JPS5537019A - Switched capacitor filter - Google Patents

Switched capacitor filter

Info

Publication number
JPS5537019A
JPS5537019A JP10968478A JP10968478A JPS5537019A JP S5537019 A JPS5537019 A JP S5537019A JP 10968478 A JP10968478 A JP 10968478A JP 10968478 A JP10968478 A JP 10968478A JP S5537019 A JPS5537019 A JP S5537019A
Authority
JP
Japan
Prior art keywords
integrator
stage
clock
delay
time
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.)
Granted
Application number
JP10968478A
Other languages
Japanese (ja)
Other versions
JPS5836849B2 (en
Inventor
Seiji Kato
Norio Ueno
Shinpei Matsuzaki
Atsushi Iwata
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.)
Fujitsu Ltd
NTT Inc
Original Assignee
Fujitsu Ltd
Nippon Telegraph and Telephone Corp
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 Fujitsu Ltd, Nippon Telegraph and Telephone Corp filed Critical Fujitsu Ltd
Priority to JP10968478A priority Critical patent/JPS5836849B2/en
Publication of JPS5537019A publication Critical patent/JPS5537019A/en
Publication of JPS5836849B2 publication Critical patent/JPS5836849B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H19/00—Networks using time-varying elements, e.g. N-path filters
    • H03H19/004—Switched capacitor networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Filters That Use Time-Delay Elements (AREA)

Abstract

PURPOSE:To reduce the delay of signal and obtain the attenuation property of good filtering by carrying out the timing of ON and OFF of the respective stage switch alternatingly. CONSTITUTION:ON and OF of switching of the capacitors of the longitudinally connected integrators 2a, 2b are alternatingly carried out with the sampling of the signals of the respective stage integrators having the phases shifted by using the two phase clock pulses phi1, phi2. Namely, the output of the first stage integrator 2a is sampled by the post integrator 2b after the time of 1/2 clock. The post integrator 2b has the output signal sampled by the first stage integrator 2a through the return circuit after 1/2 clock time. Accordingly, the delay of the signal generated in the respective stages is 1/2 clock time.
JP10968478A 1978-09-08 1978-09-08 switch capacitor filter Expired JPS5836849B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10968478A JPS5836849B2 (en) 1978-09-08 1978-09-08 switch capacitor filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10968478A JPS5836849B2 (en) 1978-09-08 1978-09-08 switch capacitor filter

Publications (2)

Publication Number Publication Date
JPS5537019A true JPS5537019A (en) 1980-03-14
JPS5836849B2 JPS5836849B2 (en) 1983-08-12

Family

ID=14516558

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10968478A Expired JPS5836849B2 (en) 1978-09-08 1978-09-08 switch capacitor filter

Country Status (1)

Country Link
JP (1) JPS5836849B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57180221A (en) * 1981-04-30 1982-11-06 Hitachi Ltd Switched capacitor
JPS58138434A (en) * 1982-02-15 1983-08-17 松下電工株式会社 Hemomanometer
JPS58138433A (en) * 1982-02-15 1983-08-17 松下電工株式会社 Hemomanometer
DE3325325A1 (en) 1983-07-13 1985-01-24 Siemens AG, 1000 Berlin und 8000 München Filter circuit consisting of switches and capacitors

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62111468U (en) * 1985-12-28 1987-07-16
JPS63144066U (en) * 1987-03-12 1988-09-22

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57180221A (en) * 1981-04-30 1982-11-06 Hitachi Ltd Switched capacitor
JPS58138434A (en) * 1982-02-15 1983-08-17 松下電工株式会社 Hemomanometer
JPS58138433A (en) * 1982-02-15 1983-08-17 松下電工株式会社 Hemomanometer
DE3325325A1 (en) 1983-07-13 1985-01-24 Siemens AG, 1000 Berlin und 8000 München Filter circuit consisting of switches and capacitors

Also Published As

Publication number Publication date
JPS5836849B2 (en) 1983-08-12

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