JPS5628505A - Crystal oscillating circuit - Google Patents

Crystal oscillating circuit

Info

Publication number
JPS5628505A
JPS5628505A JP10406979A JP10406979A JPS5628505A JP S5628505 A JPS5628505 A JP S5628505A JP 10406979 A JP10406979 A JP 10406979A JP 10406979 A JP10406979 A JP 10406979A JP S5628505 A JPS5628505 A JP S5628505A
Authority
JP
Japan
Prior art keywords
oscillation
oscillating circuit
stabilization
start time
crystal oscillator
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
Application number
JP10406979A
Other languages
Japanese (ja)
Other versions
JPS617043B2 (en
Inventor
Toshifusa Iwamaru
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Casio Computer Co Ltd
Original Assignee
Casio Computer Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Casio Computer Co Ltd filed Critical Casio Computer Co Ltd
Priority to JP10406979A priority Critical patent/JPS5628505A/en
Publication of JPS5628505A publication Critical patent/JPS5628505A/en
Publication of JPS617043B2 publication Critical patent/JPS617043B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L3/00—Starting of generators

Landscapes

  • Oscillators With Electromechanical Resonators (AREA)

Abstract

PURPOSE:To obtain a low-power consumption and stable oscillating circuit, by switching and connecting a one-stage inverter and three-stage inverters to the crystal oscillator in the crystal oscillating circuit at an oscillation start time and after stabilization of oscillation operation respectively. CONSTITUTION:At an oscillation start time, the feedback circuit consisting of one- stage inverter IA is connected to crystal oscillator 10 as shown in the figure; and after stabilization of oscillation operation, the feedback circuit consisting of three- stage inverters IA, IB and IC is connected to crystal oscillator 10 as shown in the figure. For these connections, inverters are switched by a switch and so on. Consequently, oscillation transfers to stable oscillation rapidly without abnormal oscillation at an oscillation start time, and the oscillation operation can be continued with low power consumption after stabilization.
JP10406979A 1979-08-17 1979-08-17 Crystal oscillating circuit Granted JPS5628505A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10406979A JPS5628505A (en) 1979-08-17 1979-08-17 Crystal oscillating circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10406979A JPS5628505A (en) 1979-08-17 1979-08-17 Crystal oscillating circuit

Publications (2)

Publication Number Publication Date
JPS5628505A true JPS5628505A (en) 1981-03-20
JPS617043B2 JPS617043B2 (en) 1986-03-04

Family

ID=14370865

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10406979A Granted JPS5628505A (en) 1979-08-17 1979-08-17 Crystal oscillating circuit

Country Status (1)

Country Link
JP (1) JPS5628505A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997037426A1 (en) * 1995-03-31 1997-10-09 National Semiconductor Corporation Pierce crystal oscillator having reliable startup for integrated circuits

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997037426A1 (en) * 1995-03-31 1997-10-09 National Semiconductor Corporation Pierce crystal oscillator having reliable startup for integrated circuits

Also Published As

Publication number Publication date
JPS617043B2 (en) 1986-03-04

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