JPS56169911A - Frequency discriminator - Google Patents

Frequency discriminator

Info

Publication number
JPS56169911A
JPS56169911A JP7348780A JP7348780A JPS56169911A JP S56169911 A JPS56169911 A JP S56169911A JP 7348780 A JP7348780 A JP 7348780A JP 7348780 A JP7348780 A JP 7348780A JP S56169911 A JPS56169911 A JP S56169911A
Authority
JP
Japan
Prior art keywords
frequency
tuning
tuning circuit
capacitor
input terminal
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.)
Pending
Application number
JP7348780A
Other languages
Japanese (ja)
Inventor
Morio Takeuchi
Nobutaka Inoue
Junichi Shibata
Masahiro Otsu
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.)
Maspro Denkoh Corp
Original Assignee
Maspro Denkoh 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 Maspro Denkoh Corp filed Critical Maspro Denkoh Corp
Priority to JP7348780A priority Critical patent/JPS56169911A/en
Publication of JPS56169911A publication Critical patent/JPS56169911A/en
Pending 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
    • H03D3/26—Demodulation of angle-, frequency- or phase- modulated oscillations by means of sloping amplitude/frequency characteristic of tuned or reactive circuit

Landscapes

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

Abstract

PURPOSE:To pick up a detected output greatly, by providing the 1st capacitor between an input terminal and the 1st tuning circuit and the 2nd capacitor between the input terminal and the 2nd tuning circuit. CONSTITUTION:The 1st capacitor 2 can pass through high frequency signals almost without attenuation, and the effect of the impedance in the prestage circuit connected to an input terminal 1 can not be given to the 1st tuning circuit 3. In this tuning circuit 3, a frequency f1 higher than the center frequency f0 of an inputted FM signal is selected as the tuning frequency. The 2nd capacitor 4 can pass through high frequency signals almost without attenuation and avoid the effect of the impedance of the prestage circuit connected to the input terminal 1 from being given on the 2nd tuning circuit 5. In this tuning circuit 5, a frequency f2 lower than the center frequency f0 of the inputted FM signal is selected as the tuning frequency.
JP7348780A 1980-06-02 1980-06-02 Frequency discriminator Pending JPS56169911A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7348780A JPS56169911A (en) 1980-06-02 1980-06-02 Frequency discriminator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7348780A JPS56169911A (en) 1980-06-02 1980-06-02 Frequency discriminator

Publications (1)

Publication Number Publication Date
JPS56169911A true JPS56169911A (en) 1981-12-26

Family

ID=13519679

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7348780A Pending JPS56169911A (en) 1980-06-02 1980-06-02 Frequency discriminator

Country Status (1)

Country Link
JP (1) JPS56169911A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5289448A (en) * 1976-01-21 1977-07-27 Hitachi Ltd Fm demodulation circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5289448A (en) * 1976-01-21 1977-07-27 Hitachi Ltd Fm demodulation circuit

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