JPS553264A - Crystal oscillation circuit - Google Patents

Crystal oscillation circuit

Info

Publication number
JPS553264A
JPS553264A JP7601078A JP7601078A JPS553264A JP S553264 A JPS553264 A JP S553264A JP 7601078 A JP7601078 A JP 7601078A JP 7601078 A JP7601078 A JP 7601078A JP S553264 A JPS553264 A JP S553264A
Authority
JP
Japan
Prior art keywords
oscillation circuit
connection point
capacitor
saturation state
crystal oscillation
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
Application number
JP7601078A
Other languages
Japanese (ja)
Inventor
Masaaki Kato
Kojiro Tanaka
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 Instruments Inc
Original Assignee
Seiko Instruments Inc
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 Instruments Inc filed Critical Seiko Instruments Inc
Priority to JP7601078A priority Critical patent/JPS553264A/en
Publication of JPS553264A publication Critical patent/JPS553264A/en
Pending 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 decrease the output amplitude by using the MOSFET operating at all times under the saturation state, and thus to reduce the charge/discharge current of the capacitor at the output side in order to realize the low power consumption for the oscillation circuit. CONSTITUTION:The amplifier consisting of MOSFETTP2 and TN2 which always operate under the saturation state is provided between the drain of P-type MOSFETTP1 foming the C-MOS inverter and the drain of N-type MOSFETTN1. And one end of crystal oscillator Q and capacitor C2 are connected to the common connection point of the gates of FETTP1 and TN1 as well as to the connection point of resistance R2 formed by MOSFET; and capacitor C1 and the other end of Q are connected to the common connection point of FETTP2 and TN2 as well as to the connection point of R2 via resistance R1. Thus, the crystal oscillation circuit is formed. Also, the crystal oscillation circuit is formed by using either one of FETTP2 and TN2 operating under the saturation state.
JP7601078A 1978-06-23 1978-06-23 Crystal oscillation circuit Pending JPS553264A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7601078A JPS553264A (en) 1978-06-23 1978-06-23 Crystal oscillation circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7601078A JPS553264A (en) 1978-06-23 1978-06-23 Crystal oscillation circuit

Publications (1)

Publication Number Publication Date
JPS553264A true JPS553264A (en) 1980-01-11

Family

ID=13592839

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7601078A Pending JPS553264A (en) 1978-06-23 1978-06-23 Crystal oscillation circuit

Country Status (1)

Country Link
JP (1) JPS553264A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5785779A (en) * 1980-11-12 1982-05-28 Hitachi Ltd Preventive circuit for free-run of elevator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5785779A (en) * 1980-11-12 1982-05-28 Hitachi Ltd Preventive circuit for free-run of elevator

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