KR20000065251A - 디지털 씨엠오에스 프로세스에서 시간적으로 연속적으로 필터링하는 방법 및 장치 - Google Patents
디지털 씨엠오에스 프로세스에서 시간적으로 연속적으로 필터링하는 방법 및 장치Info
- Publication number
- KR20000065251A KR20000065251A KR1019980710778A KR19980710778A KR20000065251A KR 20000065251 A KR20000065251 A KR 20000065251A KR 1019980710778 A KR1019980710778 A KR 1019980710778A KR 19980710778 A KR19980710778 A KR 19980710778A KR 20000065251 A KR20000065251 A KR 20000065251A
- Authority
- KR
- South Korea
- Prior art keywords
- current
- digital
- capacitance
- continuous time
- capacitor
- 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.)
- Ceased
Links
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000008569 process Effects 0.000 title claims abstract description 16
- 238000001914 filtration Methods 0.000 title claims abstract description 9
- 239000003990 capacitor Substances 0.000 claims abstract description 21
- 210000003027 ear inner Anatomy 0.000 claims 2
- 238000007796 conventional method Methods 0.000 abstract description 2
- 230000008859 change Effects 0.000 description 9
- 238000013461 design Methods 0.000 description 4
- 238000004088 simulation Methods 0.000 description 4
- 235000013599 spices Nutrition 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003071 parasitic effect Effects 0.000 description 2
- 241000256683 Peregrinus Species 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/34—DC amplifiers in which all stages are DC-coupled
- H03F3/343—DC amplifiers in which all stages are DC-coupled with semiconductor devices only
- H03F3/345—DC amplifiers in which all stages are DC-coupled with semiconductor devices only with field-effect devices
-
- 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
- H03H11/0427—Filters using a single transconductance amplifier; Filters derived from a single transconductor filter, e.g. by element substitution, cascading, parallel connection
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/331—Sigma delta modulation being used in an amplifying circuit
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Networks Using Active Elements (AREA)
- Amplifiers (AREA)
Abstract
Description
Claims (4)
- 전류 미로를 사용하여 디지털 CMOS 프로세스의 연속적인 시간 필터를 실현하여 폴 주파수는 MOS 트렌지스터의 트랜스 컨덕턴스와 이 게이트에 의해 캐패시턴스의 캐패시턴스에 의해 결정되고, 폴 주파수를 형성하는 캐패시턴스는 오프 칩 캐패시터를 포함하는 형태를 취할 수 있는 것을 특징으로 하는 디지털 CMOSS 프로세스에서 연속적인 시간 필터링을 하는 방법.
- 전류 미로를 이용하여 디지털 CMOS 프로세스에서 연속적인 시간 필터를 실현하고 MOS 트랜지스터(6)의 트랜스 컨덕턴스와 게이트에 의한 캐패시터(8)의 캐패시턴스에 의해 폴 주파수를 결정하고, 폴 주파수를 형성하는 캐패시턴스는 오프 칩 캐패시터를 포함하는 어느 형태를 취할 수 있는 것을 특징으로 하는 디지털 CMOS 프로세스에서 연속적인 시간 필터링을 하는 장치.
- 제2항에 있어서, 트랜지스터(M0 (6), M1 (7) 및 게이트 케페시터 또는 오프 칩 캐패시터(C0(8))를 구성하는 전류 미로는 폴 주파수를 결정하도록 이용되는 것을 특징으로 하는 장치.
- 제2항에 있어서, 2개 이상의 전류 미로를 케스케이드하도록 마련되어 고차 필터를 실현하고, p-형("2") 전류 미로는 전력 감쇠를 보호하기위해 교번하게 마련된 것을 특징으로 하는 장치.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9602824A SE508697C2 (sv) | 1996-07-19 | 1996-07-19 | Förfarande och anordning för tidskontinuerlig filtrering i digital CMOS-process |
SE9602824-6 | 1996-07-19 | ||
PCT/SE1997/001169 WO1998004038A1 (en) | 1996-07-19 | 1997-06-27 | A method and device for continuous-time filtering in digital cmos process |
Publications (1)
Publication Number | Publication Date |
---|---|
KR20000065251A true KR20000065251A (ko) | 2000-11-06 |
Family
ID=20403437
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019980710778A Ceased KR20000065251A (ko) | 1996-07-19 | 1997-06-27 | 디지털 씨엠오에스 프로세스에서 시간적으로 연속적으로 필터링하는 방법 및 장치 |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0913029A1 (ko) |
JP (1) | JP2000514980A (ko) |
KR (1) | KR20000065251A (ko) |
CN (1) | CN1108658C (ko) |
AU (1) | AU3563797A (ko) |
CA (1) | CA2260915A1 (ko) |
SE (1) | SE508697C2 (ko) |
TW (1) | TW349264B (ko) |
WO (1) | WO1998004038A1 (ko) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011004512A1 (ja) * | 2009-07-08 | 2011-01-13 | パナソニック株式会社 | フィルタ回路及びこれを備えた光ディスク装置 |
US8502597B2 (en) | 2009-10-21 | 2013-08-06 | Qualcomm, Incorporated | Low-pass filter design |
US20140010783A1 (en) | 2012-07-06 | 2014-01-09 | Hoffmann-La Roche Inc. | Antiviral compounds |
WO2014114573A1 (en) | 2013-01-23 | 2014-07-31 | F. Hoffmann-La Roche Ag | Antiviral triazole derivatives |
BR112015021429A2 (pt) | 2013-03-05 | 2017-07-18 | Hoffmann La Roche | compostos antivirais |
CN104679095A (zh) * | 2015-02-15 | 2015-06-03 | 格科微电子(上海)有限公司 | 电流源及其阵列、读出电路及其控制方法、放大电路 |
US11296678B1 (en) * | 2020-12-29 | 2022-04-05 | Qualcomm Incorporated | Complementary current-mode biquad with high linearity |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4839542A (en) * | 1984-08-21 | 1989-06-13 | General Datacomm Industries, Inc. | Active transconductance filter device |
US4686487A (en) * | 1986-07-28 | 1987-08-11 | Commodore Business Machines, Inc. | Current mirror amplifier |
EP0600141B1 (en) * | 1992-10-30 | 1997-03-05 | SGS-THOMSON MICROELECTRONICS S.p.A. | Transconductor stage |
KR950704855A (ko) * | 1993-09-02 | 1995-11-20 | 존 엠. 클락 3세 | 능동 임피던스 종단 회로(active impedance termination) |
-
1996
- 1996-07-19 SE SE9602824A patent/SE508697C2/sv not_active IP Right Cessation
-
1997
- 1997-06-16 TW TW086108310A patent/TW349264B/zh not_active IP Right Cessation
- 1997-06-27 AU AU35637/97A patent/AU3563797A/en not_active Abandoned
- 1997-06-27 EP EP97932096A patent/EP0913029A1/en not_active Withdrawn
- 1997-06-27 WO PCT/SE1997/001169 patent/WO1998004038A1/en not_active Application Discontinuation
- 1997-06-27 KR KR1019980710778A patent/KR20000065251A/ko not_active Ceased
- 1997-06-27 CN CN97196552A patent/CN1108658C/zh not_active Expired - Fee Related
- 1997-06-27 CA CA002260915A patent/CA2260915A1/en not_active Abandoned
- 1997-06-27 JP JP10506853A patent/JP2000514980A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
CN1108658C (zh) | 2003-05-14 |
CN1225759A (zh) | 1999-08-11 |
SE9602824L (sv) | 1998-01-20 |
TW349264B (en) | 1999-01-01 |
AU3563797A (en) | 1998-02-10 |
CA2260915A1 (en) | 1998-01-29 |
JP2000514980A (ja) | 2000-11-07 |
SE508697C2 (sv) | 1998-10-26 |
EP0913029A1 (en) | 1999-05-06 |
SE9602824D0 (sv) | 1996-07-19 |
HK1021595A1 (en) | 2000-06-16 |
WO1998004038A1 (en) | 1998-01-29 |
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Legal Events
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Patent event date: 19981229 Patent event code: PA01051R01D Comment text: International Patent Application |
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Patent event code: PA02012R01D Patent event date: 20020625 Comment text: Request for Examination of Application |
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Comment text: Notification of reason for refusal Patent event date: 20040218 Patent event code: PE09021S01D |
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PE0601 | Decision on rejection of patent |
Patent event date: 20040429 Comment text: Decision to Refuse Application Patent event code: PE06012S01D Patent event date: 20040218 Comment text: Notification of reason for refusal Patent event code: PE06011S01I |