FR2717933B1 - Circuit de traitement de signaux comportant un étage d'entrée à gain variable. - Google Patents

Circuit de traitement de signaux comportant un étage d'entrée à gain variable.

Info

Publication number
FR2717933B1
FR2717933B1 FR9403541A FR9403541A FR2717933B1 FR 2717933 B1 FR2717933 B1 FR 2717933B1 FR 9403541 A FR9403541 A FR 9403541A FR 9403541 A FR9403541 A FR 9403541A FR 2717933 B1 FR2717933 B1 FR 2717933B1
Authority
FR
France
Prior art keywords
processing circuit
signal
signal processing
variable gain
input stage
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
Application number
FR9403541A
Other languages
English (en)
Other versions
FR2717933A1 (fr
Inventor
Enrique Marcela Blumenkrantz
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.)
Centre Suisse dElectronique et Microtechnique SA CSEM
Original Assignee
Centre Suisse dElectronique et Microtechnique SA CSEM
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
Priority to FR9403541A priority Critical patent/FR2717933B1/fr
Application filed by Centre Suisse dElectronique et Microtechnique SA CSEM filed Critical Centre Suisse dElectronique et Microtechnique SA CSEM
Priority to DE69417296T priority patent/DE69417296T2/de
Priority to EP94109610A priority patent/EP0631395B1/fr
Priority to CA002126525A priority patent/CA2126525C/fr
Priority to AT94109610T priority patent/ATE178171T1/de
Priority to US08/264,645 priority patent/US5541600A/en
Priority to JP16751194A priority patent/JP3530587B2/ja
Publication of FR2717933A1 publication Critical patent/FR2717933A1/fr
Application granted granted Critical
Publication of FR2717933B1 publication Critical patent/FR2717933B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/001—Digital control of analog signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K7/00—Modulating pulses with a continuously-variable modulating signal
    • H03K7/06—Frequency or rate modulation, i.e. PFM or PRM
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation
    • H03M3/458—Analogue/digital converters using delta-sigma modulation as an intermediate step
    • H03M3/478—Means for controlling the correspondence between the range of the input signal and the range of signals the converter can handle; Means for out-of-range indication
    • H03M3/488—Means for controlling the correspondence between the range of the input signal and the range of signals the converter can handle; Means for out-of-range indication using automatic control
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation
    • H03M3/50—Digital/analogue converters using delta-sigma modulation as an intermediate step
    • H03M3/51—Automatic control for modifying converter range

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Control Of Amplification And Gain Control (AREA)
FR9403541A 1993-06-28 1994-03-25 Circuit de traitement de signaux comportant un étage d'entrée à gain variable. Expired - Fee Related FR2717933B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR9403541A FR2717933B1 (fr) 1994-03-25 1994-03-25 Circuit de traitement de signaux comportant un étage d'entrée à gain variable.
EP94109610A EP0631395B1 (fr) 1993-06-28 1994-06-22 Circuit de traitement de signaux comportant un étage d'entrée à gain variable
CA002126525A CA2126525C (fr) 1993-06-28 1994-06-22 Circuit de traitement de signaux comportant un etage d'entree a gain variable
AT94109610T ATE178171T1 (de) 1993-06-28 1994-06-22 Schaltung zur verarbeitung von signalen mit einer eingangsstufe mit veränderbarer verstärkung
DE69417296T DE69417296T2 (de) 1993-06-28 1994-06-22 Schaltung zur Verarbeitung von Signalen mit einer Eingangsstufe mit veränderbarer Verstärkung
US08/264,645 US5541600A (en) 1993-06-28 1994-06-23 Signal processing circuit including a variable gain input stage
JP16751194A JP3530587B2 (ja) 1993-06-28 1994-06-28 可変利得入力ステージを備える信号処理回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9403541A FR2717933B1 (fr) 1994-03-25 1994-03-25 Circuit de traitement de signaux comportant un étage d'entrée à gain variable.

Publications (2)

Publication Number Publication Date
FR2717933A1 FR2717933A1 (fr) 1995-09-29
FR2717933B1 true FR2717933B1 (fr) 1996-07-05

Family

ID=9461437

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9403541A Expired - Fee Related FR2717933B1 (fr) 1993-06-28 1994-03-25 Circuit de traitement de signaux comportant un étage d'entrée à gain variable.

Country Status (1)

Country Link
FR (1) FR2717933B1 (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3921012A (en) * 1974-11-11 1975-11-18 Mdh Ind Inc Wide-range current-to-frequency converter
US4075701A (en) * 1975-02-12 1978-02-21 Messerschmitt-Bolkow-Blohm Gesellschaft Mit Beschrankter Haftung Method and circuit arrangement for adapting the measuring range of a measuring device operating with delta modulation in a navigation system
US4851841A (en) * 1987-10-02 1989-07-25 Crystal Semiconductor Corporation Gain scaling of oversampled analog-to-digital converters
EP0338837B1 (fr) * 1988-04-20 1996-09-04 Nec Corporation Circuit de conversion analogique-numérique à haute résolution et basse consommation en puissance
JPH02170723A (ja) * 1988-12-23 1990-07-02 Yamaha Corp Ａ／ｄ変換回路
DE3901399A1 (de) * 1989-01-19 1990-08-02 Messerschmitt Boelkow Blohm Anordnung zur umsetzung analoger signale in digitale
US5134401A (en) * 1991-03-12 1992-07-28 Analog Device, Inc. Delta sigma modulator having programmable gain/attenuation
US5187482A (en) * 1992-03-02 1993-02-16 General Electric Company Delta sigma analog-to-digital converter with increased dynamic range

Also Published As

Publication number Publication date
FR2717933A1 (fr) 1995-09-29

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20101130