JPS6157718U - - Google Patents
Info
- Publication number
- JPS6157718U JPS6157718U JP14263484U JP14263484U JPS6157718U JP S6157718 U JPS6157718 U JP S6157718U JP 14263484 U JP14263484 U JP 14263484U JP 14263484 U JP14263484 U JP 14263484U JP S6157718 U JPS6157718 U JP S6157718U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- controlled variable
- variable oscillator
- circuit
- input signal
- 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
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Description
第１図は本考案になるＰＬＬ回路の一実施例を
示す図、第２図は従来のＰＬＬ回路の一例を示す
図、第３図は本考案になるＰＬＬ回路の具体的回
路例を示す図である。
１０…入力端子、１１…位相比較器、１２…演
算増幅器、１３…直流基準電圧源、１４…ボルテ
ージフオロア、１５…電圧制御型可変発振器（Ｖ
ＣＯ）、１６…出力端子。
FIG. 1 is a diagram showing an example of the PLL circuit according to the present invention, FIG. 2 is a diagram showing an example of a conventional PLL circuit, and FIG. 3 is a diagram showing a specific circuit example of the PLL circuit according to the present invention. It is. 10... Input terminal, 11... Phase comparator, 12... Operational amplifier, 13... DC reference voltage source, 14... Voltage follower, 15... Voltage controlled variable oscillator (V
CO), 16...Output terminal.
Claims (1)
較し、その位相差に応じた出力がローパスフイル
タを経由して前記電圧制御型可変発振器を制御し
、入力信号に同期させるＰＬＬ回路において、Ｐ
ＬＬ回路ループ内の制御を交流的に行ない、前記
電圧制御型可変発振器を制御する直流基準電圧源
を、前記電圧制御型可変発振器とともに集積回路
内に設けるよう構成したことを特徴とするＰＬＬ
回路。 In a PLL circuit that compares the phases of an input signal and a voltage-controlled variable oscillator signal, and outputs an output corresponding to the phase difference via a low-pass filter to control the voltage-controlled variable oscillator and synchronize it with the input signal,
A PLL characterized in that the LL circuit loop is controlled in an alternating current manner, and a DC reference voltage source for controlling the voltage-controlled variable oscillator is provided in an integrated circuit together with the voltage-controlled variable oscillator.
circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14263484U JPS6157718U (en) | 1984-09-20 | 1984-09-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14263484U JPS6157718U (en) | 1984-09-20 | 1984-09-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6157718U true JPS6157718U (en) | 1986-04-18 |
Family
ID=30700949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14263484U Pending JPS6157718U (en) | 1984-09-20 | 1984-09-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6157718U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5922446A (en) * | 1982-07-29 | 1984-02-04 | Mitsubishi Electric Corp | Phase locked circuit |
-
1984
- 1984-09-20 JP JP14263484U patent/JPS6157718U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5922446A (en) * | 1982-07-29 | 1984-02-04 | Mitsubishi Electric Corp | Phase locked circuit |