JPS6424503A - Frequency converting device - Google Patents

Frequency converting device

Info

Publication number
JPS6424503A
JPS6424503A JP62180382A JP18038287A JPS6424503A JP S6424503 A JPS6424503 A JP S6424503A JP 62180382 A JP62180382 A JP 62180382A JP 18038287 A JP18038287 A JP 18038287A JP S6424503 A JPS6424503 A JP S6424503A
Authority
JP
Japan
Prior art keywords
frequency
oscillator
oscillation
output signal
phase
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
JP62180382A
Other languages
Japanese (ja)
Inventor
Michihiro Komatsu
Katsumi Hida
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.)
Alps Alpine Co Ltd
Original Assignee
Alps Electric Co Ltd
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 Alps Electric Co Ltd filed Critical Alps Electric Co Ltd
Priority to JP62180382A priority Critical patent/JPS6424503A/en
Publication of JPS6424503A publication Critical patent/JPS6424503A/en
Pending legal-status Critical Current

Links

Landscapes

  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

PURPOSE:To obtain a stable high-frequency output signal with high frequency accuracy by putting part of a phase-locked loop in operation and adjusting the oscillation frequency of an oscillator finely. CONSTITUTION:The titled device has a 3rd oscillator 21 which follows up the frequency of the high-frequency output signal, a synchronous detector 20 outputting a lock detection signal when the oscillation frequency of the 3rd oscillator 21 becomes equal to the frequency of the high-frequency output signal, and detecting the high-frequency output signal, and a phase-locked loop fixing the oscillation frequency of a 1st oscillator L1 at set oscillation frequencies. Then a control means sets the oscillation frequency of the 1st oscillator L1 through the phase-locked loop and part of the phase-locked loop is put in operation so that the frequency of the high-frequency output signal reaches a specific frequency according to the oscillation output of the 3rd oscillator 21 in the synchronous detector when the lock detection signal is obtained from the synchronous detector after said setting operation, thereby adjusting the oscillation frequency of the 1st oscillator L1. Consequently, an output frequency is stabilized speedily with high accuracy.
JP62180382A 1987-07-20 1987-07-20 Frequency converting device Pending JPS6424503A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62180382A JPS6424503A (en) 1987-07-20 1987-07-20 Frequency converting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62180382A JPS6424503A (en) 1987-07-20 1987-07-20 Frequency converting device

Publications (1)

Publication Number Publication Date
JPS6424503A true JPS6424503A (en) 1989-01-26

Family

ID=16082259

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62180382A Pending JPS6424503A (en) 1987-07-20 1987-07-20 Frequency converting device

Country Status (1)

Country Link
JP (1) JPS6424503A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0491430U (en) * 1990-12-26 1992-08-10

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0491430U (en) * 1990-12-26 1992-08-10

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