IT8423632A0 - Circuito integrato a semiconduttori, in particolare filtro attivo a condensatori commutati. - Google Patents

Circuito integrato a semiconduttori, in particolare filtro attivo a condensatori commutati.

Info

Publication number
IT8423632A0
IT8423632A0 IT8423632A IT2363284A IT8423632A0 IT 8423632 A0 IT8423632 A0 IT 8423632A0 IT 8423632 A IT8423632 A IT 8423632A IT 2363284 A IT2363284 A IT 2363284A IT 8423632 A0 IT8423632 A0 IT 8423632A0
Authority
IT
Italy
Prior art keywords
integrated circuit
semiconductor integrated
active filter
particular active
switched capacitors
Prior art date
Application number
IT8423632A
Other languages
English (en)
Other versions
IT1177241B (it
IT8423632A1 (it
Inventor
Masashi Tamakoshi
Toshiro Suzuki
Hiroshi Takatori
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of IT8423632A0 publication Critical patent/IT8423632A0/it
Publication of IT8423632A1 publication Critical patent/IT8423632A1/it
Application granted granted Critical
Publication of IT1177241B publication Critical patent/IT1177241B/it

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H19/00—Networks using time-varying elements, e.g. N-path filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H19/00—Networks using time-varying elements, e.g. N-path filters
    • H03H19/004—Switched capacitor networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Networks Using Active Elements (AREA)
IT23632/84A 1983-11-18 1984-11-16 Circuito integrato a semiconduttori, in particolare filtro attivo a condesatori commutati IT1177241B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58216144A JPH0793553B2 (ja) 1983-11-18 1983-11-18 スイッチド・キャパシタ・フィルタ

Publications (3)

Publication Number Publication Date
IT8423632A0 true IT8423632A0 (it) 1984-11-16
IT8423632A1 IT8423632A1 (it) 1986-05-16
IT1177241B IT1177241B (it) 1987-08-26

Family

ID=16683960

Family Applications (1)

Application Number Title Priority Date Filing Date
IT23632/84A IT1177241B (it) 1983-11-18 1984-11-16 Circuito integrato a semiconduttori, in particolare filtro attivo a condesatori commutati

Country Status (7)

Country Link
US (2) US4769612A (it)
JP (1) JPH0793553B2 (it)
KR (1) KR930007299B1 (it)
DE (1) DE3441476C2 (it)
FR (1) FR2555377A1 (it)
GB (1) GB2149990A (it)
IT (1) IT1177241B (it)

Families Citing this family (69)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1233890A (en) * 1985-05-27 1988-03-08 Peter Gillingham Decimating filter
FR2619974B1 (fr) * 1987-08-26 1991-10-18 France Etat Quadripole de filtrage a capacites commutees pour lineariser la reponse phase/frequence dudit filtre
USRE35494E (en) * 1987-12-22 1997-04-22 Sgs-Thomson Microelectronics, S.R.L. Integrated active low-pass filter of the first order
US4948992A (en) * 1988-10-31 1990-08-14 International Business Machines Corporation Static method to negate offset voltages in CMOS operational amplifiers
US4988952B1 (en) * 1989-06-06 1995-10-31 Linear Techn Inc High q switched capacitor filter having internal thin-film resistors
US5168461A (en) * 1989-08-21 1992-12-01 Industrial Technology Research Institute Switched capacitor differentiators and switched capacitor differentiator-based filters
JP3337241B2 (ja) * 1991-07-26 2002-10-21 テキサス インスツルメンツ インコーポレイテツド 改良型多重チャンネル・センサーインターフェース回路とその製造方法
US5495192A (en) * 1992-02-10 1996-02-27 Yozan Inc. Sample hold circuit
US5341050A (en) * 1992-03-20 1994-08-23 Hughes Aircraft Company Switched capacitor amplifier circuit operating without serially coupled amplifiers
GB9302881D0 (en) * 1993-02-12 1993-03-31 Pilkington Micro Electronics Programmable switched capacitor circuit
JP3260197B2 (ja) * 1993-02-16 2002-02-25 株式会社鷹山 加算回路
US5459417A (en) * 1993-06-28 1995-10-17 Alliedsignal Inc. Apparatus for detecting DC content of an AC waveform
US5391999A (en) * 1993-12-02 1995-02-21 Motorola Inc. Glitchless switched-capacitor biquad low pass filter
DE4411693A1 (de) * 1994-04-06 1995-10-12 Killat Dirk Dipl Ing Schaltung und Verfahren zur Tiefpaßfilterung bei Mehrfachabtastung von Signalen
US5796883A (en) * 1995-09-04 1998-08-18 Nec Corporation Optical integrated circuit and method for fabricating the same
US6185264B1 (en) * 1997-12-17 2001-02-06 Ove Kris Gashus Apparatus and method for frequency shift keying
CA2229737A1 (en) * 1998-02-18 1999-08-18 Philsar Electronics Inc. Analog to digital converter for radio applications
US6057713A (en) * 1998-03-12 2000-05-02 Motorola, Inc. Method and apparatus for performing voltage sampling
US7515896B1 (en) 1998-10-21 2009-04-07 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships
US6091940A (en) 1998-10-21 2000-07-18 Parkervision, Inc. Method and system for frequency up-conversion
US6694128B1 (en) 1998-08-18 2004-02-17 Parkervision, Inc. Frequency synthesizer using universal frequency translation technology
US6061551A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for down-converting electromagnetic signals
US6813485B2 (en) 1998-10-21 2004-11-02 Parkervision, Inc. Method and system for down-converting and up-converting an electromagnetic signal, and transforms for same
US7236754B2 (en) 1999-08-23 2007-06-26 Parkervision, Inc. Method and system for frequency up-conversion
US6560301B1 (en) 1998-10-21 2003-05-06 Parkervision, Inc. Integrated frequency translation and selectivity with a variety of filter embodiments
US6542722B1 (en) 1998-10-21 2003-04-01 Parkervision, Inc. Method and system for frequency up-conversion with variety of transmitter configurations
US7027786B1 (en) 1998-10-21 2006-04-11 Parkervision, Inc. Carrier and clock recovery using universal frequency translation
US6370371B1 (en) 1998-10-21 2002-04-09 Parkervision, Inc. Applications of universal frequency translation
US6049706A (en) 1998-10-21 2000-04-11 Parkervision, Inc. Integrated frequency translation and selectivity
US7295826B1 (en) 1998-10-21 2007-11-13 Parkervision, Inc. Integrated frequency translation and selectivity with gain control functionality, and applications thereof
US7039372B1 (en) 1998-10-21 2006-05-02 Parkervision, Inc. Method and system for frequency up-conversion with modulation embodiments
US6061555A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for ensuring reception of a communications signal
DE69920273T2 (de) * 1998-11-12 2005-09-22 Broadcom Corp., Irvine Integrierte tunerarchitektur
US7006805B1 (en) 1999-01-22 2006-02-28 Parker Vision, Inc. Aliasing communication system with multi-mode and multi-band functionality and embodiments thereof, such as the family radio service
US6704549B1 (en) 1999-03-03 2004-03-09 Parkvision, Inc. Multi-mode, multi-band communication system
US6704558B1 (en) 1999-01-22 2004-03-09 Parkervision, Inc. Image-reject down-converter and embodiments thereof, such as the family radio service
US6879817B1 (en) 1999-04-16 2005-04-12 Parkervision, Inc. DC offset, re-radiation, and I/Q solutions using universal frequency translation technology
US6853690B1 (en) 1999-04-16 2005-02-08 Parkervision, Inc. Method, system and apparatus for balanced frequency up-conversion of a baseband signal and 4-phase receiver and transceiver embodiments
US6873836B1 (en) 1999-03-03 2005-03-29 Parkervision, Inc. Universal platform module and methods and apparatuses relating thereto enabled by universal frequency translation technology
US7110435B1 (en) 1999-03-15 2006-09-19 Parkervision, Inc. Spread spectrum applications of universal frequency translation
US7110444B1 (en) 1999-08-04 2006-09-19 Parkervision, Inc. Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations
US7693230B2 (en) 1999-04-16 2010-04-06 Parkervision, Inc. Apparatus and method of differential IQ frequency up-conversion
US7065162B1 (en) 1999-04-16 2006-06-20 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same
US7072390B1 (en) 1999-08-04 2006-07-04 Parkervision, Inc. Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments
US7054296B1 (en) 1999-08-04 2006-05-30 Parkervision, Inc. Wireless local area network (WLAN) technology and applications including techniques of universal frequency translation
US8295406B1 (en) 1999-08-04 2012-10-23 Parkervision, Inc. Universal platform module for a plurality of communication protocols
US7082171B1 (en) 1999-11-24 2006-07-25 Parkervision, Inc. Phase shifting applications of universal frequency translation
US6963734B2 (en) 1999-12-22 2005-11-08 Parkervision, Inc. Differential frequency down-conversion using techniques of universal frequency translation technology
US7292835B2 (en) 2000-01-28 2007-11-06 Parkervision, Inc. Wireless and wired cable modem applications of universal frequency translation technology
US7010286B2 (en) 2000-04-14 2006-03-07 Parkervision, Inc. Apparatus, system, and method for down-converting and up-converting electromagnetic signals
US7554508B2 (en) 2000-06-09 2009-06-30 Parker Vision, Inc. Phased array antenna applications on universal frequency translation
US7010559B2 (en) 2000-11-14 2006-03-07 Parkervision, Inc. Method and apparatus for a parallel correlator and applications thereof
US7454453B2 (en) 2000-11-14 2008-11-18 Parkervision, Inc. Methods, systems, and computer program products for parallel correlation and applications thereof
JP4861566B2 (ja) * 2001-05-08 2012-01-25 富士通セミコンダクター株式会社 スイッチド・キャパシタ・フィルタ回路
US7085335B2 (en) 2001-11-09 2006-08-01 Parkervision, Inc. Method and apparatus for reducing DC offsets in a communication system
US7072427B2 (en) 2001-11-09 2006-07-04 Parkervision, Inc. Method and apparatus for reducing DC offsets in a communication system
US6975848B2 (en) 2002-06-04 2005-12-13 Parkervision, Inc. Method and apparatus for DC offset removal in a radio frequency communication channel
US7321640B2 (en) 2002-06-07 2008-01-22 Parkervision, Inc. Active polyphase inverter filter for quadrature signal generation
US7379883B2 (en) 2002-07-18 2008-05-27 Parkervision, Inc. Networking methods and systems
US7460584B2 (en) 2002-07-18 2008-12-02 Parkervision, Inc. Networking methods and systems
US8294495B2 (en) * 2005-07-01 2012-10-23 Maxim Integrated Products, Inc. Constant slope ramp circuits for sampled-data circuits
US7737732B2 (en) * 2005-07-01 2010-06-15 Cambridge Analog Technologies, Inc. Constant slope ramp circuits for sample-data circuits
US7656226B2 (en) * 2006-03-31 2010-02-02 Intel Corporation Switched capacitor equalizer with offset voltage cancelling
US20110043286A1 (en) * 2009-08-18 2011-02-24 Gerald Youngblood Direct conversion receiver
US8416014B2 (en) * 2010-03-12 2013-04-09 Allegro Microsystems, Inc. Switched capacitor notch filter with fast response time
US8638165B2 (en) * 2011-06-06 2014-01-28 Qualcomm Incorporated Switched-capacitor DC blocking amplifier
US9024684B2 (en) * 2013-03-15 2015-05-05 Qualcomm Incorporated Area-efficient PLL with a low-noise low-power loop filter
JP6043867B2 (ja) * 2013-03-28 2016-12-14 株式会社日立製作所 超音波撮像装置
CN104348481B (zh) * 2013-07-31 2017-06-06 上海华虹宏力半导体制造有限公司 用于锁相环的有源滤波器

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4375625A (en) * 1981-05-21 1983-03-01 Gte Automatic Electric Laboratories, Inc. Switched-capacitor source resistor simulation circuit
JPS5839109A (ja) * 1981-09-01 1983-03-07 Toshiba Corp 低域通過フィルタ
JPS60260222A (ja) * 1984-06-07 1985-12-23 Nec Corp 適応可変スイツチトキヤパシタフイルタ

Also Published As

Publication number Publication date
DE3441476A1 (de) 1985-05-30
GB2149990A (en) 1985-06-19
JPS60109321A (ja) 1985-06-14
DE3441476C2 (de) 1996-01-04
FR2555377A1 (fr) 1985-05-24
GB8421200D0 (en) 1984-09-26
KR930007299B1 (ko) 1993-08-04
JPH0793553B2 (ja) 1995-10-09
IT1177241B (it) 1987-08-26
US4835482A (en) 1989-05-30
IT8423632A1 (it) 1986-05-16
KR850004359A (ko) 1985-07-11
US4769612A (en) 1988-09-06

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TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19941125