JPH0165526U - - Google Patents
Info
- Publication number
- JPH0165526U JPH0165526U JP1987159890U JP15989087U JPH0165526U JP H0165526 U JPH0165526 U JP H0165526U JP 1987159890 U JP1987159890 U JP 1987159890U JP 15989087 U JP15989087 U JP 15989087U JP H0165526 U JPH0165526 U JP H0165526U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- filter
- duty correction
- phase comparator
- vco
- 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 4
Landscapes
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Description
第１図は本考案の一実施例の構成を示したブロ
ツク図、第２図は第１図の６を説明する為のデユ
ーテイ補正回路の構成図、第３図は第２図の動作
を説明するためのタイムチヤート、第４図は本考
案の他の実施例を示したブロツク図、第５図は従
来のＰＬＯのブロツク図である。
１……位相比較器、２……フイルタ、３……Ｖ
ＣＯ、４……１／Ｎ分周器、５……1/2分周器、
６……デユーテイ補正回路、７……タンク回路、
８……コンパレータ回路。
Fig. 1 is a block diagram showing the configuration of an embodiment of the present invention, Fig. 2 is a block diagram of a duty correction circuit to explain 6 in Fig. 1, and Fig. 3 explains the operation of Fig. 2. FIG. 4 is a block diagram showing another embodiment of the present invention, and FIG. 5 is a block diagram of a conventional PLO. 1... Phase comparator, 2... Filter, 3... V
CO, 4...1/N frequency divider, 5...1/2 frequency divider,
6... Duty correction circuit, 7... Tank circuit,
8... Comparator circuit.
Claims (1)
等しいデジタルパルスを発生させるＶＣＯ、並び
に帰環回路より成るＰＬＯ回路において、デユー
テイ補正回路を付加したことを特徴とするＰＬＯ
回路。 A PLO circuit consisting of a phase comparator, a filter, a VCO that generates a digital pulse equal to the output frequency, and a loop return circuit, in which a duty correction circuit is added.
circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987159890U JPH0165526U (en) | 1987-10-21 | 1987-10-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987159890U JPH0165526U (en) | 1987-10-21 | 1987-10-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0165526U true JPH0165526U (en) | 1989-04-26 |
Family
ID=31441488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987159890U Pending JPH0165526U (en) | 1987-10-21 | 1987-10-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0165526U (en) |
-
1987
- 1987-10-21 JP JP1987159890U patent/JPH0165526U/ja active Pending