JPS61119416U - - Google Patents
Info
- Publication number
- JPS61119416U JPS61119416U JP120085U JP120085U JPS61119416U JP S61119416 U JPS61119416 U JP S61119416U JP 120085 U JP120085 U JP 120085U JP 120085 U JP120085 U JP 120085U JP S61119416 U JPS61119416 U JP S61119416U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- controlled crystal
- crystal oscillator
- command
- temperature
- 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 11
- 238000010586 diagram Methods 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
Landscapes
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Oscillators With Electromechanical Resonators (AREA)
Description
第１図は本考案の実施例の構成を示す図、第２
図は本考案のコマンド制御型水晶発振器の温度補
償回路出力点における出力電圧温度特性を示す図
、第３図は本考案のコマンド制御型水晶発振器の
周波数温度特性を示す図、第４図は恒温槽付電圧
制御型水晶発振器の回路例を示す図、第５図は第
４図の如き恒温槽付電圧制御型水晶発振器の周波
数制御電圧対発振周波数特性を示す図、第６図は
、第４図の如き恒温槽付電圧制御型水晶発振器の
周波数温度特性を示す図、第７図はコマンド制御
回路内で用いられるＤ／Ａ変換回路を示す図、第
８図は第７図のＤ／Ａ変換回路の出力電圧の温度
特性を示す図である。
１…水晶振動子、２…発振用トランジスタ、４
〜７…コンデンサ、８〜１１…抵抗器、１２…出
力端子、１３…電源入力端子、１４…接地端子、
１７…可変容量ダイオード、１８，１９…コンデ
ンサ、２０…抵抗器、２１…周波数制御電圧（バ
イアス電圧）入力端子、２２…発熱体、２３…感
温素子、２４…断熱槽、２５…温度制御回路、２
６，２７…スイツチング用トランジスタ、２８〜
３１…スイツチング用ダイオード、３２…演算増
幅器、３３〜４２…抵抗器、４３，４４…コマン
ドパルス入力端子、４５…直流電圧出力端子、４
６…電源入力端子、４７…コマンド制御回路、４
８…恒温槽付電圧制御型水晶発振器、４９〜５１
…抵抗器、５２…サーミスタ、５３，５４…コマ
ンドパルス入力端子、５５…信号出力端子、５６
…直流電圧出力端子、５７…周波数制御電圧入力
端子、５８…温度補償回路。
Fig. 1 is a diagram showing the configuration of an embodiment of the present invention;
The figure shows the output voltage temperature characteristics at the output point of the temperature compensation circuit of the command-controlled crystal oscillator of the present invention, Figure 3 shows the frequency-temperature characteristics of the command-controlled crystal oscillator of the present invention, and Figure 4 shows the constant temperature FIG. 5 is a diagram showing a circuit example of a voltage-controlled crystal oscillator with a thermostatic chamber as shown in FIG. A diagram showing the frequency-temperature characteristics of a voltage-controlled crystal oscillator with a constant temperature oven as shown in the figure, FIG. 7 is a diagram showing a D/A conversion circuit used in the command control circuit, and FIG. FIG. 3 is a diagram showing the temperature characteristics of the output voltage of the conversion circuit. 1... Crystal resonator, 2... Oscillation transistor, 4
~7...Capacitor, 8~11...Resistor, 12...Output terminal, 13...Power input terminal, 14...Ground terminal,
17... Variable capacitance diode, 18, 19... Capacitor, 20... Resistor, 21... Frequency control voltage (bias voltage) input terminal, 22... Heating element, 23... Temperature sensing element, 24... Heat insulation tank, 25... Temperature control circuit ,2
6, 27...Switching transistor, 28-
31... Switching diode, 32... Operational amplifier, 33-42... Resistor, 43, 44... Command pulse input terminal, 45... DC voltage output terminal, 4
6...Power input terminal, 47...Command control circuit, 4
8... Voltage controlled crystal oscillator with constant temperature oven, 49-51
...Resistor, 52...Thermistor, 53, 54...Command pulse input terminal, 55...Signal output terminal, 56
...DC voltage output terminal, 57...Frequency control voltage input terminal, 58...Temperature compensation circuit.
Claims (1)
網で構成されるＤ／Ａ変換器を主素子とするコマ
ンド制御回路と恒温槽付水晶振動子を用いた電圧
制御型水晶発振器を有するコマンド制御型水晶発
振器において、前記コマンド制御回路の制御用直
流電圧出力端子と前記電圧制御型水晶発振器の周
波数制御電圧入力端子との間に、感温素子と抵抗
回路網とからなり温度上昇と共に出力電圧が上昇
する温度補償回路を接続したことを特徴とするコ
マンド制御型水晶発振器。 A command-controlled crystal oscillator has a command control circuit whose main element is a D/A converter composed of an operational amplifier, a switching diode, and a resistor network, and a voltage-controlled crystal oscillator using a temperature-controlled crystal resonator. A temperature compensation circuit that includes a temperature sensing element and a resistor network and whose output voltage increases as the temperature rises is provided between the control DC voltage output terminal of the command control circuit and the frequency control voltage input terminal of the voltage controlled crystal oscillator. A command-controlled crystal oscillator characterized in that it is connected to
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP120085U JPS61119416U (en) | 1985-01-09 | 1985-01-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP120085U JPS61119416U (en) | 1985-01-09 | 1985-01-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61119416U true JPS61119416U (en) | 1986-07-28 |
Family
ID=30473730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP120085U Pending JPS61119416U (en) | 1985-01-09 | 1985-01-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61119416U (en) |
-
1985
- 1985-01-09 JP JP120085U patent/JPS61119416U/ja active Pending
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