JPS6438028U - - Google Patents
Info
- Publication number
- JPS6438028U JPS6438028U JP12980987U JP12980987U JPS6438028U JP S6438028 U JPS6438028 U JP S6438028U JP 12980987 U JP12980987 U JP 12980987U JP 12980987 U JP12980987 U JP 12980987U JP S6438028 U JPS6438028 U JP S6438028U
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- signal
- oscillation circuit
- control signal
- digital mixer
- 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
- 230000010355 oscillation Effects 0.000 claims description 5
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Description
第１図はこの考案に係る発振器の一実施例を示
すブロツク図、第２図は同実施例のデジタルミキ
サの出力特性を説明するための波形図である。
１１……デジタルミキサ、１２……プログラマ
ブル分周器、１３……位相比較器、１４……ルー
プフイルタ、１５……ＶＣＯ回路、ｆｃ……比較
周波数信号、ｆｒ……基準周波数信号、ＶＣ……
制御信号、ｆＤ……発振出力周波数信号。
FIG. 1 is a block diagram showing an embodiment of an oscillator according to this invention, and FIG. 2 is a waveform diagram for explaining the output characteristics of the digital mixer of the same embodiment. 11... Digital mixer, 12... Programmable frequency divider, 13... Phase comparator, 14... Loop filter, 15... VCO circuit, fc... Comparison frequency signal, fr... Reference frequency signal, VC...
Control signal, fD...Oscillation output frequency signal.
Claims (1)
路と、この発振回路の出力に比較周波数信号を混
合するデジタルミキサと、このデジタルミキサの
出力信号を任意の比率で分周するプログラマブル
分周器と、このプログラマブル分周器の分周出力
信号と基準周波数信号とを位相比較する位相比較
器と、この位相比較器で得られた位相差を前記発
振回路の制御信号に変換する制御信号生成手段と
を具備する発振器。 An oscillation circuit whose oscillation frequency changes according to a control signal, a digital mixer that mixes a comparison frequency signal with the output of this oscillation circuit, and a programmable frequency divider that divides the output signal of this digital mixer at an arbitrary ratio. A phase comparator that compares the phases of the frequency-divided output signal of the programmable frequency divider and the reference frequency signal, and a control signal generation means that converts the phase difference obtained by the phase comparator into a control signal for the oscillation circuit. Oscillator equipped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12980987U JPS6438028U (en) | 1987-08-26 | 1987-08-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12980987U JPS6438028U (en) | 1987-08-26 | 1987-08-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6438028U true JPS6438028U (en) | 1989-03-07 |
Family
ID=31384427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12980987U Pending JPS6438028U (en) | 1987-08-26 | 1987-08-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6438028U (en) |
-
1987
- 1987-08-26 JP JP12980987U patent/JPS6438028U/ja active Pending