JPH0265510A - Crystal oscillator - Google Patents
Crystal oscillatorInfo
- Publication number
- JPH0265510A JPH0265510A JP21794388A JP21794388A JPH0265510A JP H0265510 A JPH0265510 A JP H0265510A JP 21794388 A JP21794388 A JP 21794388A JP 21794388 A JP21794388 A JP 21794388A JP H0265510 A JPH0265510 A JP H0265510A
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- JP
- Japan
- Prior art keywords
- circuit
- frequency
- oscillating
- voltage
- oscillation
- 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 title claims abstract description 26
- 230000010355 oscillation Effects 0.000 claims abstract description 47
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 6
- 241000273930 Brevoortia tyrannus Species 0.000 description 1
- 235000010005 Catalpa ovata Nutrition 0.000 description 1
- 240000004528 Catalpa ovata Species 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は水晶発振器（以下、温度補償発振器とする）を
利用分骨とし、特に水晶片に二組のＭ １％対を設けて
一方を発振子用、他方をセンサ用とした電圧制御型の水
晶発振器に関する。[Detailed Description of the Invention] (Industrial Application Field) The present invention utilizes a crystal oscillator (hereinafter referred to as a temperature compensated oscillator), and in particular, two M 1% pairs are provided on a crystal piece, one of which is This invention relates to a voltage-controlled crystal oscillator, one for an oscillator and the other for a sensor.
（発明の背景）
水晶発振器は周波数安定度等が良好なことから周波数及
び時間等の基準源として多用されろ。これらの中には、
水晶振動子（こ起因した周波数温度特性（以下、渇魔特
性とする）を補償し、更に安定な周波数を１りろものと
して電圧筒ｖＮＪ型の温度補償発振器がある。(Background of the Invention) Crystal oscillators are often used as reference sources for frequency, time, etc. because of their good frequency stability. Among these are
There is a voltage cylinder vNJ type temperature compensated oscillator that compensates for the frequency temperature characteristics (hereinafter referred to as "temperature characteristics") caused by a crystal oscillator and has a more stable frequency.
（従来例）
第４図はこの種の水晶発振器を説明する概略構成図であ
る。(Conventional Example) FIG. 4 is a schematic configuration diagram illustrating this type of crystal oscillator.
温度補償発振器は発振回路１と温度補償回路２とからな
る。発振回路１は水晶振動子３を発振子としてその一端
を発振用トランジスタ４に接続する。なお、発振回路１
は例えば図示しないコルピッ・・ｌ型の回路網を形成す
る。そして、水晶振動子３を例えばＡＴカットとじ、温
度特性を第５図の曲線（イ）１ζ示１７たように三次曲
線とする。温度補償回路２は水晶振動子３の他端に設け
た電圧可変容量ダイオード例えば可変ダイオード５に補
償電圧発生回路６を接続してなる。補償電圧発生回路６
は図示しないサーミスタ・抵抗等からなる。The temperature compensated oscillator consists of an oscillation circuit 1 and a temperature compensation circuit 2. The oscillation circuit 1 uses a crystal resonator 3 as an oscillator, and one end thereof is connected to an oscillation transistor 4. Note that the oscillation circuit 1
forms, for example, a Colpis L-type circuit network (not shown). Then, the crystal resonator 3 is subjected to an AT cut, for example, and its temperature characteristics are made into a cubic curve as shown by curve (a) 1ζ in FIG. The temperature compensation circuit 2 is formed by connecting a compensation voltage generation circuit 6 to a voltage variable capacitance diode, such as a variable diode 5, provided at the other end of the crystal resonator 3. Compensation voltage generation circuit 6
consists of a thermistor, resistor, etc. not shown.
そして、周囲温度に応答した補償電圧■、を発生する。Then, it generates a compensation voltage (2) in response to the ambient temperature.
補償電圧Ｖ、は前述した三次特性とは逆特ヂｒとなる、
１うに設定されろ「第６図の曲線（ロ）」。したがって
、このＬうｔｒものでは、可変グイオー１！５の？ＩＩ
Ｉ賞電圧Ｖ５に１．（づく容量変化により、発振回路１
の湿度特性を補償して平坦な補償温度特性を得ろ「第５
図の曲１♀（ハ）」。The compensation voltage V has an inverse characteristic to the cubic characteristic described above.
1. Set it to ``Curve (b) in Figure 6''. Therefore, in this Lutr thing, the variable Guio 1!5? II
1 to I prize voltage V5. (Due to the capacitance change, the oscillation circuit 1
Obtain a flat compensated temperature characteristic by compensating for the humidity characteristic of
Figure song 1♀ (c).
（従来技１ｔ７の問題点）
しかしながら、上記構成の温度補償発振器では、周ＩＭ
温度に応答した補茄電圧を得るのに→トーミスケ・抵抗
の複雑な直・並列回路網からなる補償ポ圧発生ＩＩｉ′
ｉ路を必要とする。そして、抵抗等の各値の設定には多
くの時間とｒＡ整を要し製作しにくい、、また、現実的
には、？＋１１償電圧を発振回路の温度特性とは全く逆
の特性にすることは不可能で、１みずしも充分な？ｌＩ
′Ｉ償温度特性を得ることのできない問題があった。(Problem with conventional technique 1t7) However, in the temperature compensated oscillator with the above configuration, the frequency
In order to obtain a complementary voltage that responds to temperature, a compensation voltage generation IIi' consisting of a complex series/parallel network of Tomiske resistors is used.
Requires i-way. And setting each value of resistance etc. requires a lot of time and rA adjustment, making it difficult to manufacture.Also, in reality? It is impossible to make the +11 compensation voltage have characteristics that are completely opposite to the temperature characteristics of the oscillation circuit, and is even 1 degree sufficient? lI
There was a problem in that it was not possible to obtain I-compensated temperature characteristics.
（沼明の目的）
本発明は製作を容易にして良好な補償温度特性を得るこ
とのできる温度補償発振を提供することを目的とする。(Purpose of Akira Numa) An object of the present invention is to provide a temperature-compensated oscillation device that can be manufactured easily and can obtain good compensated temperature characteristics.
（発明の解決手段）
本発明は、水晶片に二組のＴｉｉ対を形成して各組の電
極対に発振回路を接続し、−・方の発振回路？ζ１．を
補償雷圧発１ｐ回路を設けてその発振周波数に応答した
補償電圧を発生させ、他方の発振回路には前記補償電圧
の印加されろ電圧可変容量素子を設け、前記補償電圧に
より他方の発振回路の発振周波数を制御したこと解決手
段とする。以下、本発明の一実施例を説明する。(Solution Means of the Invention) The present invention forms two Tii pairs on a crystal piece, connects an oscillation circuit to each electrode pair, and ? ζ1. A lightning pressure oscillation circuit 1p is provided to generate a compensation voltage responsive to its oscillation frequency, and the other oscillation circuit is provided with a voltage variable capacitance element to which the compensation voltage is applied, and the compensation voltage causes the other oscillation circuit to generate a compensation voltage. The solution is to control the oscillation frequency. An embodiment of the present invention will be described below.
（実施例）
＠１図は本発明の一実＃ｉ例を説明する温度補償発振器
の概略構成図である９、なお、前実施例図と同一部分に
は同番号を付与してその説明は簡略する。(Example) Figure 1 is a schematic configuration diagram of a temperature compensated oscillator for explaining example #i of the present invention.9 The same parts as in the previous embodiment diagram are given the same numbers, and the explanation thereof will be omitted. Simplify.
温度補償発振器は二組の電極対７．８を形成した水晶振
動子９を利用する。水晶振動子９は例えばＡＴカッ！・
とじて厚みの等しい平板状の水晶片１０からなる。二組
のＩＩ対７．８は互いＺζａ：ｑ的結合がない程度に距
離をもって形成され、それぞわ独立的に同一周波数の厚
みすべ呻＠動を励起する。そして、二組のＴｉ掩対７．
８にそれぞれを発振子として発振回路１１．１２を接続
する１、発振回路１１．１２はともに例えば発振トラン
ジス々４を備えたコルピ・ソツ型とする。このようなも
のでは、いずれの発振回路１１．１２も同一の発振／１
’ＩＩ波数とし、）昂Ｉτ特性を三次１１１梓「前第５
図の曲線（（）Ｊとするうそして、一方の発振回路１１
には電極対７との間に可変ダイオード５を接続して前述
１７た電圧制御型とする。また、他方の発振器！？ｉ１
２には周波数電圧変換回＃！１３を設け、その出力端を
可変ダイオード５のカソード側に接続する。そして、周
波数電圧変換回路１３は他方の発振器ｆＦｉ １２の発
振周波数に基づき補償電圧Ｖ、を発生する。但し、？１
１１償電圧Ｖ、は発振回路１１（１２）の温度特性とは
逆特性となるように設定さオ］ろ「ｉ′？′ｔＩ第６図
の曲線（ロ）」。The temperature compensated oscillator utilizes a crystal resonator 9 formed with two electrode pairs 7.8. For example, the crystal oscillator 9 is AT!・
It consists of a flat crystal piece 10 of equal thickness when closed. The two II pairs 7.8 are formed at such a distance that there is no Zζa:q coupling with each other, and they each independently excite the same frequency of thickness motion. And two sets of Ti bunkers 7.
The oscillation circuits 1 and 11 and 11 and 12 are both of the Korpi-Sotsu type having oscillation transistors 4, for example. In such a device, both oscillation circuits 11 and 12 have the same oscillation/1
'II wave number,) the Iτ characteristic is the third-order 111 Azusa 'previous 5th
The curve in the figure (() is denoted by J, and one of the oscillation circuits 11
A variable diode 5 is connected between the electrode pair 7 and the voltage control type described in 17 above is obtained. Also, the other oscillator! ? i1
2 is frequency voltage conversion times #! 13 is provided, and its output end is connected to the cathode side of the variable diode 5. Then, the frequency-voltage conversion circuit 13 generates a compensation voltage V based on the oscillation frequency of the other oscillator fFi 12. however,? 1
The compensation voltage V, 11, is set so as to have a characteristic opposite to the temperature characteristic of the oscillation circuit 11 (12).
上記構成の温度？’ｆＩＭ発振器では、温度変化に伴う
補償電圧ｖ１が可変ダイオード５に印加されるので、一
方の発振器路１１の温度特性を補償して安定な発振周波
数を供給する。そして、他方の発振回路１２は謂わば温
度センサとして作用するともに一方の発振回路１１と同
一基板の水晶片１０を発振子とするので、その動作を全
く同じにして一方の発振回路１１に追従する。したがっ
て、例丸ばサーミスタ等により周囲温度を検出して補償
１圧Ｖ、を供給する従来の補償電圧発生回路６等に比較
して時間等の遅れを生ずることがない。また、補償電圧
Ｖ、は他方の発振回路１２の発振周波数を単に電圧変換
すればよいので、複雑なサーミス々・抵抗の直・並列回
路網を不要とし製作を容易とする。また、水晶振動子９
の温度特性は必ずしも正確な三次曲線であることなく規
格外の例えば第２図に示したような傾きの大きいもの等
でも適用できろ。What is the temperature of the above configuration? In the 'fIM oscillator, a compensation voltage v1 accompanying temperature change is applied to the variable diode 5, so the temperature characteristics of one oscillator path 11 are compensated to provide a stable oscillation frequency. The other oscillation circuit 12 acts as a so-called temperature sensor, and uses the crystal piece 10 on the same substrate as the one oscillation circuit 11 as an oscillator, so its operation is exactly the same and follows the one oscillation circuit 11. . Therefore, compared to the conventional compensation voltage generation circuit 6 or the like which detects the ambient temperature using a round thermistor or the like and supplies one compensation voltage V, there is no delay in time or the like. Furthermore, since the compensation voltage V can be obtained by simply converting the oscillation frequency of the other oscillation circuit 12 into a voltage, a complicated series/parallel network of thermistors and resistors is not required, making manufacturing easy. In addition, the crystal oscillator 9
The temperature characteristics are not necessarily accurate cubic curves, but may also be applied to non-standard curves, such as those with a large slope as shown in FIG.
（他の事項）
なお、上記実施例では温度特性を補償するものとして説
明したが、他方の発振回路は一方の発振回路の温度以外
の要因による周波数変化に対１７ても追従する。したが
って、例えば電源変動による周波数変化等に対してもｍ
ｓすることができる。(Other Matters) Although the above embodiment has been described as compensating for temperature characteristics, the other oscillation circuit also follows frequency changes due to factors other than the temperature of one oscillation circuit. Therefore, m
s can be done.
また、水晶振動子９は単に平板状の水晶片１０としだが
、その形状ば倒又は円形「第３図（ａ）」、矩形状［同
図（ｂ）ｌＩ７て二組の電極対７．８１／Ｗに４１４等
を設’ｆ Ｔ ｆｆ ｓ４的Ｎ 合ＩＣ、ｆニア１ ｍ
Ｈ４’Ｊ 衝を防市するようにしてもＬい。The crystal resonator 9 is simply a flat crystal piece 10, but its shape can be either circular (as shown in FIG. 3(a)) or rectangular (as shown in FIG. 3(b)). /W set 414 etc.'f T ff s4's N combined IC, f near 1 m
H4'J Even if you try to prevent the opposition, it's L.
（発明の効果）
本発明は、水晶片に二組の電極対を形成して各組の電極
対に発振回路を接続し、一方の発振回路には？１′！！
償電圧発生回路を設けてその発振周波数に応答した補償
電圧を発生させ、他方の発振回路に（よ＠記補償電圧の
印加される電圧可変容１素子を設け、前記補償電圧によ
り他方の発振回路の発振周波数を制御したので、製作を
容易にして良好な補信ン品度特性を得ろ温度？ｌＴｌｌ
Ｔｌ全発振できろ。(Effects of the Invention) The present invention forms two pairs of electrodes on a crystal piece, connects an oscillation circuit to each pair of electrodes, and connects one of the oscillation circuits to the other. 1′! !
A compensation voltage generating circuit is provided to generate a compensation voltage responsive to its oscillation frequency, and the other oscillation circuit is provided with one voltage variable capacitor element to which a compensation voltage is applied, and the compensation voltage generates a compensation voltage in response to the oscillation frequency of the other oscillation circuit. By controlling the oscillation frequency, it is possible to easily manufacture and obtain good interpolation quality characteristics.
Make Tl fully oscillate.
第１図は本発明の一実施例を説明する温度？ｌｆｌ償発
振器の概略構成図、第２図は本発明の適用されろ水晶振
動子の温度特性の一例図、第３図（よ本発明に適用する
水晶片の平面図である。
第４図は従来例を説明する温度補償光振器の概略構成図
、第５図は温度特性図、第６１！Ｓ！ｙは電圧特性図で
ある。
１．１１．１２ 発振回路、２ 温度？ＩｆＩ償回路、
３．９ 水晶振動子、４ 発振用トランジスク、５ 町
変容基ダイオード、６ 補償電圧発生回路、７．８ 電
極対、１０ 水晶振動子、１３ 周波数電圧変換回路、
１４ 溝。
第１ 可
第３図
第４国
第２ｒ！ｉFIG. 1 shows the temperature range for explaining one embodiment of the present invention. FIG. 2 shows an example of the temperature characteristics of a crystal resonator to which the present invention is applied, and FIG. 3 shows a plan view of a crystal piece to which the present invention is applied. A schematic configuration diagram of a temperature compensated optical oscillator explaining a conventional example, Fig. 5 is a temperature characteristic diagram, and No. 61!S!y is a voltage characteristic diagram. 1.11.12 Oscillation circuit, 2 Temperature?IfI compensation circuit ,
3.9 crystal resonator, 4 oscillation transistor, 5 town conversion diode, 6 compensation voltage generation circuit, 7.8 electrode pair, 10 crystal resonator, 13 frequency voltage conversion circuit,
14 Groove. 1st possible 3rd figure 4th country 2r! i
Claims (1)
路を接続し、一方の発振回路には補償電圧発生回路を設
けてその発振周波数に応答した補償電圧を発生させ、他
方の発振回路には前記補償電圧の印加される電圧可変容
量素子を設け、前記補償電圧により他方の発振回路の発
振周波数を制御したことを特徴とする水晶発振器。Two pairs of electrodes are formed on a crystal piece, an oscillation circuit is connected to each pair of electrodes, one oscillation circuit is provided with a compensation voltage generation circuit to generate a compensation voltage responsive to the oscillation frequency, and the other A crystal oscillator, characterized in that one oscillation circuit is provided with a voltage variable capacitance element to which the compensation voltage is applied, and the oscillation frequency of the other oscillation circuit is controlled by the compensation voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63217943A JP2607931B2 (en) | 1988-08-31 | 1988-08-31 | Crystal oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63217943A JP2607931B2 (en) | 1988-08-31 | 1988-08-31 | Crystal oscillator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0265510A true JPH0265510A (en) | 1990-03-06 |
| JP2607931B2 JP2607931B2 (en) | 1997-05-07 |
Family
ID=16712138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63217943A Expired - Lifetime JP2607931B2 (en) | 1988-08-31 | 1988-08-31 | Crystal oscillator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2607931B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008066799A (en) * | 2006-09-04 | 2008-03-21 | Seiko Instruments Inc | Oscillator |
| JP2011135342A (en) * | 2009-12-24 | 2011-07-07 | Nippon Dempa Kogyo Co Ltd | Piezoelectric oscillator |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54173654U (en) * | 1979-05-25 | 1979-12-07 | ||
| JPS5662404A (en) * | 1979-10-26 | 1981-05-28 | Seiko Instr & Electronics Ltd | Quartz oscillating system |
-
1988
- 1988-08-31 JP JP63217943A patent/JP2607931B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54173654U (en) * | 1979-05-25 | 1979-12-07 | ||
| JPS5662404A (en) * | 1979-10-26 | 1981-05-28 | Seiko Instr & Electronics Ltd | Quartz oscillating system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008066799A (en) * | 2006-09-04 | 2008-03-21 | Seiko Instruments Inc | Oscillator |
| JP2011135342A (en) * | 2009-12-24 | 2011-07-07 | Nippon Dempa Kogyo Co Ltd | Piezoelectric oscillator |
| US8242856B2 (en) | 2009-12-24 | 2012-08-14 | Nihon Dempa Kogyo Co., Ltd. | Piezoelectric oscillator |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2607931B2 (en) | 1997-05-07 |
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