JPS6088635U - phase locked loop - Google Patents

phase locked loop

Info

Publication number
JPS6088635U
JPS6088635U JP18005283U JP18005283U JPS6088635U JP S6088635 U JPS6088635 U JP S6088635U JP 18005283 U JP18005283 U JP 18005283U JP 18005283 U JP18005283 U JP 18005283U JP S6088635 U JPS6088635 U JP S6088635U
Authority
JP
Japan
Prior art keywords
locked loop
phase
mixer
phase locked
signal level
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
JP18005283U
Other languages
Japanese (ja)
Inventor
正樹 大西
関口　信男
Original Assignee
日立電子株式会社
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 日立電子株式会社 filed Critical 日立電子株式会社
Priority to JP18005283U priority Critical patent/JPS6088635U/en
Publication of JPS6088635U publication Critical patent/JPS6088635U/en
Pending legal-status Critical Current

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  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来の位相同期ループのブロック図、第２図は
本考案の一実施例の同上ブロック図である。 １：位相比較器、２：低域通過フィルタ、３：電圧制御
発振器、４：ミクサ、５：帯域通過フィルタ、６：分周
器、７：減衰器、８：スイッチ、９：同期検出回路。FIG. 1 is a block diagram of a conventional phase-locked loop, and FIG. 2 is a block diagram of an embodiment of the present invention. 1: Phase comparator, 2: Low pass filter, 3: Voltage controlled oscillator, 4: Mixer, 5: Band pass filter, 6: Frequency divider, 7: Attenuator, 8: Switch, 9: Synchronization detection circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ミクサと帯域通過フィルタを有する位相同期ループにお
いて、この位相同期ループに位相同期検出回路とミクサ
へ注入するローカル信号レベルを変化させる減衰器又は
増幅器を付加し、前記位相同期ループが非同期のときと
同期のときによって、ミクサ注入ローカル信号レベルを
切替えるようにしたことを特徴とする位相同期ループ。In a phase-locked loop having a mixer and a bandpass filter, a phase-locked detection circuit and an attenuator or amplifier that changes the local signal level injected to the mixer are added to the phase-locked loop, and synchronization is achieved when the phase-locked loop is asynchronous. A phase-locked loop characterized in that a mixer-injected local signal level is switched depending on when.
JP18005283U 1983-11-24 1983-11-24 phase locked loop Pending JPS6088635U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18005283U JPS6088635U (en) 1983-11-24 1983-11-24 phase locked loop

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18005283U JPS6088635U (en) 1983-11-24 1983-11-24 phase locked loop

Publications (1)

Publication Number Publication Date
JPS6088635U true JPS6088635U (en) 1985-06-18

Family

ID=30390498

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18005283U Pending JPS6088635U (en) 1983-11-24 1983-11-24 phase locked loop

Country Status (1)

Country Link
JP (1) JPS6088635U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5832357U (en) * 1981-08-20 1983-03-02 住友金属工業株式会社 Eddy current flaw detection equipment

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5832357U (en) * 1981-08-20 1983-03-02 住友金属工業株式会社 Eddy current flaw detection equipment

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