MX9101511A - ACTIVE FILTERING CIRCUIT - Google Patents

ACTIVE FILTERING CIRCUIT

Info

Publication number
MX9101511A
MX9101511A MX9101511A MX9101511A MX9101511A MX 9101511 A MX9101511 A MX 9101511A MX 9101511 A MX9101511 A MX 9101511A MX 9101511 A MX9101511 A MX 9101511A MX 9101511 A MX9101511 A MX 9101511A
Authority
MX
Mexico
Prior art keywords
filtering circuit
active filtering
active
circuit
filtering
Prior art date
Application number
MX9101511A
Other languages
Spanish (es)
Inventor
Joseph P Heck
Barry L Jason
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of MX9101511A publication Critical patent/MX9101511A/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H03D7/161—Multiple-frequency-changing all the frequency changers being connected in cascade
    • H03D7/163—Multiple-frequency-changing all the frequency changers being connected in cascade the local oscillations of at least two of the frequency changers being derived from a single oscillator
    • 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
    • H03H11/0444—Simulation of ladder networks
    • H03H11/045—Leapfrog structures

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Networks Using Active Elements (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transmitters (AREA)
  • Noise Elimination (AREA)
MX9101511A 1990-10-10 1991-10-10 ACTIVE FILTERING CIRCUIT MX9101511A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US59506290A 1990-10-10 1990-10-10

Publications (1)

Publication Number Publication Date
MX9101511A true MX9101511A (en) 1992-06-05

Family

ID=24381563

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9101511A MX9101511A (en) 1990-10-10 1991-10-10 ACTIVE FILTERING CIRCUIT

Country Status (8)

Country Link
JP (1) JPH05503409A (en)
AR (1) AR246644A1 (en)
BR (1) BR9106178A (en)
CA (1) CA2069639A1 (en)
DE (1) DE4192545T (en)
GB (2) GB2255461B (en)
MX (1) MX9101511A (en)
WO (1) WO1992007422A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6489847B1 (en) 2000-01-28 2002-12-03 Telefonaktiebolaget Lm Ericsson Low distoration driving amplifier for integrated filters
GB2394133A (en) * 2002-10-17 2004-04-14 Toumaz Technology Ltd Radio receiver with reconfigurable filtering arrangement

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB491693A (en) * 1937-01-21 1938-09-07 Hazeltine Corp Improvements in variable selectivity radio receivers
GB856892A (en) * 1957-11-14 1960-12-21 Collins Radio Co Means for reducing the threshold of angular-modulation receivers
US3805091A (en) * 1972-06-15 1974-04-16 Arp Instr Frequency sensitive circuit employing variable transconductance circuit
US4374335A (en) * 1980-05-19 1983-02-15 Precision Monolithics, Inc. Tuneable I.C. active integrator
US4356657A (en) * 1981-02-11 1982-11-02 Adolph E. Goldfarb Toy car wash apparatus and method
US4356658A (en) * 1981-02-11 1982-11-02 Goldfarb Adolph E Multiple and varied motion stage apparatus for doll figure
CA1190289A (en) * 1981-04-28 1985-07-09 Nippon Hoso Kyokai Fm signal demodulation system
JPS6250029B1 (en) * 1981-08-31 1987-10-22 Oki Electric Ind Co Ltd
WO1983000974A1 (en) * 1981-08-31 1983-03-17 Ohta, Tomozo High-sensitivity fm demodulating system
IT1212744B (en) * 1983-05-19 1989-11-30 Sogs Ates Componenti Elettroni CIRCUIT FOR THE ATTENUATION OF INTERFERENCE IN A RADIO RECEIVER BY USING AN ADJUSTABLE BANDWIDTH LOW-PASS FILTER.
US4591805A (en) * 1984-05-30 1986-05-27 General Electric Company Adaptive bandwidth amplifier
US4839542A (en) * 1984-08-21 1989-06-13 General Datacomm Industries, Inc. Active transconductance filter device
DE3737581A1 (en) * 1987-11-05 1989-05-18 Grundig Emv DEVICE FOR AUTOMATICALLY APPLYING THE BALANCING VOLTAGE TO THE TUNABLE SWITCHING ELEMENTS OF THE ZF AMPLIFIER OF A TELEVISION RECEIVER
JPH02186723A (en) * 1988-08-25 1990-07-23 Nec Corp Receiver
US5051628A (en) * 1990-01-02 1991-09-24 Motorola, Inc. Integrated filter circuit

Also Published As

Publication number Publication date
CA2069639A1 (en) 1992-04-11
JPH05503409A (en) 1993-06-03
AR246644A1 (en) 1994-08-31
GB2284718A (en) 1995-06-14
GB9503349D0 (en) 1995-04-12
BR9106178A (en) 1993-03-16
GB9212049D0 (en) 1992-08-12
DE4192545T (en) 1992-10-08
GB2255461B (en) 1995-06-14
GB2255461A (en) 1992-11-04
WO1992007422A1 (en) 1992-04-30

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