JPS5636205A - Pulse count type fm detector - Google Patents

Pulse count type fm detector

Info

Publication number
JPS5636205A
JPS5636205A JP11268679A JP11268679A JPS5636205A JP S5636205 A JPS5636205 A JP S5636205A JP 11268679 A JP11268679 A JP 11268679A JP 11268679 A JP11268679 A JP 11268679A JP S5636205 A JPS5636205 A JP S5636205A
Authority
JP
Japan
Prior art keywords
comparator
monostable
detection
pulse train
output
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
JP11268679A
Other languages
Japanese (ja)
Other versions
JPS6410962B2 (en
Inventor
Kijio Sakayori
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic 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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP11268679A priority Critical patent/JPS5636205A/en
Publication of JPS5636205A publication Critical patent/JPS5636205A/en
Publication of JPS6410962B2 publication Critical patent/JPS6410962B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
    • H03D3/04—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by counting or integrating cycles of oscillations

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Circuits Of Receivers In General (AREA)
  • Manipulation Of Pulses (AREA)

Abstract

PURPOSE:To make a pulse response characteristic and S/N ptoimum, by providing the first comparator having the monostable function together with a time constant circuit and the second comparator which generates the output pulse train for FM detection. CONSTITUTION:The first comparator consisting of transistors (TR) TR1 and TR2 connected differentially, current source I1, and resistance R2 cooperates with the time constant circuit consisting of capacitor C1 and resistance R2 to perform the monostable operation. The second comparator consisting of another TR3 and TR4 connected differentially, current source I2, and resistances R7 and R8 generates a pulse train output. It is possible to design current sources I1 and I2 independently by providing the comparator for monostable function and the comparator to generate the pulse train for FM detection separately in this manner, so that the current value required for the monostable operation can be made optimum and the current value can be set to an optimum value to obtain the characteristic required for the output for FM detection.
JP11268679A 1979-09-03 1979-09-03 Pulse count type fm detector Granted JPS5636205A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11268679A JPS5636205A (en) 1979-09-03 1979-09-03 Pulse count type fm detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11268679A JPS5636205A (en) 1979-09-03 1979-09-03 Pulse count type fm detector

Publications (2)

Publication Number Publication Date
JPS5636205A true JPS5636205A (en) 1981-04-09
JPS6410962B2 JPS6410962B2 (en) 1989-02-22

Family

ID=14592929

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11268679A Granted JPS5636205A (en) 1979-09-03 1979-09-03 Pulse count type fm detector

Country Status (1)

Country Link
JP (1) JPS5636205A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001320276A (en) * 2000-05-12 2001-11-16 Oki Electric Ind Co Ltd Digital/analog converter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001320276A (en) * 2000-05-12 2001-11-16 Oki Electric Ind Co Ltd Digital/analog converter

Also Published As

Publication number Publication date
JPS6410962B2 (en) 1989-02-22

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