DE69426627T2 - Rauscharme oszillatoren und filter mit frequenznachsteuerung - Google Patents
Rauscharme oszillatoren und filter mit frequenznachsteuerungInfo
- Publication number
- DE69426627T2 DE69426627T2 DE69426627T DE69426627T DE69426627T2 DE 69426627 T2 DE69426627 T2 DE 69426627T2 DE 69426627 T DE69426627 T DE 69426627T DE 69426627 T DE69426627 T DE 69426627T DE 69426627 T2 DE69426627 T2 DE 69426627T2
- Authority
- DE
- Germany
- Prior art keywords
- filters
- low
- frequency adjustment
- noise oscillators
- oscillators
- 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
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
- H03H11/40—Impedance converters
- H03H11/42—Gyrators
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/20—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G1/00—Details of arrangements for controlling amplification
- H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
- H03G1/0017—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid state elements of the amplifier
- H03G1/0023—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid state elements of the amplifier in emitter-coupled or cascode amplifiers
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/070,828 US5371475A (en) | 1993-06-03 | 1993-06-03 | Low noise oscillators and tracking filters |
PCT/CA1994/000237 WO1994029947A1 (en) | 1993-06-03 | 1994-05-04 | Low noise oscillators and tracking filters |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69426627D1 DE69426627D1 (de) | 2001-03-01 |
DE69426627T2 true DE69426627T2 (de) | 2001-05-10 |
Family
ID=22097625
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69426627T Expired - Fee Related DE69426627T2 (de) | 1993-06-03 | 1994-05-04 | Rauscharme oszillatoren und filter mit frequenznachsteuerung |
Country Status (6)
Country | Link |
---|---|
US (1) | US5371475A (de) |
EP (1) | EP0705497B1 (de) |
JP (1) | JP3072386B2 (de) |
CA (1) | CA2162469C (de) |
DE (1) | DE69426627T2 (de) |
WO (1) | WO1994029947A1 (de) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5729230A (en) * | 1996-01-17 | 1998-03-17 | Hughes Aircraft Company | Delta-Sigma Δ-Σ modulator having a dynamically tunable continuous time Gm-C architecture |
US5726600A (en) * | 1996-01-17 | 1998-03-10 | Hughes Aircraft Company | NPN bipolar circuit topology for a tunable transconductance cell and positive current source |
US5936468A (en) * | 1996-03-05 | 1999-08-10 | U.S. Philips Corporation | Operational amplifier having two differential amplifiers |
US5635880A (en) * | 1996-03-14 | 1997-06-03 | Northern Telecom Limited | CMOS microwave multiphase voltage controlled oscillator |
DE69708249T2 (de) * | 1996-05-09 | 2002-06-27 | Koninkl Philips Electronics Nv | Degenerierte differenzverstärkeranordnung mit steuerbarer transkonduktanz |
US5734299A (en) * | 1996-07-25 | 1998-03-31 | Nortel Networks Corp | Microwave VCO having reduced supply voltage |
GB2335810B (en) * | 1998-03-24 | 2001-12-12 | Ericsson Telefon Ab L M | Demodulator circuits |
US6025765A (en) * | 1998-04-08 | 2000-02-15 | Nortel Networks Corporation | Gyrator with loop amplifiers connected to inductive elements |
US6194972B1 (en) | 1999-02-04 | 2001-02-27 | Nortel Networks Limited | Gyrator with loop amplifiers connected to inductive elements |
US6011437A (en) * | 1998-05-04 | 2000-01-04 | Marvell Technology Group, Ltd. | High precision, high bandwidth variable gain amplifier and method |
US6525609B1 (en) * | 1998-11-12 | 2003-02-25 | Broadcom Corporation | Large gain range, high linearity, low noise MOS VGA |
US6184747B1 (en) * | 1999-05-13 | 2001-02-06 | Honeywell International Inc. | Differential filter with gyrator |
US6429733B1 (en) * | 1999-05-13 | 2002-08-06 | Honeywell International Inc. | Filter with controlled offsets for active filter selectivity and DC offset control |
TW488138B (en) * | 1999-06-30 | 2002-05-21 | Texas Instruments Inc | ISI-rejecting differential receiver |
GB2352102B (en) * | 1999-07-16 | 2004-06-16 | Ericsson Telefon Ab L M | Integrated circuit |
US6356143B2 (en) * | 1999-11-01 | 2002-03-12 | Intreon Corporation | Method and apparatus for filtering radio frequency signals |
SE0003510D0 (sv) * | 2000-09-29 | 2000-09-29 | Spirea Ab | Voltage controlled oscillator |
HU0100884D0 (en) * | 2001-02-23 | 2001-04-28 | Integration Hungary Kft | Low phase noise integrated vco |
US6570447B2 (en) * | 2001-05-25 | 2003-05-27 | Infineon Technologies Ag | Programmable logarithmic gain adjustment for open-loop amplifiers |
US6650195B1 (en) | 2001-07-30 | 2003-11-18 | Xilinx, Inc. | Oscillator with differential tunable tank circuit |
GB0121216D0 (en) * | 2001-09-01 | 2001-10-24 | Zarlink Semiconductor Ltd | "Radio frequency amplifier and television tuner" |
GB2384927A (en) * | 2002-02-05 | 2003-08-06 | Zarlink Semiconductor Ltd | Voltage controlled oscillators |
US7298195B2 (en) * | 2005-03-31 | 2007-11-20 | Agere Systems Inc. | Methods and apparatus for improved phase switching and linearity in an analog phase interpolator |
KR101167454B1 (ko) * | 2011-03-28 | 2012-07-26 | 숭실대학교산학협력단 | 차동 구조를 이용한 전력 증폭기 |
US20150381118A1 (en) * | 2014-06-27 | 2015-12-31 | Lsi Corporation | Eliminating systematic imbalances and reducing circuit parameter variations in high gain amplifiers |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4344044A (en) * | 1980-04-23 | 1982-08-10 | Rca Corporation | Gain-controlled amplifier utilizing variable emitter degeneration and collector load impedance |
US4460872A (en) * | 1981-12-03 | 1984-07-17 | Inventab Audio Kb | Low noise differential amplifier |
DE3522416A1 (de) * | 1985-06-22 | 1987-01-02 | Standard Elektrik Lorenz Ag | Regelbare breitbandverstaerkerschaltung |
US4695806A (en) * | 1986-04-15 | 1987-09-22 | Tektronix, Inc. | Precision remotely-switched attenuator |
JPS63234612A (ja) * | 1987-03-23 | 1988-09-29 | Nippon Telegr & Teleph Corp <Ntt> | 差動増幅回路 |
GB2208340B (en) * | 1987-07-17 | 1992-01-22 | Plessey Co Plc | Electrical circuits |
US5117205A (en) * | 1990-05-01 | 1992-05-26 | U.S. Philips Corporation | Electrically controllable oscillator circuit, and electrically controllable filter arrangement comprising said circuits |
US5093634A (en) * | 1990-10-31 | 1992-03-03 | At&T Bell Laboratories | Merged current clamp in triple-input transconductor, for use in oscillator |
US5172076A (en) * | 1992-03-26 | 1992-12-15 | Northern Telecom Limited | Resonant circuit formed of two amplifiers connected in a loop and multiple resonator circuits constructed therefrom |
US5185581A (en) * | 1992-03-26 | 1993-02-09 | Northern Telecom Limited | Differential amplifier and high frequency resonant circuits constructed therefrom |
-
1993
- 1993-06-03 US US08/070,828 patent/US5371475A/en not_active Expired - Fee Related
-
1994
- 1994-05-04 JP JP7501130A patent/JP3072386B2/ja not_active Expired - Fee Related
- 1994-05-04 DE DE69426627T patent/DE69426627T2/de not_active Expired - Fee Related
- 1994-05-04 EP EP94914298A patent/EP0705497B1/de not_active Expired - Lifetime
- 1994-05-04 WO PCT/CA1994/000237 patent/WO1994029947A1/en active IP Right Grant
- 1994-05-04 CA CA002162469A patent/CA2162469C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0705497B1 (de) | 2001-01-24 |
CA2162469A1 (en) | 1994-12-22 |
EP0705497A1 (de) | 1996-04-10 |
JPH08506462A (ja) | 1996-07-09 |
DE69426627D1 (de) | 2001-03-01 |
JP3072386B2 (ja) | 2000-07-31 |
US5371475A (en) | 1994-12-06 |
WO1994029947A1 (en) | 1994-12-22 |
CA2162469C (en) | 1999-06-29 |
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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 |