JPS5452993A - Oscillator circuit for semiconductor integrated - Google Patents
Oscillator circuit for semiconductor integratedInfo
- Publication number
- JPS5452993A JPS5452993A JP11968777A JP11968777A JPS5452993A JP S5452993 A JPS5452993 A JP S5452993A JP 11968777 A JP11968777 A JP 11968777A JP 11968777 A JP11968777 A JP 11968777A JP S5452993 A JPS5452993 A JP S5452993A
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- constant
- voltage
- oscillator circuit
- earth
- 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
Landscapes
- Bipolar Integrated Circuits (AREA)
Abstract
PURPOSE: To secure a constant oscillaton frequency even to the fluctuation of the power voltage, by supplying the voltage to be supplied to two transistors forming an oscillator circuit through the constant voltadge circuit whose voltage is constant when viewed from the substrae of IC.
CONSTITUTION: Transistor 1 and 2 which are emitter-coupled to each other, resistance 22 for constant current to be connected to the emitter, diode 8 and 9 to secure stability between the base and the earth, and others are installed to IC element 20 which forms an oscillator circuit. Then feedback rsistance 3 is connected between terminal A and B of IC element 20; the +B power source is connected to terminal C; terminal D is connected to the earth along with one end of the oscil lating turning circuit via capacitor 21; and terminal E is connected to the earth respectively. At the same time, constant current resistance 22 connected to tran sistor 1 and 2 provided inside element 20 is connected to substrate S of element 20. Under these conditions, the bias is applied to the base and the collector of transistor 1 and 2, and thus the voltage change is controlled for substrate S
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11968777A JPS5452993A (en) | 1977-10-04 | 1977-10-04 | Oscillator circuit for semiconductor integrated |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11968777A JPS5452993A (en) | 1977-10-04 | 1977-10-04 | Oscillator circuit for semiconductor integrated |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5452993A true JPS5452993A (en) | 1979-04-25 |
Family
ID=14767557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11968777A Pending JPS5452993A (en) | 1977-10-04 | 1977-10-04 | Oscillator circuit for semiconductor integrated |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5452993A (en) |
-
1977
- 1977-10-04 JP JP11968777A patent/JPS5452993A/en active Pending
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