JPS61103935U - - Google Patents

Info

Publication number
JPS61103935U
JPS61103935U JP18823984U JP18823984U JPS61103935U JP S61103935 U JPS61103935 U JP S61103935U JP 18823984 U JP18823984 U JP 18823984U JP 18823984 U JP18823984 U JP 18823984U JP S61103935 U JPS61103935 U JP S61103935U
Authority
JP
Japan
Prior art keywords
voltage
phase difference
oscillation
vco
control
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
JP18823984U
Other languages
English (en)
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 filed Critical
Priority to JP18823984U priority Critical patent/JPS61103935U/ja
Publication of JPS61103935U publication Critical patent/JPS61103935U/ja
Pending legal-status Critical Current

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Landscapes

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

Description

【図面の簡単な説明】
第1図はPLL方式の発振回路の従来例を示す
ブロツク図、第2図は第1図の回路の発振停止防
止動作を示す図、第3図は本考案の実施例を示す
ブロツク図、第4図は第3図の回路の発振停止回
避動作を示す図である。 主要部分の符号の説明、1…VCO、4…プロ
グラマブル分周器、5…位相検出器、11…発振
停止検出回路、12…トリガパルス発生回路。

Claims (1)

    【実用新案登録請求の範囲】
  1. 制御端を有し該制御端に供給される電圧が所定
    の電圧範囲内にあるときその電圧に応じた周波数
    にて発振するVCOと、該VCOの発振周波数に
    応じた周波数信号と基準周波数信号との位相差を
    表わす位相差電圧を発生する位相検出手段と、前
    記位相差電圧が供給され出力電圧を制御電圧とし
    て前記制御端に供給するLPFと、前記VCOの
    発振停止を前記位相検出手段の出力電圧状態に基
    づいて検出して検出信号を発生する発振停止検出
    手段と、前記検出信号に応じて前記所定の電圧範
    囲内の電圧を有するトリガパルスを前記制御端に
    供給するトリガパルス発生手段とを含むことを特
    徴とする発振回路。
JP18823984U 1984-12-11 1984-12-11 Pending JPS61103935U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18823984U JPS61103935U (ja) 1984-12-11 1984-12-11

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18823984U JPS61103935U (ja) 1984-12-11 1984-12-11

Publications (1)

Publication Number Publication Date
JPS61103935U true JPS61103935U (ja) 1986-07-02

Family

ID=30745711

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18823984U Pending JPS61103935U (ja) 1984-12-11 1984-12-11

Country Status (1)

Country Link
JP (1) JPS61103935U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004208152A (ja) * 2002-12-26 2004-07-22 Mitsubishi Electric Corp 遅延回路

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57152234A (en) * 1981-03-13 1982-09-20 Matsushita Electronics Corp Large-scale integrated circuit for pll tuning

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57152234A (en) * 1981-03-13 1982-09-20 Matsushita Electronics Corp Large-scale integrated circuit for pll tuning

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004208152A (ja) * 2002-12-26 2004-07-22 Mitsubishi Electric Corp 遅延回路

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