JPS63165913U - - Google Patents
Info
- Publication number
- JPS63165913U JPS63165913U JP5744687U JP5744687U JPS63165913U JP S63165913 U JPS63165913 U JP S63165913U JP 5744687 U JP5744687 U JP 5744687U JP 5744687 U JP5744687 U JP 5744687U JP S63165913 U JPS63165913 U JP S63165913U
- Authority
- JP
- Japan
- Prior art keywords
- crystal oscillator
- overtone crystal
- overtone
- oscillation
- inverter
- 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 12
- 230000010355 oscillation Effects 0.000 claims description 8
- 230000001939 inductive effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Oscillators With Electromechanical Resonators (AREA)
Description
第１図は本考案の一実施例としてのオーバトー
ン水晶発振回路を示す回路構成図、第２図ａおよ
びｂはそれぞれ第１図実施例の変形例を示す回路
構成図、第３図は従来形の一例としての水晶発振
回路の回路構成図、第４図は従来形の他の例とし
ての水晶発振回路の回路構成図、第５図は従来形
のさらに他の例としての水晶発振回路の回路構成
図、である。
（符号の説明）、１１……オーバトーン水晶発
振子、１２……インバータ、１２Ａ……ナンドゲ
ート、１３，１４，１７……キヤパシタ、１５…
…抵抗、１６，１８……インダクタ、１８ａ……
水晶フイルタ、ＶＤＤ……電源電圧、Ｆ０……発
振信号。
FIG. 1 is a circuit configuration diagram showing an overtone crystal oscillation circuit as an embodiment of the present invention, FIGS. 2a and b are circuit configuration diagrams each showing a modification of the embodiment in FIG. Figure 4 is a circuit diagram of a crystal oscillation circuit as an example of the conventional type, Figure 5 is a circuit diagram of a crystal oscillation circuit as another example of the conventional type. It is a circuit configuration diagram. (Explanation of symbols), 11... Overtone crystal oscillator, 12... Inverter, 12A... NAND gate, 13, 14, 17... Capacitor, 15...
...Resistor, 16, 18...Inductor, 18a...
Crystal filter, VDD... power supply voltage, F 0 ... oscillation signal.
Claims (1)
水晶発振子からの発振信号を反転させて該オーバ
トーン水晶発振子側に戻すインバータ１２，１２
ａと、 該オーバトーン水晶発振子と共に出力同調回路
を構成する容量性素子１３，１４と、 該オーバトーン水晶発振子と該インバータによ
り構成されるループ内を流れる発振電流に対し、
該オーバトーン水晶発振子の所定の次数のオーバ
トーン振動数よりも低い振動数の発振電流成分を
ろ波して該ループの外に放出する誘導性素子１８
，１８ａと、 を備えてなるオーバトーン水晶発振回路。[Claims for Utility Model Registration] An overtone crystal oscillator 11, an inverter 12 which is supplied with a power supply voltage VDD, inverts the oscillation signal from the overtone crystal oscillator, and returns it to the overtone crystal oscillator. 12
a, the capacitive elements 13 and 14 that together with the overtone crystal oscillator constitute an output tuning circuit, and the oscillation current flowing in the loop formed by the overtone crystal oscillator and the inverter,
an inductive element 18 that filters an oscillation current component having a frequency lower than the overtone frequency of a predetermined order of the overtone crystal oscillator and releases it to the outside of the loop;
, 18a, and an overtone crystal oscillation circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5744687U JPS63165913U (en) | 1987-04-17 | 1987-04-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5744687U JPS63165913U (en) | 1987-04-17 | 1987-04-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63165913U true JPS63165913U (en) | 1988-10-28 |
Family
ID=30887154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5744687U Pending JPS63165913U (en) | 1987-04-17 | 1987-04-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63165913U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51130149A (en) * | 1975-05-06 | 1976-11-12 | Nec Corp | Oscillation circuit |
-
1987
- 1987-04-17 JP JP5744687U patent/JPS63165913U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51130149A (en) * | 1975-05-06 | 1976-11-12 | Nec Corp | Oscillation circuit |
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