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JPS6420706A - Quadrature detecting circuit - Google Patents

Quadrature detecting circuit

Info

Publication number
JPS6420706A
JPS6420706A JP17777387A JP17777387A JPS6420706A JP S6420706 A JPS6420706 A JP S6420706A JP 17777387 A JP17777387 A JP 17777387A JP 17777387 A JP17777387 A JP 17777387A JP S6420706 A JPS6420706 A JP S6420706A
Authority
JP
Japan
Prior art keywords
input
phase shift
phase
frequency
shift means
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
JP17777387A
Other languages
Japanese (ja)
Inventor
Masashi Shimakata
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 JP17777387A priority Critical patent/JPS6420706A/en
Publication of JPS6420706A publication Critical patent/JPS6420706A/en
Pending legal-status Critical Current

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  • Circuits Of Receivers In General (AREA)

Abstract

PURPOSE:To attain the entire cost-down including manufacture by connecting an impedance element between the input of a phase shift means and a reference potential then making the input frequency whose detected output goes to zero coincident with the matching frequency which minimizes the distortion. CONSTITUTION:A phase shift means 2 phase-shifting the input FM signal by 90 deg. and generating an output having a phase change in response to the frequency shift of the input FM signal is provided, the input FM signal and the output of the phase shift means 2 are multiplied to use the low frequency component as the FM detection output, and an impedance element 9 is connected between the input of the phase shift means 2 and the reference potential. For example, a capacitor 9 is connected between the input of the phase shift circuit 2 and the ground, and in selecting the capacitance Co' of the capacitor 9 to be 1/omegao<2>Lo, the phase is coincident with 90 deg. at the input frequency at the time of matching, to minimize distortion, thereby reducing the cost.
JP17777387A 1987-07-16 1987-07-16 Quadrature detecting circuit Pending JPS6420706A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17777387A JPS6420706A (en) 1987-07-16 1987-07-16 Quadrature detecting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17777387A JPS6420706A (en) 1987-07-16 1987-07-16 Quadrature detecting circuit

Publications (1)

Publication Number Publication Date
JPS6420706A true JPS6420706A (en) 1989-01-24

Family

ID=16036866

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17777387A Pending JPS6420706A (en) 1987-07-16 1987-07-16 Quadrature detecting circuit

Country Status (1)

Country Link
JP (1) JPS6420706A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0495275U (en) * 1990-12-28 1992-08-18

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0495275U (en) * 1990-12-28 1992-08-18

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