JPS5595405A - Crystal oscillation circuit - Google Patents
Crystal oscillation circuitInfo
- Publication number
- JPS5595405A JPS5595405A JP262479A JP262479A JPS5595405A JP S5595405 A JPS5595405 A JP S5595405A JP 262479 A JP262479 A JP 262479A JP 262479 A JP262479 A JP 262479A JP S5595405 A JPS5595405 A JP S5595405A
- Authority
- JP
- Japan
- Prior art keywords
- oscillation circuit
- gate
- earth
- source
- power voltage
- 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
- 230000010355 oscillation Effects 0.000 title abstract 6
- 239000013078 crystal Substances 0.000 title abstract 4
- 239000003990 capacitor Substances 0.000 abstract 3
- 230000003321 amplification Effects 0.000 abstract 1
- 238000003199 nucleic acid amplification method Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION 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
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
- H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
- H03B5/36—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device
Landscapes
- Oscillators With Electromechanical Resonators (AREA)
Abstract
PURPOSE:To reduce low the power consumption of a crystal oscillation circuit and also to stabilize high it by forming a fixed circuit by using SIT. CONSTITUTION:Capacitor C1 is connected between the gate and source of SITT1 operating in the forward direction to the gate, capacitor C2 is interposed between the source and earth, and crystal vibrator Q is further connected between the gate and earth. Then, resistance R1 is connected between power voltage VDD and the gate, and NPN transistor T2 connected to the power voltage at its base is connected between the source and earth. The amplification part of a crystal oscillation circuit formed in this way is composed of SITT1, NPN transistor T2 and resistance R1, and the oscillation circuit is of the Colpitts type using capacitors C1 and C2. Consequently, since its power voltage can be reduced low through characteristics of SIT, the power consumption of the oscillation circuit can be reduced and at the same time, its oscillation frequency can be stabilized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP262479A JPS5595405A (en) | 1979-01-12 | 1979-01-12 | Crystal oscillation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP262479A JPS5595405A (en) | 1979-01-12 | 1979-01-12 | Crystal oscillation circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5595405A true JPS5595405A (en) | 1980-07-19 |
Family
ID=11534546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP262479A Pending JPS5595405A (en) | 1979-01-12 | 1979-01-12 | Crystal oscillation circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5595405A (en) |
-
1979
- 1979-01-12 JP JP262479A patent/JPS5595405A/en active Pending
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