ATE460773T1 - Vorrichtung und verfahren zum abstimmen eines bandpassfilters - Google Patents

Vorrichtung und verfahren zum abstimmen eines bandpassfilters

Info

Publication number
ATE460773T1
ATE460773T1 AT07008917T AT07008917T ATE460773T1 AT E460773 T1 ATE460773 T1 AT E460773T1 AT 07008917 T AT07008917 T AT 07008917T AT 07008917 T AT07008917 T AT 07008917T AT E460773 T1 ATE460773 T1 AT E460773T1
Authority
AT
Austria
Prior art keywords
pass filter
band pass
tuning
switches
transconductor
Prior art date
Application number
AT07008917T
Other languages
English (en)
Inventor
Tan Seeteck
Chu Meng
Chen Xiaozhe
Original Assignee
O2Micro 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 O2Micro Inc filed Critical O2Micro Inc
Application granted granted Critical
Publication of ATE460773T1 publication Critical patent/ATE460773T1/de

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
    • 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
    • H03H11/0444—Simulation of ladder 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
    • H03H2011/0494—Complex filters

Landscapes

  • Networks Using Active Elements (AREA)
  • Filters And Equalizers (AREA)
  • Superheterodyne Receivers (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
AT07008917T 2006-11-17 2007-05-03 Vorrichtung und verfahren zum abstimmen eines bandpassfilters ATE460773T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/601,079 US7463086B2 (en) 2006-11-17 2006-11-17 Apparatus and method for tuning a band pass filter

Publications (1)

Publication Number Publication Date
ATE460773T1 true ATE460773T1 (de) 2010-03-15

Family

ID=39086152

Family Applications (1)

Application Number Title Priority Date Filing Date
AT07008917T ATE460773T1 (de) 2006-11-17 2007-05-03 Vorrichtung und verfahren zum abstimmen eines bandpassfilters

Country Status (8)

Country Link
US (1) US7463086B2 (de)
EP (1) EP1923997B1 (de)
JP (1) JP2008131639A (de)
KR (1) KR100908164B1 (de)
CN (1) CN101222214A (de)
AT (1) ATE460773T1 (de)
DE (1) DE602007005201D1 (de)
TW (1) TWI379512B (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006157866A (ja) * 2004-10-27 2006-06-15 Matsushita Electric Ind Co Ltd 複素フィルタ回路および受信回路
US20070140391A1 (en) * 2005-12-20 2007-06-21 Jianping Pan Rf complex bandpass-notch filter for rf receiver and tv tuner
US7659845B2 (en) * 2008-06-20 2010-02-09 Infineon Technologies Ag Analog-to-digital converter with capacitor array
JP2010016591A (ja) * 2008-07-03 2010-01-21 Renesas Technology Corp 半導体集積回路
TWI505635B (zh) * 2008-10-14 2015-10-21 System General Corp Low-pass filter
JP2010109437A (ja) * 2008-10-28 2010-05-13 Fujitsu Microelectronics Ltd フィルタ回路及びフィルタ回路の補正方法
WO2011022355A1 (en) * 2009-08-19 2011-02-24 Ikanos Technology Ltd. Adaptive integrated hybrid with complex adaptation for digital subscriber line systems
US20110072064A1 (en) * 2009-09-18 2011-03-24 Ho-Cheng Wei Reduce interference for kvm system
CN102420583A (zh) * 2011-12-02 2012-04-18 华中科技大学 一种基于可变跨导运算放大器的射频滤波器
JP2013236204A (ja) * 2012-05-08 2013-11-21 Seiko Epson Corp 回路装置及び電子機器
US8760222B2 (en) * 2012-09-24 2014-06-24 Motorola Mobility Llc Method and apparatus for controlling or managing bandwidth of a filter circuit within a system having two integrated circuits
CN103151996B (zh) * 2013-03-01 2016-03-16 东南大学 一种可重构滤波器
CN103227620B (zh) * 2013-05-09 2016-06-22 重庆西南集成电路设计有限责任公司 可重配置的Gm_C滤波器电路
FR3013537A1 (fr) * 2013-11-21 2015-05-22 St Microelectronics Tours Sas Commande de condensateur bst
CN107733390A (zh) * 2017-10-19 2018-02-23 成都旭思特科技有限公司 精确调谐的滤波器调谐方法
CN108923768A (zh) * 2018-07-02 2018-11-30 北京无线电测量研究所 数控复数带通滤波器芯片
CN114039604B (zh) * 2021-11-05 2024-06-21 浙江大学 一种适应性噪声成形逐次逼近型数据转换器

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0579876B1 (de) 1992-07-24 1998-09-02 Alcatel Frequenzabstimmungssystem für ein Paar C-Transkonduktanzoperationsverstärker
US5281931A (en) 1992-10-08 1994-01-25 International Business Machines Corporation On-chip self-tuning filter system
US5625317A (en) * 1994-08-08 1997-04-29 Texas Instruments Incorporated Tuning method for integrated continuous-time filters
US5650950A (en) 1995-05-31 1997-07-22 Texas Instruments Incorporated Apparatus and method for accurately establishing a cut-off frequency in an electronic filter
US6194947B1 (en) 1998-07-24 2001-02-27 Global Communication Technology Inc. VCO-mixer structure
US6985710B1 (en) * 2001-09-17 2006-01-10 Xceive Corporation Image rejection mixer for broadband signal reception
US6646498B2 (en) * 2001-12-18 2003-11-11 Texas Instruments Incorporated High frequency tunable filter
DE10308527B4 (de) * 2003-02-27 2012-05-31 Lantiq Deutschland Gmbh Abstimmschaltung und Verfahren zur Abstimmung einer Filterstufe
US7135915B2 (en) * 2004-01-13 2006-11-14 Agere Systems Inc. Tuning filters having transconductor cells
JP2005204204A (ja) 2004-01-19 2005-07-28 Nec Electronics Corp 周波数設定回路
US7164311B2 (en) * 2004-09-30 2007-01-16 Silicon Laboratories Inc. Method and apparatus for tuning GMC filter
FR2892872B1 (fr) * 2005-11-02 2008-01-04 Atmel Corp Filtre passe-bande complexe

Also Published As

Publication number Publication date
JP2008131639A (ja) 2008-06-05
DE602007005201D1 (de) 2010-04-22
TW200832897A (en) 2008-08-01
KR100908164B1 (ko) 2009-07-16
EP1923997A1 (de) 2008-05-21
KR20080044753A (ko) 2008-05-21
US7463086B2 (en) 2008-12-09
TWI379512B (en) 2012-12-11
US20080139160A1 (en) 2008-06-12
CN101222214A (zh) 2008-07-16
EP1923997B1 (de) 2010-03-10

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