FR2890802B1 - Procede de reduction du niveau d'intermodulation d'ordre 2 d'un transconducteur, et transconducteur correspondant - Google Patents
Procede de reduction du niveau d'intermodulation d'ordre 2 d'un transconducteur, et transconducteur correspondantInfo
- Publication number
- FR2890802B1 FR2890802B1 FR0509304A FR0509304A FR2890802B1 FR 2890802 B1 FR2890802 B1 FR 2890802B1 FR 0509304 A FR0509304 A FR 0509304A FR 0509304 A FR0509304 A FR 0509304A FR 2890802 B1 FR2890802 B1 FR 2890802B1
- Authority
- FR
- France
- Prior art keywords
- transconducer
- transconductive
- reducing
- order
- intermodulation level
- 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.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/32—Modifications of amplifiers to reduce non-linear distortion
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/32—Modifications of amplifiers to reduce non-linear distortion
- H03F1/3211—Modifications of amplifiers to reduce non-linear distortion in differential amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
- H03F3/4508—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using bipolar transistors as the active amplifying circuit
- H03F3/45085—Long tailed pairs
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45479—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection
- H03F3/45484—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection in differential amplifiers with bipolar transistors as the active amplifying circuit
- H03F3/45488—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection in differential amplifiers with bipolar transistors as the active amplifying circuit by using feedback means
- H03F3/45533—Measuring at the common emitter circuit of the differential amplifier
- H03F3/45538—Controlling the input circuit of the differential amplifier
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/30—Indexing scheme relating to single-ended push-pull [SEPP]; Phase-splitters therefor
- H03F2203/30024—Indexing scheme relating to single-ended push-pull [SEPP]; Phase-splitters therefor the SEPP bias current being controlled by a control signal from a feedback circuit
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45154—Indexing scheme relating to differential amplifiers the bias at the input of the amplifying transistors being controlled
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Amplifiers (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0509304A FR2890802B1 (fr) | 2005-09-13 | 2005-09-13 | Procede de reduction du niveau d'intermodulation d'ordre 2 d'un transconducteur, et transconducteur correspondant |
US11/530,215 US7542737B2 (en) | 2005-09-13 | 2006-09-08 | Method for reducing the 2nd order intermodulation level of a transconductor, and corresponding transconductor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0509304A FR2890802B1 (fr) | 2005-09-13 | 2005-09-13 | Procede de reduction du niveau d'intermodulation d'ordre 2 d'un transconducteur, et transconducteur correspondant |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2890802A1 FR2890802A1 (fr) | 2007-03-16 |
FR2890802B1 true FR2890802B1 (fr) | 2007-12-07 |
Family
ID=36114662
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR0509304A Active FR2890802B1 (fr) | 2005-09-13 | 2005-09-13 | Procede de reduction du niveau d'intermodulation d'ordre 2 d'un transconducteur, et transconducteur correspondant |
Country Status (2)
Country | Link |
---|---|
US (1) | US7542737B2 (fr) |
FR (1) | FR2890802B1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100824785B1 (ko) * | 2006-11-22 | 2008-04-24 | 삼성전자주식회사 | 아이피투 교정기 및 아이피투 교정방법 |
US8086207B2 (en) * | 2007-03-19 | 2011-12-27 | Qualcomm Incorporated | Linear transconductor for RF communications |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5115206A (en) * | 1990-11-08 | 1992-05-19 | North American Philips Corp., Signetics Division | Merged differential amplifier and current source |
US6023196A (en) * | 1998-08-03 | 2000-02-08 | Lucent Technologies Inc. | Bias circuit for transconductance amplifier |
US6717463B2 (en) * | 2000-11-03 | 2004-04-06 | Qualcomm Incorporated | Circuit for linearizing electronic devices |
US6922556B2 (en) * | 2002-08-30 | 2005-07-26 | Microtune (Texas), L.P. | System and method for establishing a bias current using a feedback loop |
-
2005
- 2005-09-13 FR FR0509304A patent/FR2890802B1/fr active Active
-
2006
- 2006-09-08 US US11/530,215 patent/US7542737B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US20070082631A1 (en) | 2007-04-12 |
US7542737B2 (en) | 2009-06-02 |
FR2890802A1 (fr) | 2007-03-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PLFP | Fee payment |
Year of fee payment: 12 |
|
PLFP | Fee payment |
Year of fee payment: 13 |