JPH01160733U - - Google Patents
Info
- Publication number
- JPH01160733U JPH01160733U JP5594988U JP5594988U JPH01160733U JP H01160733 U JPH01160733 U JP H01160733U JP 5594988 U JP5594988 U JP 5594988U JP 5594988 U JP5594988 U JP 5594988U JP H01160733 U JPH01160733 U JP H01160733U
- Authority
- JP
- Japan
- Prior art keywords
- output signal
- frequency
- variable
- frequency divider
- voltage
- 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 2
Landscapes
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Description
第１図は本考案の一実施例を示すブロツク図、
第２図は従来例を示すブロツク図である。
２…第１の分周器、３…位相比較器、４…電圧
制御発振器、５…第２の分周器、６…ループフイ
ルタ、７…可変基準発振器。
FIG. 1 is a block diagram showing an embodiment of the present invention.
FIG. 2 is a block diagram showing a conventional example. 2... First frequency divider, 3... Phase comparator, 4... Voltage controlled oscillator, 5... Second frequency divider, 6... Loop filter, 7... Variable reference oscillator.
Claims (1)
準発振器と、この可変周波数発生器の出力信号を
分周する第１の分周器と、制御電圧に従つて出力
周波数が変化可能な電圧制御発振器と、この電圧
制御発振器の出力信号を分周する第２の分周器と
、前記第１の分周器の出力信号を基準として前記
第２の分周器の出力信号との位相誤差に応じ、前
記電圧制御発振器を制御する前記制御電圧を発生
する位相比較器とを具備することを特徴とする周
波数シンセサイザ。 a variable reference oscillator that generates an output signal in a variable frequency; a first frequency divider that divides the output signal of the variable frequency generator; and a voltage-controlled oscillator whose output frequency is variable in accordance with a control voltage. , according to a phase error between a second frequency divider that divides the output signal of the voltage controlled oscillator and an output signal of the second frequency divider with reference to the output signal of the first frequency divider, A frequency synthesizer comprising: a phase comparator that generates the control voltage that controls the voltage controlled oscillator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5594988U JPH01160733U (en) | 1988-04-27 | 1988-04-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5594988U JPH01160733U (en) | 1988-04-27 | 1988-04-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01160733U true JPH01160733U (en) | 1989-11-08 |
Family
ID=31281834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5594988U Pending JPH01160733U (en) | 1988-04-27 | 1988-04-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01160733U (en) |
-
1988
- 1988-04-27 JP JP5594988U patent/JPH01160733U/ja active Pending