DE69611967T2 - Gefaltetes aktives Filter - Google Patents

Gefaltetes aktives Filter

Info

Publication number
DE69611967T2
DE69611967T2 DE69611967T DE69611967T DE69611967T2 DE 69611967 T2 DE69611967 T2 DE 69611967T2 DE 69611967 T DE69611967 T DE 69611967T DE 69611967 T DE69611967 T DE 69611967T DE 69611967 T2 DE69611967 T2 DE 69611967T2
Authority
DE
Germany
Prior art keywords
transistors
active filter
collector
base electrodes
stages
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
DE69611967T
Other languages
English (en)
Other versions
DE69611967D1 (de
Inventor
Nicholas Mihailovits
Trevor Peter Beatson
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.)
LSI Corp
Original Assignee
Mitel Semiconductor 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
Priority claimed from GBGB9522366.5A external-priority patent/GB9522366D0/en
Priority claimed from GBGB9522365.7A external-priority patent/GB9522365D0/en
Application filed by Mitel Semiconductor Ltd filed Critical Mitel Semiconductor Ltd
Publication of DE69611967D1 publication Critical patent/DE69611967D1/de
Application granted granted Critical
Publication of DE69611967T2 publication Critical patent/DE69611967T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H03H11/12—Frequency selective two-port networks using amplifiers with feedback
    • H03H11/1213—Frequency selective two-port networks using amplifiers with feedback using transistor amplifiers
DE69611967T 1995-11-01 1996-10-24 Gefaltetes aktives Filter Expired - Lifetime DE69611967T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9522366.5A GB9522366D0 (en) 1995-11-01 1995-11-01 Active filter stack
GBGB9522365.7A GB9522365D0 (en) 1995-11-01 1995-11-01 Folded active filter stack

Publications (2)

Publication Number Publication Date
DE69611967D1 DE69611967D1 (de) 2001-04-12
DE69611967T2 true DE69611967T2 (de) 2001-06-21

Family

ID=26308028

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69613536T Expired - Lifetime DE69613536T2 (de) 1995-11-01 1996-10-24 Gestapeltes aktives Filter
DE69611967T Expired - Lifetime DE69611967T2 (de) 1995-11-01 1996-10-24 Gefaltetes aktives Filter

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69613536T Expired - Lifetime DE69613536T2 (de) 1995-11-01 1996-10-24 Gestapeltes aktives Filter

Country Status (6)

Country Link
US (2) US5847605A (de)
EP (2) EP0772294B1 (de)
JP (2) JPH09199988A (de)
AT (2) ATE199615T1 (de)
DE (2) DE69613536T2 (de)
ES (1) ES2154791T3 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100317176B1 (ko) * 1997-11-28 2002-01-16 니시무로 타이죠 필터회로
US6552580B2 (en) * 1999-05-24 2003-04-22 Level One Communications Inc. Bias technique for operating point control in multistage circuits
GB0027069D0 (en) 2000-11-06 2000-12-20 Lsi Logic Europ Ltd Transconductance continuous time filter circuit
JP3644387B2 (ja) * 2001-01-10 2005-04-27 ソニー株式会社 フィルタ回路
US7161442B2 (en) * 2003-01-06 2007-01-09 United Microelectronics Corp. Latch system comprising an action module to increase negative resistance
US6885245B2 (en) * 2003-04-08 2005-04-26 Via Technologies, Inc. Differential amplifier and comparator using the same
KR100618354B1 (ko) * 2005-02-04 2006-08-31 삼성전자주식회사 교차 연결된 트랜지스터를 이용하는 초광대역 필터
US7408409B2 (en) * 2006-06-27 2008-08-05 Intel Corporation Amplifier circuit with cross-coupled cascode transistors
US7733165B2 (en) * 2007-02-27 2010-06-08 Infineon Technologies Ag Circuit arrangement with interference protection
DE102010026629A1 (de) * 2010-07-09 2012-01-12 Rohde & Schwarz Gmbh & Co. Kg Linearer differentieller Verstärker mit hoher Eingangsimpedanz
US9184957B2 (en) * 2012-12-27 2015-11-10 Intel Corporation High speed receivers circuits and methods

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6501840A (de) * 1965-02-13 1966-08-15
NL6908784A (de) * 1969-06-10 1970-12-14
JPS59181807A (ja) * 1983-03-31 1984-10-16 Toshiba Corp トランジスタ増幅器
US4514704A (en) * 1983-08-26 1985-04-30 Curtis Douglas R Variable filter circuit
SE457922B (sv) * 1987-06-18 1989-02-06 Ericsson Telefon Ab L M Anordning vid aktivt filter samt anvaendning daerav
US5081423A (en) * 1988-07-28 1992-01-14 Kabushiki Kaisha Toshiba Integrator and active filter including integrator with simple phase compensation
US5225790A (en) * 1992-02-28 1993-07-06 Digital Equipment Corporation Tunable wideband active filter
US5489878A (en) * 1994-11-23 1996-02-06 Analog Devices Current-controlled quadrature oscillator based on differential gm /C cells

Also Published As

Publication number Publication date
DE69611967D1 (de) 2001-04-12
ATE199615T1 (de) 2001-03-15
DE69613536D1 (de) 2001-08-02
JPH09214286A (ja) 1997-08-15
DE69613536T2 (de) 2002-04-11
EP0772295A1 (de) 1997-05-07
US5912587A (en) 1999-06-15
ES2154791T3 (es) 2001-04-16
EP0772294A1 (de) 1997-05-07
ATE202663T1 (de) 2001-07-15
US5847605A (en) 1998-12-08
EP0772294B1 (de) 2001-03-07
JPH09199988A (ja) 1997-07-31
EP0772295B1 (de) 2001-06-27

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: LSI LOGIC CORP., MILPITAS, CALIF., US