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 correspondant

Info

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
Application number
FR0509304A
Other languages
English (en)
Other versions
FR2890802A1 (fr
Inventor
Fabien Pousset
Frederic Rivoirard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STMicroelectronics SA
Original Assignee
STMicroelectronics SA
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 STMicroelectronics SA filed Critical STMicroelectronics SA
Priority to FR0509304A priority Critical patent/FR2890802B1/fr
Priority to US11/530,215 priority patent/US7542737B2/en
Publication of FR2890802A1 publication Critical patent/FR2890802A1/fr
Application granted granted Critical
Publication of FR2890802B1 publication Critical patent/FR2890802B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Amplifiers (AREA)
FR0509304A 2005-09-13 2005-09-13 Procede de reduction du niveau d'intermodulation d'ordre 2 d'un transconducteur, et transconducteur correspondant Active FR2890802B1 (fr)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
FR2890802A1 (fr) 2007-03-16
US7542737B2 (en) 2009-06-02
US20070082631A1 (en) 2007-04-12

Similar Documents

Publication Publication Date Title
FR2885711B1 (fr) Procede et materiel modulaire et aleatoire pour la reduction polynomiale
ITMI20061433A1 (it) Metodo per il funzionamento di una turbiona eolica
FR16C1003I2 (fr) Agent oleogelifiant contenant du triterpene, oleogel contenant du triterpene et procede de fabrication d'un agent oleogelifiant contenant du triterpene
FR2905496B1 (fr) Procede de simulation en temps reel du comportement physique d'un pneu, et application
ZA200709972B (en) Method for making chlorohydrin in corrosion-resistant equipment
GB0511891D0 (en) Monitoring and managing farms
EP1659414A4 (fr) Procede d"appreciation de deterioration de condensateur
FR2883206B1 (fr) Procede de la fabrication d'un raccord de joint et raccord de joint
PL1844483T3 (pl) Elektroda superkondensatora o dużej zawartości materiałów i sposób jej otrzymywania przez wytłaczanie
FR2898486B1 (fr) Plaque implantable et son procede de fabrication
FR2903794B1 (fr) Procede de modelisation de l'activite de commutation d'un circuit numerique
SG116562A1 (en) Removing method of tube.
DE602005004660D1 (de) Überwachungssystem und -verfahren
FR2890802B1 (fr) Procede de reduction du niveau d'intermodulation d'ordre 2 d'un transconducteur, et transconducteur correspondant
FR2867253B1 (fr) Raccord de jonction amovible et procede de raccordement correspondant
FR2899581B1 (fr) Procede d'atomisation du ioxilan
EP1854779A4 (fr) Intermédiaire de synthèse optiquement actif d'un composé activant les ppar et méthode de synthèse dudit intermédiaire
FR2873135B1 (fr) Unite mobile de vidange et de pre-traitement d'eaux usees issues notamment d'assainissement non collectif, et procede correspondant
FR2868080B1 (fr) Procede d'amelioration des plantes
GB0607031D0 (en) Monitoring method
FR2890229B1 (fr) Procede de formation d'un condensateur variable
FR2841717B1 (fr) Procede de saisie de messages
FR2879108B1 (fr) Procede de fabrication d'un extenseur et extenseur obtenu
EP1884509A4 (fr) 3-methylcyclopentadecanone optiquement active et procede de fabrication d'un de ses intermediaires
GB0511440D0 (en) Method of monitoring the presence of micro-organisms at a plurality of locations of an establishment

Legal Events

Date Code Title Description
PLFP Fee payment

Year of fee payment: 12

PLFP Fee payment

Year of fee payment: 13