JPS60114441U - Phase-locked oscillator circuit - Google Patents

Phase-locked oscillator circuit

Info

Publication number
JPS60114441U
JPS60114441U JP136684U JP136684U JPS60114441U JP S60114441 U JPS60114441 U JP S60114441U JP 136684 U JP136684 U JP 136684U JP 136684 U JP136684 U JP 136684U JP S60114441 U JPS60114441 U JP S60114441U
Authority
JP
Japan
Prior art keywords
voltage
phase
frequency
output
controlled oscillator
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
JP136684U
Other languages
Japanese (ja)
Inventor
山田　芳弘
Original Assignee
日本電気株式会社
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 日本電気株式会社 filed Critical 日本電気株式会社
Priority to JP136684U priority Critical patent/JPS60114441U/en
Publication of JPS60114441U publication Critical patent/JPS60114441U/en
Pending legal-status Critical Current

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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 drawings]

第１図は従来の位相同期式発振回路を示すブロック図、
第２図はこの考案の位相同期式発振回路の一例を示すブ
ロック図、第３図は電圧制御発振′器３の制御電圧と出
力周波数との関係を示す図である。　　− １：位相比較器、２，９：演算増幅器、３：電圧制御発
振器、４：周波数分周器、１４：低域通　　・′過フィ
ルタ、１７：バイアス電圧設定回路。Figure 1 is a block diagram showing a conventional phase-locked oscillator circuit.
FIG. 2 is a block diagram showing an example of the phase-locked oscillation circuit of this invention, and FIG. 3 is a diagram showing the relationship between the control voltage of the voltage controlled oscillator 3 and the output frequency. - 1: Phase comparator, 2, 9: Operational amplifier, 3: Voltage controlled oscillator, 4: Frequency divider, 14: Low pass filter, 17: Bias voltage setting circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 制御電圧に応じた周波数を発振する電圧制御発振器と、
その電圧制御発振器の出力周波数を所定入力周波数まで
分周する周波数分周器と、その周波数分周器の出力と外
部基準周波数とを位相比較する位相比較器と、その位相
比較器の出力を受け、前記電圧制御発振器の制御電圧を
作る低域通過フィルタと、その低域通過フィルタの出力
電圧゛を前記電圧制御発振器の制御電圧範囲内において
希望する出力周波数の制御電圧迄シフトさせ得るバイア
ス電圧設定回路とを有する位相同期式発振回路。a voltage controlled oscillator that oscillates a frequency according to the control voltage;
A frequency divider that divides the output frequency of the voltage controlled oscillator to a predetermined input frequency, a phase comparator that compares the phase of the output of the frequency divider with an external reference frequency, and a phase comparator that receives the output of the phase comparator. , a low-pass filter that generates a control voltage for the voltage-controlled oscillator, and a bias voltage setting that can shift the output voltage of the low-pass filter to a control voltage of a desired output frequency within the control voltage range of the voltage-controlled oscillator. A phase-locked oscillator circuit having a circuit.
JP136684U 1984-01-09 1984-01-09 Phase-locked oscillator circuit Pending JPS60114441U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP136684U JPS60114441U (en) 1984-01-09 1984-01-09 Phase-locked oscillator circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP136684U JPS60114441U (en) 1984-01-09 1984-01-09 Phase-locked oscillator circuit

Publications (1)

Publication Number Publication Date
JPS60114441U true JPS60114441U (en) 1985-08-02

Family

ID=30474044

Family Applications (1)

Application Number Title Priority Date Filing Date
JP136684U Pending JPS60114441U (en) 1984-01-09 1984-01-09 Phase-locked oscillator circuit

Country Status (1)

Country Link
JP (1) JPS60114441U (en)

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