JPS62151240U - - Google Patents
Info
- Publication number
- JPS62151240U JPS62151240U JP3693486U JP3693486U JPS62151240U JP S62151240 U JPS62151240 U JP S62151240U JP 3693486 U JP3693486 U JP 3693486U JP 3693486 U JP3693486 U JP 3693486U JP S62151240 U JPS62151240 U JP S62151240U
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- crystal oscillator
- output
- modulation
- compensated
- 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
- 239000013078 crystal Substances 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims 1
- 230000010355 oscillation Effects 0.000 claims 1
- 230000002194 synthesizing effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Transmitters (AREA)
- 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すブロツ
ク図。第２図および第３図は従来例を示すブロツ
ク図。
６……温度補償用電圧発生回路、７……ＦＭ変
調用水晶発振器、９……温度補償水晶発振器、１
０……位相比較器、１１……ローパスフイルタ、
１２……電圧合成器。
FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. FIGS. 2 and 3 are block diagrams showing conventional examples. 6... Voltage generation circuit for temperature compensation, 7... Crystal oscillator for FM modulation, 9... Temperature compensation crystal oscillator, 1
0... Phase comparator, 11... Low pass filter,
12...Voltage synthesizer.
Claims (1)
変調用水晶発振器の発振周波数を温度に対して安
定化する温度補償電圧発生回路と、温度補償水晶
発振器とを備えたＦＭ送信機において、要求され
る送信周波数温度安定度に応じて選択的に設けら
れて前記温度補償水晶発振器の出力と前記ＦＭ変
調用水晶発振器の出力とを位相比較する位相比較
器と、前記位相比較器からの出力を前記温度補償
電圧発生回路の出力に加える合成手段とを設けた
ことを特徴とするＦＭ送信機。 a crystal oscillator for FM modulation;
In an FM transmitter equipped with a temperature-compensated voltage generation circuit that stabilizes the oscillation frequency of the modulation crystal oscillator against temperature and a temperature-compensated crystal oscillator, it is selectively provided according to the required transmission frequency temperature stability. a phase comparator for comparing the phases of the output of the temperature-compensated crystal oscillator and the output of the FM modulation crystal oscillator; and a synthesizing means for adding the output from the phase comparator to the output of the temperature-compensated voltage generating circuit. An FM transmitter characterized by the following.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3693486U JPS62151240U (en) | 1986-03-15 | 1986-03-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3693486U JPS62151240U (en) | 1986-03-15 | 1986-03-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62151240U true JPS62151240U (en) | 1987-09-25 |
Family
ID=30847796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3693486U Pending JPS62151240U (en) | 1986-03-15 | 1986-03-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62151240U (en) |
-
1986
- 1986-03-15 JP JP3693486U patent/JPS62151240U/ja active Pending