JPS57202106A - Oscillation circuit - Google Patents
Oscillation circuitInfo
- Publication number
- JPS57202106A JPS57202106A JP8658281A JP8658281A JPS57202106A JP S57202106 A JPS57202106 A JP S57202106A JP 8658281 A JP8658281 A JP 8658281A JP 8658281 A JP8658281 A JP 8658281A JP S57202106 A JPS57202106 A JP S57202106A
- Authority
- JP
- Japan
- Prior art keywords
- type
- power supply
- voltage
- oscillation circuit
- fet6
- 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
- 230000010355 oscillation Effects 0.000 title abstract 7
- 101100119059 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ERG25 gene Proteins 0.000 abstract 3
- 101150079361 fet5 gene Proteins 0.000 abstract 3
- 101100484930 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) VPS41 gene Proteins 0.000 abstract 2
- 230000001105 regulatory effect Effects 0.000 abstract 2
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
- H03B5/364—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 the amplifier comprising field effect transistors
Landscapes
- Oscillators With Electromechanical Resonators (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Abstract
PURPOSE:To make the oscillation stable, by designating in such a way that the (gm) when an external power supply is applied to an oscillation circuit at the application of power supply is not different from the (gm) when the circuit is driven with a regulated power supply. CONSTITUTION:When a power is supplied, a high level voltage is given to a voltage control terminal 12, an N type FET10 turns on, and a P type FET5 and an N type FET6 turn off, and a power supply voltage for a P type FET1 and an N type FET2 is an external voltage (VDD-VSS). In this case, current feedback is given with resistors 3 and 4 and the increase in the (gm) of an inverter operated as an oscillation circuit is less. When the oscillation circuit is at a normal oscillation state and a low level voltage is applied to the voltage control terminal 12, and when the N type FET10 turns off and the P type FET5 and the N type FET6 turn on, a voltage applied to the FET2 comes from an output of a regulated power supply 11. Although the voltage is lower than that at the application of power supply, since the P type FET5 and the N type FET6 turn on, and the (gm) of the inverter operated as the oscillation circuit can be made equal to the (gm) at the application of power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8658281A JPS57202106A (en) | 1981-06-05 | 1981-06-05 | Oscillation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8658281A JPS57202106A (en) | 1981-06-05 | 1981-06-05 | Oscillation circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57202106A true JPS57202106A (en) | 1982-12-10 |
| JPS6336681B2 JPS6336681B2 (en) | 1988-07-21 |
Family
ID=13890994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8658281A Granted JPS57202106A (en) | 1981-06-05 | 1981-06-05 | Oscillation circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57202106A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4956618A (en) * | 1989-04-07 | 1990-09-11 | Vlsi Technology, Inc. | Start-up circuit for low power MOS crystal oscillator |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54158840A (en) * | 1978-06-05 | 1979-12-15 | Sanyo Electric Co Ltd | Oscillation circuit |
-
1981
- 1981-06-05 JP JP8658281A patent/JPS57202106A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54158840A (en) * | 1978-06-05 | 1979-12-15 | Sanyo Electric Co Ltd | Oscillation circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4956618A (en) * | 1989-04-07 | 1990-09-11 | Vlsi Technology, Inc. | Start-up circuit for low power MOS crystal oscillator |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6336681B2 (en) | 1988-07-21 |
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