JPS60108017U - crystal oscillation circuit - Google Patents
crystal oscillation circuitInfo
- Publication number
- JPS60108017U JPS60108017U JP20280383U JP20280383U JPS60108017U JP S60108017 U JPS60108017 U JP S60108017U JP 20280383 U JP20280383 U JP 20280383U JP 20280383 U JP20280383 U JP 20280383U JP S60108017 U JPS60108017 U JP S60108017U
- Authority
- JP
- Japan
- Prior art keywords
- oscillation circuit
- crystal oscillation
- crystal
- circuit
- transistor
- 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
Landscapes
- Measurement Of Current Or Voltage (AREA)
- Oscillators With Electromechanical Resonators (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は先行技術の電気回路図、第２図はコイルＬ１の
温度特性を示す図、第３図はコンデンサＣ１の温度特性
を示す図、第４図はコイルＬ１とコンデンサＣ１との直
列回路の温度特性を示すグラフ、第４Ａ図は他の先行技
術の電気回路図、第５図は本考案の一実施例の電気回路
図、第６図は電圧依存型可変容量ダイオードＤ２の特性
を示す図、第７図はサーミスタＲ１５の温度特性を示す
図、第８図は本考案の他の実施例の電気回路図、第９図
は本考案のさらに他の実施例の電気回路図、第１０図は
本考案のもう１つの実施例の電気回路図である。
ＸＴ・・・水晶振動子、Ｑ２．Ｑ３・・・トランジス、
夕、Ｄ２・・・電圧依存型可変容量ダイオード、Ｌｌｍ
、Ｌ１２．Ｌ２２・・・コイル、Ｃ１２，Ｃ１３゜Ｃ１
４，Ｃ２２，Ｃ２３，Ｃ２４・・・コンデンサ、Ｒ１１
，Ｒ１２，Ｒ１３，Ｒ１４，Ｒ１６，Ｒ１７、Ｒ２１，
Ｒ２２，Ｒ２３・・・抵抗、Ｒ１５・・・サーミスタ。
Ｖｃｃ Ｖｃｃ
町１
温浸
第９図
第１０図Figure 1 is an electric circuit diagram of the prior art, Figure 2 is a diagram showing the temperature characteristics of coil L1, Figure 3 is a diagram showing the temperature characteristics of capacitor C1, and Figure 4 is a series circuit of coil L1 and capacitor C1. FIG. 4A is an electric circuit diagram of another prior art, FIG. 5 is an electric circuit diagram of an embodiment of the present invention, and FIG. 6 is a graph showing the characteristics of a voltage-dependent variable capacitance diode D2. 7 is a diagram showing the temperature characteristics of thermistor R15, FIG. 8 is an electric circuit diagram of another embodiment of the present invention, FIG. 9 is an electric circuit diagram of still another embodiment of the present invention, and FIG. The figure is an electrical circuit diagram of another embodiment of the present invention. XT...Crystal resonator, Q2. Q3...Transis,
D2...Voltage dependent variable capacitance diode, Llm
, L12. L22...Coil, C12, C13°C1
4, C22, C23, C24... Capacitor, R11
, R12, R13, R14, R16, R17, R21,
R22, R23...Resistor, R15...Thermistor. Vcc Vcc Town 1 Digestion Figure 9 Figure 10
Claims (1)
ジスタのベースを接続し、このトランジスタに関連して
タンク回路を接続した水晶発振回路において、 タンク回路は、電圧依存型可変容量ダイオードを含み、
この可変容量ダイオードの容量を変化して発振周波数を
一定に保ち、または変化することを特徴とする水晶発振
回路。[Claims for Utility Model Registration] In a crystal oscillator circuit in which a coil is connected in series to a crystal resonator, the base of a transistor is connected, and a tank circuit is connected in connection with this transistor, the tank circuit is a voltage-dependent type. Contains a variable capacitance diode,
A crystal oscillation circuit characterized in that the oscillation frequency is kept constant or varied by changing the capacitance of this variable capacitance diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20280383U JPS60108017U (en) | 1983-12-23 | 1983-12-23 | crystal oscillation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20280383U JPS60108017U (en) | 1983-12-23 | 1983-12-23 | crystal oscillation circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60108017U true JPS60108017U (en) | 1985-07-23 |
Family
ID=30765235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20280383U Pending JPS60108017U (en) | 1983-12-23 | 1983-12-23 | crystal oscillation circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60108017U (en) |
-
1983
- 1983-12-23 JP JP20280383U patent/JPS60108017U/en active Pending
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