JPH0365322U - - Google Patents
Info
- Publication number
- JPH0365322U JPH0365322U JP12613789U JP12613789U JPH0365322U JP H0365322 U JPH0365322 U JP H0365322U JP 12613789 U JP12613789 U JP 12613789U JP 12613789 U JP12613789 U JP 12613789U JP H0365322 U JPH0365322 U JP H0365322U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- crystal
- crystal oscillator
- excitation electrodes
- disk
- 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 14
- 230000005284 excitation Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 1
Landscapes
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Description
第１図は本考案になる電圧制御型水晶発振器の
主要部である水晶振動子の一実施例構成図であり
、同図Ａは正面図、同図Ｂは同図ＡのＡ−Ａ線で
切断した縦断面図、第２図は本考案になる電圧制
御型水晶発振器の一実施例基本構成回路図、第３
図は本考案になる電圧制御型水晶発振器の主要部
である水晶振動子の周波数対負荷容量ＣＬ特性図
、第４図は本考案になる電圧制御型水晶発振器の
周波数対負荷容量特性図、第５図、第６図は従来
の電圧制御型水晶発振器の周波数可変量を増加さ
せる方法の説明図である。
３……水晶振動子、３ａ……水晶円板、４ａ，
４ｂ……第１及び第２の励振電極、５……電圧制
御型水晶発振器（ＶＣＸＯ）、ｄΦ，ｄａΦ，ｄ
ｂΦ……励振電極の直径、△ｆａ，△ｆｂ……周
波数可変幅（周波数可変幅）。
Figure 1 is a block diagram of an embodiment of a crystal oscillator, which is the main part of the voltage-controlled crystal oscillator according to the present invention. FIG. 2 is a cutaway longitudinal sectional view, and FIG. 2 is a basic configuration circuit diagram of an embodiment of the voltage-controlled crystal oscillator according to the present invention.
The figure shows the frequency vs. load capacitance CL characteristic of the crystal resonator, which is the main part of the voltage controlled crystal oscillator of the present invention. 5 and 6 are explanatory diagrams of a method for increasing the amount of frequency variation of a conventional voltage-controlled crystal oscillator. 3...Crystal resonator, 3a...Crystal disk, 4a,
4b...First and second excitation electrodes, 5...Voltage controlled crystal oscillator (VCXO), dΦ, daΦ, d
bΦ...Diameter of excitation electrode, △fa, △fb... Frequency variable width (frequency variable width).
Claims (1)
第１及び第２の励振電極とからなる水晶振動子を
備えた電圧制御型水晶発振器において、 所望の周波数可変幅を得ると共に周波数変化の
直線性を向上させるように前記第１及び第２の励
振電極の径の値を設定したことを特徴とする電圧
制御型水晶発振器。[Claims for Utility Model Registration] In a voltage-controlled crystal oscillator equipped with a crystal resonator consisting of a crystal disk and first and second excitation electrodes provided on both sides of the crystal disk, A voltage-controlled crystal oscillator, characterized in that the diameters of the first and second excitation electrodes are set so as to obtain a variable width and improve linearity of frequency change.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12613789U JPH0365322U (en) | 1989-10-27 | 1989-10-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12613789U JPH0365322U (en) | 1989-10-27 | 1989-10-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0365322U true JPH0365322U (en) | 1991-06-25 |
Family
ID=31673974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12613789U Pending JPH0365322U (en) | 1989-10-27 | 1989-10-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0365322U (en) |
-
1989
- 1989-10-27 JP JP12613789U patent/JPH0365322U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0365322U (en) | ||
| JPS63187412U (en) | ||
| JPS58101515U (en) | Variable frequency SHF oscillator | |
| JPS6310616U (en) | ||
| JPS61103914U (en) | ||
| JPS63129313U (en) | ||
| JPS62159015U (en) | ||
| JPS61104620U (en) | ||
| JPH0249229U (en) | ||
| JPH02118313U (en) | ||
| JPH036310U (en) | ||
| JPS63181012U (en) | ||
| JPH0348922U (en) | ||
| JPS6249314U (en) | ||
| JPH01115352U (en) | ||
| JPH02111914U (en) | ||
| JPS62114521U (en) | ||
| JPH0264223U (en) | ||
| JPH028220U (en) | ||
| JPS63117109U (en) | ||
| JPS5986715U (en) | voltage controlled oscillator | |
| JPS63159915U (en) | ||
| JPH01110518U (en) | ||
| JPS625722U (en) | ||
| JPS61195105U (en) |