JPS5873652U - phase locked loop circuit - Google Patents

phase locked loop circuit

Info

Publication number
JPS5873652U
JPS5873652U JP16828081U JP16828081U JPS5873652U JP S5873652 U JPS5873652 U JP S5873652U JP 16828081 U JP16828081 U JP 16828081U JP 16828081 U JP16828081 U JP 16828081U JP S5873652 U JPS5873652 U JP S5873652U
Authority
JP
Japan
Prior art keywords
locked loop
loop circuit
phase
low
phase comparator
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
JP16828081U
Other languages
Japanese (ja)
Inventor
正弘 佐藤
Original Assignee
株式会社日立製作所
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 株式会社日立製作所 filed Critical 株式会社日立製作所
Priority to JP16828081U priority Critical patent/JPS5873652U/en
Publication of JPS5873652U publication Critical patent/JPS5873652U/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) [Summary] 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 the drawing]

第１図は従来例による位相同期ループ回路図、第２図は
本考案の一実施例による位相同期ループ回路図である。 １：基準周波数発振器、２：位相比較器、３：低域ｐ波
器、４：電圧制御発振器、５：可変分周器、６：高い遮
断周波数を持つ低域ろ波器、７：可変合成器。FIG. 1 is a phase-locked loop circuit diagram according to a conventional example, and FIG. 2 is a phase-locked loop circuit diagram according to an embodiment of the present invention. 1: Reference frequency oscillator, 2: Phase comparator, 3: Low-pass p-wave generator, 4: Voltage-controlled oscillator, 5: Variable frequency divider, 6: Low-pass filter with high cut-off frequency, 7: Variable synthesis vessel.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 基準周波数発振器と位相比較器と低域ろ波器と電圧制御
発振器とイ贅分周器からなる位相同期ループ回路におい
て、前記位相比較器出力端子に前記低域波波器と他の高
い遮断周波数をもつ低域ろ波器を並列に接続し、これら
二つの低域波波器の出力端子と電圧制御発振器の入力端
子との間に可変合成器を接続し、この可変合成器の合成
比を前記位相比較器からの同期状態検出信号によって制
御するようにしたことを特徴とする位相同期ループ回路
。In a phase-locked loop circuit consisting of a reference frequency oscillator, a phase comparator, a low-pass filter, a voltage-controlled oscillator, and a frequency divider, the phase comparator output terminal is connected to the low-pass filter and other high cut-off frequencies. A variable synthesizer is connected between the output terminals of these two low-pass filters and the input terminal of the voltage controlled oscillator, and the synthesis ratio of the variable synthesizer is A phase-locked loop circuit characterized in that it is controlled by a synchronization state detection signal from the phase comparator.
JP16828081U 1981-11-13 1981-11-13 phase locked loop circuit Pending JPS5873652U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16828081U JPS5873652U (en) 1981-11-13 1981-11-13 phase locked loop circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16828081U JPS5873652U (en) 1981-11-13 1981-11-13 phase locked loop circuit

Publications (1)

Publication Number Publication Date
JPS5873652U true JPS5873652U (en) 1983-05-18

Family

ID=29960332

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16828081U Pending JPS5873652U (en) 1981-11-13 1981-11-13 phase locked loop circuit

Country Status (1)

Country Link
JP (1) JPS5873652U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5317079U (en) * 1976-07-26 1978-02-14

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5317079U (en) * 1976-07-26 1978-02-14

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