CH609525GA3 - Oscillator circuit for an electronic timepiece - Google Patents

Oscillator circuit for an electronic timepiece Download PDF

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Publication number
CH609525GA3
CH609525GA3 CH1113775A CH1113775A CH609525GA3 CH 609525G A3 CH609525G A3 CH 609525GA3 CH 1113775 A CH1113775 A CH 1113775A CH 1113775 A CH1113775 A CH 1113775A CH 609525G A3 CH609525G A3 CH 609525GA3
Authority
CH
Switzerland
Prior art keywords
components
oscillator circuit
frequency
oscillator
capacitive element
Prior art date
Application number
CH1113775A
Other versions
CH609525B (en
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
Publication of CH609525B publication Critical patent/CH609525B/en
Application filed filed Critical
Priority to CH1113775A priority Critical patent/CH609525GA3/en
Priority to DE2638055A priority patent/DE2638055C3/en
Priority to JP51102496A priority patent/JPS5227341A/en
Publication of CH609525GA3 publication Critical patent/CH609525GA3/en

Links

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
    • H03B5/366—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 and comprising means for varying the frequency by a variable voltage or current
    • 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

Abstract

The integrated oscillator circuit, associated with a piezoelectric resonator, is provided with a device enabling the frequency of the oscillator circuit to be adjusted in steps. This device consists of a plurality of components for adjusting frequency. Each of these components comprises a capacitive element associated with a control means having a control electrode serving in the triggering of the capacitive element. The components are connected together and to at least one of the phase-shifting capacitors of the oscillator in such a way that they modify the frequency-determining capacitance when they are triggered. The components are made on the same substrate and with the same technology as the components of the oscillator enclosed, with its resonator, in a casing consisting of a protective hood and an insulating base carrying connection terminals for the control electrodes accessible from outside the casing. <IMAGE>
CH1113775A 1975-08-28 1975-08-28 Oscillator circuit for an electronic timepiece CH609525GA3 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CH1113775A CH609525GA3 (en) 1975-08-28 1975-08-28 Oscillator circuit for an electronic timepiece
DE2638055A DE2638055C3 (en) 1975-08-28 1976-08-24 Crystal oscillator with frequency setting device
JP51102496A JPS5227341A (en) 1975-08-28 1976-08-27 Integrated oscillating circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1113775A CH609525GA3 (en) 1975-08-28 1975-08-28 Oscillator circuit for an electronic timepiece

Publications (2)

Publication Number Publication Date
CH609525B CH609525B (en)
CH609525GA3 true CH609525GA3 (en) 1979-03-15

Family

ID=4370442

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1113775A CH609525GA3 (en) 1975-08-28 1975-08-28 Oscillator circuit for an electronic timepiece

Country Status (3)

Country Link
JP (1) JPS5227341A (en)
CH (1) CH609525GA3 (en)
DE (1) DE2638055C3 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5652906A (en) * 1979-10-04 1981-05-12 Toshiba Corp Oscillating circuit
FR2502864B1 (en) * 1981-03-24 1986-09-05 Asulab Sa INTEGRATED CIRCUIT FOR AN ADJUSTABLE FREQUENCY OSCILLATOR
JPS58111505A (en) * 1981-12-25 1983-07-02 Seiko Epson Corp Crystal oscillation circuit
CA1199689A (en) * 1983-09-21 1986-01-21 Terence N. Thomas Phase locked loop variable oscillator with switched capacitors
DE3437492A1 (en) * 1984-10-12 1986-04-17 Kieninger & Obergfell, Fabrik für technische Laufwerke und Apparate GmbH & Co, 7742 St Georgen Electrical time-piece movement with an electronic oscillator
IT1185568B (en) * 1985-05-17 1987-11-12 Face Standard Ind CIRCUIT DEVICE TO FACILITATE CHANNELING IN A FREQUENCY SYNTHESIZER
JP2869998B2 (en) * 1989-03-03 1999-03-10 セイコーエプソン株式会社 Piezoelectric oscillator
JPH0264224U (en) * 1989-10-19 1990-05-15
JP2005123426A (en) 2003-10-17 2005-05-12 Matsushita Electric Ind Co Ltd Voltage-controlled variable capacitor

Also Published As

Publication number Publication date
CH609525B (en)
JPS5227341A (en) 1977-03-01
DE2638055B2 (en) 1978-05-24
DE2638055C3 (en) 1980-06-04
DE2638055A1 (en) 1977-03-10

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