JPH0375615U - - Google Patents
Info
- Publication number
- JPH0375615U JPH0375615U JP13778689U JP13778689U JPH0375615U JP H0375615 U JPH0375615 U JP H0375615U JP 13778689 U JP13778689 U JP 13778689U JP 13778689 U JP13778689 U JP 13778689U JP H0375615 U JPH0375615 U JP H0375615U
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- crystal oscillator
- voltage
- frequency divider
- circuit
- 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
- Oscillators With Electromechanical Resonators (AREA)
Description
第１図は本考案の実施例を示すブロツク線図、
第２図は従来技術による水晶発振器を示すブロツ
ク線図、第３図は本考案の他の実施例を示すブロ
ツク線図である。
１ａ，１，２ａ，２ｆ，３ａ，３…ＣＭ
Ｓ インバータ、１ｂ，１ｊ，２ｂ，３ｂ，３ｐ
…抵抗、１ｄ，１ｅ，１ｋ，２ｄ，２ｅ，３ｄ，
３ｅ…コンデンサ、１ｃ，２ｃ，３ｃ…水晶振動
子、１ｆ，１ｇ，３ｆ，３ｇ…ダイナミツク分周
器、１ｈ，３ｈ…スタチツク分周器、３ｎ…バリ
キヤツプ・ダイオード、３ｊ…電圧レギユレータ
、３ｋ…レベル シフタ、３ｑ…サーミスタ回路
網。
FIG. 1 is a block diagram showing an embodiment of the present invention;
FIG. 2 is a block diagram showing a crystal oscillator according to the prior art, and FIG. 3 is a block diagram showing another embodiment of the present invention. 1a, 1, 2a, 2f, 3a, 3...CM
S Inverter, 1b, 1j, 2b, 3b, 3p
...Resistance, 1d, 1e, 1k, 2d, 2e, 3d,
3e... Capacitor, 1c, 2c, 3c... Crystal resonator, 1f, 1g, 3f, 3g... Dynamic frequency divider, 1h, 3h... Static frequency divider, 3n... Varicap diode, 3j... Voltage regulator, 3k... Level Shifter, 3q...Thermistor circuit network.
Claims (1)
源より低い電圧で駆動され、前記分周器の出力信
号を受ける出力回路が前記主電源電圧で駆動され
、且つ、前記出力信号の周波数が、無線周波数帯
におけるチヤネル分離周波数と等しいことを特徴
とする水晶発振器。 (2) 前記水晶発振器と前記分周器を駆動する電
圧が抵抗と前記抵抗の一端に接続し、他の端子が
接地されるコンデンサにより作られるか、又は、
専用の電圧レギユレータにより作られることを特
徴とする前記第(1)項記載の水晶発振器。 (3) 前記電圧レギユレータの出力端子と接地間
にサーミスタ回路網と可変容量素子が挿入され、
前記サーミスタ回路網により作られる電圧で前記
発振回路の周波数が制御されることを特徴とする
前記第(2)項記載の水晶発振器。[Claims for Utility Model Registration] (1) An oscillation circuit and a frequency divider for the oscillation signal are driven at a voltage lower than the main power supply, and an output circuit that receives the output signal of the frequency divider is driven at the main power supply voltage. A crystal oscillator characterized in that the frequency of the output signal is equal to a channel separation frequency in a radio frequency band. (2) the voltage driving the crystal oscillator and the frequency divider is produced by a resistor and a capacitor connected to one end of the resistor and whose other terminal is grounded;
The crystal oscillator according to item (1) above, characterized in that it is produced by a dedicated voltage regulator. (3) a thermistor network and a variable capacitance element are inserted between the output terminal of the voltage regulator and ground;
The crystal oscillator according to item (2), wherein the frequency of the oscillation circuit is controlled by the voltage generated by the thermistor circuit network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13778689U JPH0375615U (en) | 1989-11-27 | 1989-11-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13778689U JPH0375615U (en) | 1989-11-27 | 1989-11-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0375615U true JPH0375615U (en) | 1991-07-30 |
Family
ID=31684929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13778689U Pending JPH0375615U (en) | 1989-11-27 | 1989-11-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0375615U (en) |
-
1989
- 1989-11-27 JP JP13778689U patent/JPH0375615U/ja active Pending
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