JPS63173929U - - Google Patents
Info
- Publication number
- JPS63173929U JPS63173929U JP6565087U JP6565087U JPS63173929U JP S63173929 U JPS63173929 U JP S63173929U JP 6565087 U JP6565087 U JP 6565087U JP 6565087 U JP6565087 U JP 6565087U JP S63173929 U JPS63173929 U JP S63173929U
- Authority
- JP
- Japan
- Prior art keywords
- output
- synchronized
- phase
- inputs
- outputs
- 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.)
- Granted
Links
- 230000005856 abnormality Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 230000010355 oscillation Effects 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Description
第１図は本考案の位相同期発振回路の構成を示
すブロツク図、第２図は第１図中の切換回路４が
動作したときの各発振器１，２の出力信号を示す
図、第３図は従来の位相同期発振回路の構成を示
すブロツク図である。
１……基準発振器、２，５……電圧制御発振器
、３……異常検出回路、４……切換回路、６，８
……位相比較回路、７，９……ＰＬＯ。
FIG. 1 is a block diagram showing the configuration of the phase-locked oscillator circuit of the present invention, FIG. 2 is a diagram showing the output signals of each oscillator 1 and 2 when switching circuit 4 in FIG. 1 operates, and FIG. 1 is a block diagram showing the configuration of a conventional phase-locked oscillation circuit. 1... Reference oscillator, 2, 5... Voltage controlled oscillator, 3... Abnormality detection circuit, 4... Switching circuit, 6, 8
...Phase comparator circuit, 7, 9...PLO.
Claims (1)
同期した位相同期信号を出力する第１のＰＬＯと
、 基準発振器の出力を入力して、基準発振器の出
力断を検出したとき異常検出信号を出力する異常
検出回路と、 通常は基準発振器の出力を入力し、異常検出回
路から異常検出信号が入力されたとき、第１のＰ
ＬＯ側の出力を入力する切換回路と、 切換回路の出力を入力して、該出力と位相が同
期した位相同期信号を出力する第２のＰＬＯを有
する位相同期発振回路。[Claims for Utility Model Registration] A reference oscillator; A first PLO that inputs the output of the reference oscillator and outputs a phase-synchronized signal whose phase is synchronized with the output; An abnormality detection circuit that outputs an abnormality detection signal when detecting an interruption in the output of the oscillator, and a first P
A phase synchronized oscillation circuit comprising: a switching circuit that inputs an output on the LO side; and a second PLO that inputs the output of the switching circuit and outputs a phase synchronized signal whose phase is synchronized with the output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987065650U JP2519887Y2 (en) | 1987-04-28 | 1987-04-28 | Phase locked oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987065650U JP2519887Y2 (en) | 1987-04-28 | 1987-04-28 | Phase locked oscillator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63173929U true JPS63173929U (en) | 1988-11-11 |
| JP2519887Y2 JP2519887Y2 (en) | 1996-12-11 |
Family
ID=30902922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987065650U Expired - Lifetime JP2519887Y2 (en) | 1987-04-28 | 1987-04-28 | Phase locked oscillator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2519887Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5180920A (en) * | 1975-01-08 | 1976-07-15 | Tokyo Shibaura Electric Co | |
| JPS6168532U (en) * | 1984-10-05 | 1986-05-10 |
-
1987
- 1987-04-28 JP JP1987065650U patent/JP2519887Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5180920A (en) * | 1975-01-08 | 1976-07-15 | Tokyo Shibaura Electric Co | |
| JPS6168532U (en) * | 1984-10-05 | 1986-05-10 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2519887Y2 (en) | 1996-12-11 |