JPS5472945A - Oscillator circuit - Google Patents

Oscillator circuit

Info

Publication number
JPS5472945A
JPS5472945A JP14045177A JP14045177A JPS5472945A JP S5472945 A JPS5472945 A JP S5472945A JP 14045177 A JP14045177 A JP 14045177A JP 14045177 A JP14045177 A JP 14045177A JP S5472945 A JPS5472945 A JP S5472945A
Authority
JP
Japan
Prior art keywords
circuit
oscillator circuit
small
circuits
equivalent
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
JP14045177A
Other languages
Japanese (ja)
Other versions
JPS6034847B2 (en
Inventor
Tatsuji Asakawa
Shinji Morozumi
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP14045177A priority Critical patent/JPS6034847B2/en
Publication of JPS5472945A publication Critical patent/JPS5472945A/en
Publication of JPS6034847B2 publication Critical patent/JPS6034847B2/en
Expired legal-status Critical Current

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
    • H03B5/364—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)

Abstract

PURPOSE:To realize the effective use for the crystal oscillator circuit of an electronic wristwatch with small power consumption and a low oscillation start voltage, by composing the unit of a main oscillator circuit, level converter circuit and output amplifier circuit and by forming a resistor of a FET. CONSTITUTION:This circuit is composed of main oscillator circuit A, level converter circuit C and output amplifier circuit B, and for the purpose of the suitability of the integration together with divider, driver and other circuits of the electronic wristwatch, feedback resistance Rf is replaced with equivalent P-channel transistor (P-Tr) 3, and bias resistance Rb of P-Tr1 is with equivalent N-Tr2. Further, since circuits A, C and B all operate nearly at the threshold level of the Tr, the current consumption is small, and since the matching with the logical level of a complementary circuit represented by a complementary inverter is perfect, the stability can be obtainred; and this operates with exctremely small oscillation amplitude, so that its oscillation start voltage can be lowered.
JP14045177A 1977-11-22 1977-11-22 crystal oscillation circuit Expired JPS6034847B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14045177A JPS6034847B2 (en) 1977-11-22 1977-11-22 crystal oscillation circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14045177A JPS6034847B2 (en) 1977-11-22 1977-11-22 crystal oscillation circuit

Publications (2)

Publication Number Publication Date
JPS5472945A true JPS5472945A (en) 1979-06-11
JPS6034847B2 JPS6034847B2 (en) 1985-08-10

Family

ID=15268917

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14045177A Expired JPS6034847B2 (en) 1977-11-22 1977-11-22 crystal oscillation circuit

Country Status (1)

Country Link
JP (1) JPS6034847B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5652913A (en) * 1979-07-13 1981-05-12 Ebauches Electroniques Sa Ac signal amplifier
JPS5717820U (en) * 1980-07-07 1982-01-29
JPS6342205A (en) * 1986-08-07 1988-02-23 Nec Corp Oscillation circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5652913A (en) * 1979-07-13 1981-05-12 Ebauches Electroniques Sa Ac signal amplifier
JPS5717820U (en) * 1980-07-07 1982-01-29
JPS6342205A (en) * 1986-08-07 1988-02-23 Nec Corp Oscillation circuit

Also Published As

Publication number Publication date
JPS6034847B2 (en) 1985-08-10

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