JPS59132248U - phase locked circuit - Google Patents
phase locked circuitInfo
- Publication number
- JPS59132248U JPS59132248U JP2411983U JP2411983U JPS59132248U JP S59132248 U JPS59132248 U JP S59132248U JP 2411983 U JP2411983 U JP 2411983U JP 2411983 U JP2411983 U JP 2411983U JP S59132248 U JPS59132248 U JP S59132248U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- frequency
- controlled oscillator
- phase
- phase locked
- 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
Links
Landscapes
- 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
第１図は従来の位相同期回路のブロック図、輌２図は本
考案の実施例のブロック図、第３図は電圧制御発振器の
制御電圧対、出力周波数との特性図、第４図ａ”＝ｄは
この実施例の動作波形図、第５図は第２図の側御電圧゛
発振器の制御電圧の波形図である。図において１・・・
基準周波数発振器、２・・・位相比較器、３．４・・・
低域通過フィルタ、５・・・電性制御発振器、６・・・
ＩＪ ｌ、−１７・・・周波数分周器、８・・・ダイオ
ードスイッチ回路、Ｒ・・・抵抗、Ｃ・・・コンデンサ
、ＤＩ、Ｄ２・・・ダイオードである。Figure 1 is a block diagram of a conventional phase-locked circuit, Figure 2 is a block diagram of an embodiment of the present invention, Figure 3 is a characteristic diagram of the control voltage vs. output frequency of a voltage controlled oscillator, and Figure 4 is a. =d is an operating waveform diagram of this embodiment, and FIG. 5 is a waveform diagram of the side control voltage "oscillator control voltage" in FIG. 2. In the figure, 1...
Reference frequency oscillator, 2... Phase comparator, 3.4...
Low-pass filter, 5...Electrically controlled oscillator, 6...
IJ l, -17...Frequency divider, 8...Diode switch circuit, R...Resistor, C...Capacitor, DI, D2...Diode.
Claims (1)
こ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、この周一波数分周器の出力と
前記入力周波数とを位相比較する位相比較器と、この位
相比較器の出力を受は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、この低域フィルタと並列に接
続され所定電圧以上を通過させるダイオードスイッチ回
路とを含む位相同期回路。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-frequency divider with the input frequency; The receiver is a phase synchronized circuit that includes a low-pass filter that generates a control voltage for the voltage-controlled oscillator, and a diode switch circuit that is connected in parallel with the low-pass filter and allows a voltage higher than a predetermined voltage to pass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2411983U JPS59132248U (en) | 1983-02-21 | 1983-02-21 | phase locked circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2411983U JPS59132248U (en) | 1983-02-21 | 1983-02-21 | phase locked circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59132248U true JPS59132248U (en) | 1984-09-05 |
Family
ID=30155175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2411983U Pending JPS59132248U (en) | 1983-02-21 | 1983-02-21 | phase locked circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59132248U (en) |
-
1983
- 1983-02-21 JP JP2411983U patent/JPS59132248U/en active Pending
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