JPS616904A - Crystal oscillator - Google Patents

Crystal oscillator

Info

Publication number
JPS616904A
JPS616904A JP12822984A JP12822984A JPS616904A JP S616904 A JPS616904 A JP S616904A JP 12822984 A JP12822984 A JP 12822984A JP 12822984 A JP12822984 A JP 12822984A JP S616904 A JPS616904 A JP S616904A
Authority
JP
Japan
Prior art keywords
crystal
unit
crystal oscillator
crystal resonator
resistor
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
Application number
JP12822984A
Other languages
Japanese (ja)
Inventor
Hirofumi Kawashima
宏文 川島
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Electronic Components Ltd
Original Assignee
Seiko Electronic Components Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Seiko Electronic Components Ltd filed Critical Seiko Electronic Components Ltd
Priority to JP12822984A priority Critical patent/JPS616904A/en
Publication of JPS616904A publication Critical patent/JPS616904A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03BGENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/30Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
    • H03B5/32Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator

Landscapes

  • Oscillators With Electromechanical Resonators (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

PURPOSE:To improve the long term reliability of a crystal oscillator by sealing a crystal resonator under vacuum and sealing a crystal resonator unit, a capacitor, a resistor and an IC element under inactive gas. CONSTITUTION:The crystal resonator unit 11, the IC12, the capacitors 13, 14 and the resistor 15 are arranged on a board 10 on a base 9. The crystal resonator of the unit 11 is sealed under vacuum. The unit 11, the IC12, the capacitors 13, 14 and the resistor 15 are sealed under inactive gas atmosphere. Thus, the long term reliability of the crystal oscillator is improved.

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に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to crystal oscillators.

〔従来技術および発明が解決しようとする問題点〕[Prior art and problems to be solved by the invention]

現在、発振器を構成するために使用されている水晶振動
子としてはATカット水晶振動子が多用されている。こ
の理由は、まず第1に周波数温度特性に優れていること
。4MHz帯以上の任意の周波数を容易に得ることがで
きる等の特徴を有するためである。しかし、とのATカ
ット振動子を使った発振器は大気中、あるいはN7等の
不活性ガス中で振動子、コンデンサー、抵抗素子等を封
止するため、水晶振動子のCI値(Crystal工m
pedance )が高くなり、この結果、消費電流が
多くなるという不具合を生じていた。又、これらを解決
するために、水晶振動子、コンデンサー1そして抵抗素
子等を一緒に一真空中で封止する。即ち、コールドウェ
ルド封正方式が採用されているが、コスト高になるとい
う欠点がありた。そこで、本発明は前記の欠点を除失す
るものであり、換言するならば、消費電流の少ない、し
かも、安価な水晶発振器を提供するものである。
At present, AT-cut crystal resonators are often used as crystal resonators for constructing oscillators. The reason for this is, first of all, that it has excellent frequency-temperature characteristics. This is because it has characteristics such as being able to easily obtain any frequency in the 4 MHz band or higher. However, in the case of an oscillator using an AT-cut resonator, the CI value of the crystal resonator (Crystal engineering
pedance) becomes high, resulting in a problem of increased current consumption. In order to solve these problems, the crystal resonator, capacitor 1, resistance element, etc. are sealed together in a vacuum. That is, a cold weld sealing method has been adopted, but it has the disadvantage of high cost. Therefore, the present invention aims to eliminate the above-mentioned drawbacks; in other words, it provides a crystal oscillator that consumes less current and is inexpensive.

〔実施例〕〔Example〕

以下、図面にβって本発明の詳細な説明する。 Hereinafter, the present invention will be described in detail with reference to the drawings.

第1図は本発明の水晶振動子ユニットで、キャップ1と
ベース2から成り、このユニットは真空中で封止されて
いて、この中にはGTカット水晶振動子等の水晶振動子
が収納されている。(図示されていない)即ち、この振
動子ユニットは一般的な製造方法にて、製造されるので
、特性的には大変に安定したものが得られる。又、この
ユニットの状態で良否の判断をするため、即ち、発振器
を構成する以前に振・動子を選別することができるので
、歩留向上を図ることが出来る。第2図は本発明の水晶
発振器の平面図を示す。ベース9は抵抗溶接、あるいは
、半田シール可能な金属材料から成り、4隅にはベース
9の金属材料とは電気的に絶縁されているリード線4.
5,6.7が接続されている。この絶縁にはガラスを介
して一般的には行なう。(図示されてない)そして、ベ
ース9の上の基板10上には水晶振動子ユニット11、
工(1!12.コンデンサーi3,14.抵抗15が配
置されている。抵抗15は水晶振動子ユニット11の支
持リード線3に並列に接続され、コンデンサー13.1
4はIC内部で(図示されてない)水晶振動子の両端子
・、即ち、支持リード線3に接続され、一方の端子はリ
ード線5に接続されて、このリード線5はGNDになっ
ている。又、リード線4は電源電圧VDDが印加される
ように接続されていて、通常は1.5 〜12 の電圧
が印加されるようにICは設計されている。更に、リー
ド線6は出力端子で、水晶振動子の共振周波数とICの
分局段等によって得゛られる出力は決まる。従って、第
2図の発振器はこの構成に於いて充分に低消費電流で動
作することが可能である。しかし、本発明はさらに、コ
ンデンサー、や抵抗素子の経時変化を極力小さく押える
ために、ベース9をN2等の不活性ガス中にて抵抗溶接
あるいは半田シール等の方法にて封止している。第3図
はこの様子を示し、第2図の側面図である。ベース9の
上にはキャップ8が抵抗溶接あるいは半田付は等によっ
て封止されている。これにより水晶振動子ユニットは勿
論であるが、コンデンサー、抵抗、IC素子の信頼性を
充分に長期間維持することができた。
Fig. 1 shows a crystal resonator unit of the present invention, which consists of a cap 1 and a base 2. This unit is sealed in a vacuum, and a crystal resonator such as a GT cut crystal resonator is housed inside. ing. (Not shown) That is, since this vibrator unit is manufactured by a general manufacturing method, it can have very stable characteristics. Furthermore, since the quality of the unit is determined based on the state of the unit, that is, the vibrators can be selected before configuring the oscillator, so that the yield can be improved. FIG. 2 shows a plan view of the crystal oscillator of the present invention. The base 9 is made of a metal material that can be resistance welded or solder-sealed, and the four corners have lead wires 4. electrically insulated from the metal material of the base 9.
5, 6.7 are connected. This insulation is generally done through glass. (Not shown) On the substrate 10 on the base 9 is a crystal resonator unit 11,
(1!12. Capacitors i3, 14. Resistor 15 are arranged. Resistor 15 is connected in parallel to support lead wire 3 of crystal resonator unit 11, and capacitor 13.1
4 is connected to both terminals of a crystal resonator (not shown) in the IC, that is, to the support lead wire 3, and one terminal is connected to the lead wire 5, and this lead wire 5 is connected to GND. There is. Further, the lead wire 4 is connected so that a power supply voltage VDD is applied thereto, and the IC is designed so that a voltage of 1.5 to 12 is usually applied thereto. Further, the lead wire 6 is an output terminal, and the output obtained is determined by the resonance frequency of the crystal resonator, the division stage of the IC, etc. Therefore, the oscillator shown in FIG. 2 can operate with sufficiently low current consumption in this configuration. However, in the present invention, the base 9 is further sealed in an inert gas such as N2 by a method such as resistance welding or solder sealing in order to suppress the deterioration of the capacitor and the resistance element over time as much as possible. FIG. 3 shows this situation and is a side view of FIG. 2. A cap 8 is sealed onto the base 9 by resistance welding, soldering, or the like. As a result, the reliability of not only the crystal resonator unit but also the capacitor, resistor, and IC element could be maintained for a sufficiently long period of time.

〔発明の効果〕〔Effect of the invention〕

以上、述べたように、本発明はまず第1に水晶振動子を
真空中で封止を行なうので、CI値の非常に小さい水晶
振動子ユニットを得ることができる。それ故、第2図の
ような水晶発振器を構成した場合に、大変に消費電流の
少ない発振器が得られる。同時に、本発明の発振器は第
2図のように、最後の不活性ガス中での封止をする以前
に、水晶発振器としての特性を調べることができるので
、この時点で良否の判断が可能で事前に不良品を取り除
くことができるという長所をも有する。従って、安価に
製造できる。更に、水晶振動子ユニット、コンデンサー
、抵抗、そして工C素子は不活性ガス中で封止されるの
で長期信頼性に優れた水晶発振器を提供することができ
、工業的価値は著しく大きいものである。
As described above, since the present invention first seals the crystal resonator in a vacuum, it is possible to obtain a crystal resonator unit with a very small CI value. Therefore, when a crystal oscillator is configured as shown in FIG. 2, an oscillator with extremely low current consumption can be obtained. At the same time, as shown in Figure 2, the characteristics of the oscillator of the present invention as a crystal oscillator can be checked before it is sealed in an inert gas, so it is possible to judge whether it is good or bad at this point. It also has the advantage of being able to remove defective products in advance. Therefore, it can be manufactured at low cost. Furthermore, since the crystal oscillator unit, capacitor, resistor, and C element are sealed in an inert gas, it is possible to provide a crystal oscillator with excellent long-term reliability, which is of great industrial value. .

【図面の簡単な説明】[Brief explanation of drawings]

第1図はGTカット水晶振動子等を収納した水晶振動子
ユニットを示す斜視図、 第2図は水晶振動子ユニット、コンデンサー。 抵抗、そして工C累子からなる水晶発振器の平面図、 第3図は第2図の側面図を示す。 1.8・・・・・・キャップ 2.9・・・・・・ベース 4.5,6.7・・・・・・リード線 11・・・・・・・・・水晶振動子ユニット12・・・
・・・・・・I C 15,14・・・コンデンサー 15・・・・・・・・・抵 抗 10・・・・・・・・・基 板 以  上
Figure 1 is a perspective view of the crystal unit that houses the GT-cut crystal unit, etc. Figure 2 is the crystal unit and capacitor. A plan view of a crystal oscillator consisting of a resistor and a crystal oscillator, and FIG. 3 shows a side view of FIG. 1.8...Cap 2.9...Base 4.5, 6.7...Lead wire 11...Crystal unit 12 ...
...I C 15, 14...Capacitor 15...Resistor 10...More than board

Claims (1)

【特許請求の範囲】[Claims] 水晶振動子、IC、コンデンサー、並びに、抵抗素子か
ら成る水晶発振器に於いて、前記水晶振動子は真空中で
封止され、且つ、他の構成素子は不活性ガス雰囲気中で
封止されていることを特徴とする水晶発振器。
In a crystal oscillator consisting of a crystal oscillator, an IC, a capacitor, and a resistance element, the crystal oscillator is sealed in a vacuum, and the other components are sealed in an inert gas atmosphere. A crystal oscillator characterized by:
JP12822984A 1984-06-21 1984-06-21 Crystal oscillator Pending JPS616904A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12822984A JPS616904A (en) 1984-06-21 1984-06-21 Crystal oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12822984A JPS616904A (en) 1984-06-21 1984-06-21 Crystal oscillator

Publications (1)

Publication Number Publication Date
JPS616904A true JPS616904A (en) 1986-01-13

Family

ID=14979683

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12822984A Pending JPS616904A (en) 1984-06-21 1984-06-21 Crystal oscillator

Country Status (1)

Country Link
JP (1) JPS616904A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013016676A1 (en) 2012-10-31 2014-04-30 Shima Seiki Mfg., Ltd. Method for knitting a knitted fabric

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51127657A (en) * 1975-04-28 1976-11-06 Seiko Instr & Electronics Ltd Standard signal generator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51127657A (en) * 1975-04-28 1976-11-06 Seiko Instr & Electronics Ltd Standard signal generator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013016676A1 (en) 2012-10-31 2014-04-30 Shima Seiki Mfg., Ltd. Method for knitting a knitted fabric

Similar Documents

Publication Publication Date Title
JP2000077941A (en) Temperature compensated quartz oscillator and its manufacture
JP2009253409A (en) Crystal oscillator
JPS616904A (en) Crystal oscillator
JP2005223640A (en) Package, surface mounted piezoelectric oscillator using the same, and frequency adjusting method therefor
JPS6110303A (en) Crystal oscillator
JPH09191226A (en) Crystal oscillator
JP3537643B2 (en) Electronic components
JPS616905A (en) Crystal oscillator
JP2000031773A (en) Crystal vibrator of surface mount type
JPS6150413A (en) Manufacture of piezoelectric vibrator
JP7306095B2 (en) Piezoelectric device and method for manufacturing piezoelectric device
JP7306096B2 (en) Piezoelectric device and method for manufacturing piezoelectric device
JPS62242405A (en) Composite electronic parts
JP3068150B2 (en) Airtight container for electronic components and piezoelectric vibrator using the same
JPH11284483A (en) Crystal resonator
JP2632022B2 (en) Piezoelectric oscillator
JPH06314928A (en) Piezoelectric oscillator
JPS59194528A (en) Quartz oscillator
JP3556111B2 (en) Package for electronic component, electronic component assembly using the same, and method of manufacturing electronic component assembly
JP3234397B2 (en) Manufacturing method of piezoelectric oscillator
JP2003168949A (en) Surface-mounting small crystal resonator
JPH0435513A (en) Surface mounting crystal resonator
JPH0372707A (en) Piezoelectric composite parts
JPH01149510A (en) Piezo-oscillator
JPH09116337A (en) Module having piezoelectric device