JPS5460546A - Crystal oscillator circuit - Google Patents
Crystal oscillator circuitInfo
- Publication number
- JPS5460546A JPS5460546A JP12739777A JP12739777A JPS5460546A JP S5460546 A JPS5460546 A JP S5460546A JP 12739777 A JP12739777 A JP 12739777A JP 12739777 A JP12739777 A JP 12739777A JP S5460546 A JPS5460546 A JP S5460546A
- Authority
- JP
- Japan
- Prior art keywords
- oscillator circuit
- crystal oscillator
- frequency
- circuit
- capacitor
- 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
- 239000003990 capacitor Substances 0.000 abstract 3
- 239000013078 crystal Substances 0.000 abstract 2
- 230000010355 oscillation Effects 0.000 abstract 2
- 239000002131 composite material Substances 0.000 abstract 1
Landscapes
- Oscillators With Electromechanical Resonators (AREA)
Abstract
PURPOSE:To obtain a high-accuracy and high-reliability oscillator circuit by giving an analogous frequency adjustment to the crystal oscillator circuit containing an amplifier circuit. CONSTITUTION:The C. MOS oscillator circuit consists of feedback resistance 21, crystal oscillator 24, inverter 23, input variable capacitor 22 and output capacitor 25 respectively. Programable power source 28 is controlled based on the temperature data detected through detector circuit 29, and the current necessary for correction of oscillation frequency is supplied to the base of transistor TR27 to change the equivalent impedance between the collector and the emitter. Thus, the composite impedance changes virtually for capacitor 25 and TR27 which function to decide the frequency of the oscillator circuit, ensuring the adjustment of the oscillation frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12739777A JPS5460546A (en) | 1977-10-24 | 1977-10-24 | Crystal oscillator circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12739777A JPS5460546A (en) | 1977-10-24 | 1977-10-24 | Crystal oscillator circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5460546A true JPS5460546A (en) | 1979-05-16 |
Family
ID=14958974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12739777A Pending JPS5460546A (en) | 1977-10-24 | 1977-10-24 | Crystal oscillator circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5460546A (en) |
-
1977
- 1977-10-24 JP JP12739777A patent/JPS5460546A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20040921 |
|
| A521 | Written amendment |
Effective date: 20041216 Free format text: JAPANESE INTERMEDIATE CODE: A523 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20050315 |
|
| A313 | Final decision of rejection without a dissenting response from the applicant |
Effective date: 20050801 Free format text: JAPANESE INTERMEDIATE CODE: A313 |
|
| A02 | Decision of refusal |
Effective date: 20050906 Free format text: JAPANESE INTERMEDIATE CODE: A02 |