JPS61163439U - - Google Patents
Info
- Publication number
- JPS61163439U JPS61163439U JP4640285U JP4640285U JPS61163439U JP S61163439 U JPS61163439 U JP S61163439U JP 4640285 U JP4640285 U JP 4640285U JP 4640285 U JP4640285 U JP 4640285U JP S61163439 U JPS61163439 U JP S61163439U
- Authority
- JP
- Japan
- Prior art keywords
- phase
- amplifier
- output signal
- locked circuit
- 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
Links
- 239000003990 capacitor Substances 0.000 claims description 2
- 230000010355 oscillation Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Description
第１図はこの考案による位相同期回路の一実施
例を示す図、第２図は従来の位相同期回路の一例
を示す図、第３図は従来の位相同期回路の他の例
を示す図である。
図において、１は位相比較器、２は直流増幅器
、３は低域ろ波器、４は電圧制御発振器、５はス
イツチ、６は入力信号、Ｒ１，Ｒ２は第１、第２
の抵抗器、Ｃはコンデンサである。なお、図中同
一符号は、同一または相当部分を示す。
FIG. 1 is a diagram showing an embodiment of the phase-locked circuit according to this invention, FIG. 2 is a diagram showing an example of a conventional phase-locked circuit, and FIG. 3 is a diagram showing another example of the conventional phase-locked circuit. be. In the figure, 1 is a phase comparator, 2 is a DC amplifier, 3 is a low-pass filter, 4 is a voltage controlled oscillator, 5 is a switch, 6 is an input signal, R1 and R2 are first and second
is a resistor, and C is a capacitor. Note that the same reference numerals in the figures indicate the same or corresponding parts.
Claims (1)
ナリ型位相比較特性で位相比較する位相比較器と
、前記位相比較器の出力信号を増幅する直流増幅
器と、前記直流増幅器から出力される位相比較信
号の低域成分を通過させ、その出力信号を上記電
圧制御発振器に与えて発振周波数の位相を変化さ
せるための低域ろ波器とを備えた位相同期回路に
おいて、上記位相比較器と上記直流増幅器の間に
設けられた第１の抵抗器と、前記第１の抵抗器と
上記直流増幅器との接続部とアース間に設けられ
、第２の抵抗器、コンデンサおよびスイツチが直
列に接続された回路とを具備したことを特徴とす
る位相同期回路。 a phase comparator that compares the phase of the input signal with the output signal of the voltage controlled oscillator using binary phase comparison characteristics; a DC amplifier that amplifies the output signal of the phase comparator; and a phase comparison signal output from the DC amplifier. A phase-locked circuit comprising a low-pass filter for passing a low-frequency component and applying its output signal to the voltage-controlled oscillator to change the phase of the oscillation frequency, the phase-locked circuit comprising the phase comparator and the DC amplifier. a first resistor provided between the circuit; a second resistor, a capacitor, and a switch connected in series; A phase-locked circuit characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4640285U JPS61163439U (en) | 1985-03-29 | 1985-03-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4640285U JPS61163439U (en) | 1985-03-29 | 1985-03-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61163439U true JPS61163439U (en) | 1986-10-09 |
Family
ID=30560760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4640285U Pending JPS61163439U (en) | 1985-03-29 | 1985-03-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61163439U (en) |
-
1985
- 1985-03-29 JP JP4640285U patent/JPS61163439U/ja active Pending
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