JPS63196109U - - Google Patents
Info
- Publication number
- JPS63196109U JPS63196109U JP8736787U JP8736787U JPS63196109U JP S63196109 U JPS63196109 U JP S63196109U JP 8736787 U JP8736787 U JP 8736787U JP 8736787 U JP8736787 U JP 8736787U JP S63196109 U JPS63196109 U JP S63196109U
- Authority
- JP
- Japan
- Prior art keywords
- oscillation circuit
- input
- mos inverter
- series
- ground
- 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.)
- Granted
Links
- 239000013078 crystal Substances 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 claims description 2
- 230000010355 oscillation Effects 0.000 claims 4
- 230000000295 complement effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 7
Landscapes
- Oscillators With Electromechanical Resonators (AREA)
Description
第１図はこの考案の一実施例を示す回路図、第
２図は第１図の等価回路図、第３図はこの考案の
第２実施例を示す回路図、第４図はゲート入力バ
イアス素子を用いたときの回路図、第５図は第４
図の等価回路図、第６図は周波数対負性抵抗特性
図、第７図はこの考案の第３実施例を示す回路図
、第８図は従来例の回路図である。
１，２……Ｃ―ＭＯＳインバータ、ＲＡ，ＲＢ
……低抵抗、Ｘｔａｌ……水晶発振器、Ｃ１，Ｃ
２……コンデンサ、Ｒｆ……帰還抵抗。
Fig. 1 is a circuit diagram showing an embodiment of this invention, Fig. 2 is an equivalent circuit diagram of Fig. 1, Fig. 3 is a circuit diagram showing a second embodiment of this invention, Fig. 4 is a gate input bias The circuit diagram when using the element, Fig. 5 is the 4th
6 is a frequency versus negative resistance characteristic diagram, FIG. 7 is a circuit diagram showing a third embodiment of this invention, and FIG. 8 is a circuit diagram of a conventional example. 1, 2...C-MOS inverter, RA, RB
...Low resistance, Xtal...Crystal oscillator, C 1 , C
2 ... Capacitor, R f ... Feedback resistor.
Claims (1)
ンバータの入出力端間に、水晶振動子と帰還抵抗
を接続するとともに、Ｃ―ＭＯＳインバータの入
出力端と接地間にコンデンサを接続したコルピツ
ツ型発振回路を設け、電源と接地間に直列接続し
た低インピーダンスのゲート入力バイアス素子か
らなる直列回路を設け、この直列回路の共通接続
点を前記発振回路のＣ―ＭＯＳインバータの入力
端に接続したことを特徴とするオーバートーン水
晶発振回路。 (2) 前記直列回路はツエナーダイオードと抵抗
からなることを特徴とする実用新案登録請求の範
囲第１項に記載のオーバートーン水晶発振回路。[Claims for Utility Model Registration] (1) A crystal oscillator and a feedback resistor are connected between the input and output terminals of a C-MOS inverter consisting of complementary MOSFETs, and between the input and output terminals of the C-MOS inverter and ground. A Colpitts type oscillation circuit with a capacitor connected is provided, and a series circuit consisting of a low impedance gate input bias element connected in series between the power supply and ground is provided, and the common connection point of this series circuit is connected to the C-MOS inverter of the oscillation circuit. An overtone crystal oscillation circuit characterized by being connected to the input end. (2) The overtone crystal oscillation circuit according to claim 1, wherein the series circuit includes a Zener diode and a resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8736787U JPH066594Y2 (en) | 1987-06-05 | 1987-06-05 | Overtone crystal oscillator circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8736787U JPH066594Y2 (en) | 1987-06-05 | 1987-06-05 | Overtone crystal oscillator circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63196109U true JPS63196109U (en) | 1988-12-16 |
| JPH066594Y2 JPH066594Y2 (en) | 1994-02-16 |
Family
ID=30944509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8736787U Expired - Lifetime JPH066594Y2 (en) | 1987-06-05 | 1987-06-05 | Overtone crystal oscillator circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH066594Y2 (en) |
-
1987
- 1987-06-05 JP JP8736787U patent/JPH066594Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH066594Y2 (en) | 1994-02-16 |
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