JPS6385915U - - Google Patents
Info
- Publication number
- JPS6385915U JPS6385915U JP18125486U JP18125486U JPS6385915U JP S6385915 U JPS6385915 U JP S6385915U JP 18125486 U JP18125486 U JP 18125486U JP 18125486 U JP18125486 U JP 18125486U JP S6385915 U JPS6385915 U JP S6385915U
- Authority
- JP
- Japan
- Prior art keywords
- side electrode
- surface acoustic
- output side
- amplifier
- acoustic wave
- 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
- 238000010897 surface acoustic wave method Methods 0.000 claims description 12
- 239000000758 substrate Substances 0.000 claims description 3
- 230000002238 attenuated effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000010363 phase shift Effects 0.000 description 1
Landscapes
- Oscillators With Electromechanical Resonators (AREA)
Description
第１図はこの考案の一実施例を示すブロツク図
、第２図は従来の弾性表面波発振器の一例を示す
ブロツク図。
２は圧電体基板、３ａは入力側電極、３ｂは出
力側電極、４ｂは出力側電極の正電気端子、５ｂ
は出力側電極の負電気端子、１１は差動増幅器、
１２ａは差動増幅器の正入力端子、１２ｂは差動
増幅器の負入力端子。尚、図中同一符号は同一ま
たは相当部分を示す。
FIG. 1 is a block diagram showing an embodiment of this invention, and FIG. 2 is a block diagram showing an example of a conventional surface acoustic wave oscillator. 2 is a piezoelectric substrate, 3a is an input side electrode, 3b is an output side electrode, 4b is a positive electric terminal of the output side electrode, 5b
is the negative electrical terminal of the output side electrode, 11 is the differential amplifier,
12a is a positive input terminal of the differential amplifier, and 12b is a negative input terminal of the differential amplifier. Note that the same reference numerals in the figures indicate the same or corresponding parts.
補正 昭６２．１．７
実用新案登録請求の範囲を次のように補正する
。Amendment January 7, 1982 The scope of claims for utility model registration is amended as follows.
【実用新案登録請求の範囲】
圧電体基板に振動電圧を加えて弾性表面波を発
生させる入力側電極と、上記圧電体基板上に上記
入力側電極とは別に配置され上記圧電体基板の弾
性表面波に対応して発生する振動電圧を導出する
出力側電極とを有する弾性表面波遅延線あるいは
２端子対弾性表面波共振器の上記出力側電極の導
出する電気振動を増幅器により増幅して上記入力
側電極に加えるフイードバツク回路により上記入
力側電極から上記出力側電極まで弾性表面波が伝
搬する際に発生する移相量によつて定まる周波数
の電気振動を発生する弾性表面波発振器において
、
上記増幅器を差動増幅器により構成し、上記出
力側電極の正電気端子を上記差動増幅器の正入力
端子に、上記出力側電極の負電気端子を上記差動
増幅器の負入力端子にそれぞれ接続することによ
つて上記入力側電極から上記出力側電極へ電気回
路的に結合した信号が上記差動増幅器によつて充
分に減衰されるようにしたことを特徴とする弾性
表面波発振器。[Claims for Utility Model Registration] An input-side electrode that applies an oscillating voltage to a piezoelectric substrate to generate surface acoustic waves; A surface acoustic wave delay line or a two-terminal pair surface acoustic wave resonator having an output side electrode that derives an oscillating voltage generated in response to a surface wave or an electric vibration derived from the output side electrode of a two-terminal pair surface acoustic wave resonator is amplified by an amplifier. In a surface acoustic wave oscillator that generates electrical vibration at a frequency determined by the amount of phase shift generated when a surface acoustic wave propagates from the input side electrode to the output side electrode by a feedback circuit applied to the input side electrode, the amplifier is configured by a differential amplifier, and the positive electrical terminal of the output side electrode is connected to the positive input terminal of the differential amplifier, and the negative electrical terminal of the output side electrode is connected to the negative input terminal of the differential amplifier. Therefore, a surface acoustic wave oscillator characterized in that a signal coupled from the input side electrode to the output side electrode in an electric circuit is sufficiently attenuated by the differential amplifier.
Claims (1)
生させる入力側電極と、上記圧電体基板上に上記
入力側電極から離れた位置に配置され上記圧電体
基板の弾性表面波に対応して発生する振動電圧を
導出する出力側電極と、この出力側電極の導出す
る電気振動を増幅器により増幅して上記入力側電
極に加えるフイードバツク回路により上記入力側
電極から上記出力側電極まで弾性表面波が伝搬す
るに要する時間によつて定まる周波数の電気振動
を発生する弾性表面波発振器において、 上記増幅器を差動増幅器により構成し、上記出
力側電極の正電気端子を上記差動増幅器の正入力
端子に、上記出力側電極の負電気端子を上記差動
増幅器の負入力端子にそれぞれ接続することによ
つて上記入力側電極から上記出力側電極へ電気回
路的に結合した信号が上記差動増幅器によつて充
分に減衰されるようにしたことを特徴とする弾性
表面波発振器。[Claims for Utility Model Registration] An input side electrode that generates surface acoustic waves by applying an oscillating voltage to a piezoelectric substrate; An output side electrode that derives an oscillating voltage generated in response to a surface acoustic wave, and a feedback circuit that amplifies the electrical vibration derived from this output side electrode using an amplifier and applies it to the input side electrode, generates the above output from the input side electrode. In a surface acoustic wave oscillator that generates electrical vibration with a frequency determined by the time required for a surface acoustic wave to propagate to a side electrode, the amplifier is configured by a differential amplifier, and the positive electric terminal of the output side electrode is connected to the A signal coupled from the input side electrode to the output side electrode in an electric circuit by connecting the negative electric terminal of the output side electrode to the negative input terminal of the differential amplifier, respectively, to the positive input terminal of the dynamic amplifier. is sufficiently attenuated by the differential amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986181254U JPH0419850Y2 (en) | 1986-11-26 | 1986-11-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986181254U JPH0419850Y2 (en) | 1986-11-26 | 1986-11-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6385915U true JPS6385915U (en) | 1988-06-04 |
| JPH0419850Y2 JPH0419850Y2 (en) | 1992-05-07 |
Family
ID=31125954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986181254U Expired JPH0419850Y2 (en) | 1986-11-26 | 1986-11-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0419850Y2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004040509A (en) * | 2002-07-03 | 2004-02-05 | Seiko Epson Corp | Oscillation circuit and electronic apparatus using the oscillation circuit |
| JP2017085281A (en) * | 2015-10-26 | 2017-05-18 | セイコーエプソン株式会社 | Oscillation module, electronic apparatus, and mobile body |
| JP2020099102A (en) * | 2020-03-19 | 2020-06-25 | セイコーエプソン株式会社 | Oscillation module, electronic apparatus, and mobile body |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50137460A (en) * | 1974-04-18 | 1975-10-31 |
-
1986
- 1986-11-26 JP JP1986181254U patent/JPH0419850Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50137460A (en) * | 1974-04-18 | 1975-10-31 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004040509A (en) * | 2002-07-03 | 2004-02-05 | Seiko Epson Corp | Oscillation circuit and electronic apparatus using the oscillation circuit |
| JP2017085281A (en) * | 2015-10-26 | 2017-05-18 | セイコーエプソン株式会社 | Oscillation module, electronic apparatus, and mobile body |
| US10581379B2 (en) | 2015-10-26 | 2020-03-03 | Seiko Epson Corporation | Integrated circuit layout for an oscillation module |
| JP2020099102A (en) * | 2020-03-19 | 2020-06-25 | セイコーエプソン株式会社 | Oscillation module, electronic apparatus, and mobile body |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0419850Y2 (en) | 1992-05-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0213488B2 (en) | ||
| JPS5835404B2 (en) | Surface acoustic wave parametric device | |
| JPS6385915U (en) | ||
| US4233530A (en) | Elastic surface wave device | |
| JP3255248B2 (en) | Surface acoustic wave oscillator | |
| JPH01280904A (en) | Oscillator | |
| JPH0737368Y2 (en) | Piezoelectric oscillation circuit | |
| JPS6111370B2 (en) | ||
| JPH07118611B2 (en) | Oscillator circuit | |
| JPS6115609B2 (en) | ||
| JPS6318073Y2 (en) | ||
| JPH0520005Y2 (en) | ||
| JPH01233903A (en) | Overtone crystal oscillation circuit | |
| JPS6016091Y2 (en) | oscillation circuit | |
| JP2001044797A (en) | Balanced input/output piezoelectric filter | |
| JPS5937838Y2 (en) | Percussion instrument sound generation circuit | |
| JPH0344912U (en) | ||
| SU124008A1 (en) | The method of obtaining the product of the amplitudes of two harmonic oscillations of the same frequency | |
| JPS63283213A (en) | Voltage controlled oscillator | |
| JPH0476709U (en) | ||
| JPH03103611U (en) | ||
| JPH01288005A (en) | Piezoelectric vibrator element | |
| JPS6461156A (en) | Multi-frequency deviation modulation | |
| JPS60194806A (en) | Crystal oscillation circuit | |
| KR980006829A (en) | Resonant frequency variable surface acoustic wave device |