with adjustable characteristics
JPH0738556B2 (ja) * 1986-01-10 1995-04-26 株式会社日立製作所 積分回路
EP0232699B1 (de) * 1986-01-10 1993-05-26 Hitachi, Ltd. Verstärkeranordnung für ein aktives Filter
JPH0244425U (de) * 1988-09-21 1990-03-27
JPH02202212A (ja) * 1989-01-31 1990-08-10 Canon Inc 可変抵抗回路
JPH0423607A (ja) * 1990-05-18 1992-01-28 Fujitsu Ltd フィルタ回路
JPH0457979U (de) * 1990-09-26 1992-05-19
JPH04150513A (ja) * 1990-10-15 1992-05-25 Sony Corp フィルタ回路
US5130579A (en) * 1990-11-19 1992-07-14 Ericsson Ge Mobile Communications Inc. Active lowpass ripple filter
US5099155A (en) * 1991-04-22 1992-03-24 Pacific Monolithics Active element filter network
JP3080723B2 (ja) * 1991-10-17 2000-08-28 富士通株式会社 フィルタ回路及びフィルタ集積回路
JPH05140737A (ja) 1991-11-18 1993-06-08 Ricoh Co Ltd 窒化鉄磁性薄膜含有積層体とその製法
JPH06310983A (ja) * 1993-04-27 1994-11-04 Matsushita Electric Ind Co Ltd 遅延回路

Also Published As

Publication number Publication date
DE69433218T2 (de) 2004-07-22
EP0663723A4 (de) 1995-11-29
DE69426061T2 (de) 2001-05-10
EP0915565A3 (de) 2000-03-22
JP3153242B2 (ja) 2001-04-03
EP0915565B1 (de) 2003-09-24
DE69426061D1 (de) 2000-11-09
WO1995004401A1 (fr) 1995-02-09
EP0951144B1 (de) 2003-10-01
EP0663723A1 (de) 1995-07-19
EP0951144A2 (de) 1999-10-20
EP0951144A3 (de) 2000-03-22
DE69433184D1 (de) 2003-10-30
EP0915565A2 (de) 1999-05-12
EP0663723B1 (de) 2000-10-04
DE69433184T2 (de) 2004-06-03

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee