JPS5720003A - Oscillator - Google Patents

Oscillator

Info

Publication number
JPS5720003A
JPS5720003A JP9460580A JP9460580A JPS5720003A JP S5720003 A JPS5720003 A JP S5720003A JP 9460580 A JP9460580 A JP 9460580A JP 9460580 A JP9460580 A JP 9460580A JP S5720003 A JPS5720003 A JP S5720003A
Authority
JP
Japan
Prior art keywords
oscillator
mos semiconductor
frequency
constitution
adjusted
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
JP9460580A
Other languages
Japanese (ja)
Other versions
JPS6258563B2 (en
Inventor
Yoshio Hattori
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 JP9460580A priority Critical patent/JPS5720003A/en
Publication of JPS5720003A publication Critical patent/JPS5720003A/en
Publication of JPS6258563B2 publication Critical patent/JPS6258563B2/ja
Granted 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

Landscapes

  • Oscillators With Electromechanical Resonators (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)

Abstract

PURPOSE:To obtain an oscillator which is low in power consumption and superior in mass-productivity while frequency-adjusted with high precision, by using an MOS semiconductor variable capacity element as the load capacity of a piezoelectric oscillator. CONSTITUTION:An oscillating circuit consists of an amplifier 1, a feedback resistance 2, a piezoelectric oscillator 3, and load capacitors 4 and 5. In this constitution, either or both of the capacitors 4 and 5 are composed of MOS semiconductor variable capacity elements and a shift in oscillation frequency from a desired value due to the variance of the oscillator 2 with respect to manufacture is adjusted by varying the capacities of the elements. Consequently, the adjustment of the oscillation frequency is made by an electric signal, so the control over it is facilitated extremely. Therefore, the precision of the frequency adjustment is improved remarkably and this process is automated by machines. Further, the MOS semiconductor capacity element consumes no electric power, so that an oscillator whose power consumption is low is realized.
JP9460580A 1980-07-11 1980-07-11 Oscillator Granted JPS5720003A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9460580A JPS5720003A (en) 1980-07-11 1980-07-11 Oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9460580A JPS5720003A (en) 1980-07-11 1980-07-11 Oscillator

Publications (2)

Publication Number Publication Date
JPS5720003A true JPS5720003A (en) 1982-02-02
JPS6258563B2 JPS6258563B2 (en) 1987-12-07

Family

ID=14114875

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9460580A Granted JPS5720003A (en) 1980-07-11 1980-07-11 Oscillator

Country Status (1)

Country Link
JP (1) JPS5720003A (en)

Also Published As

Publication number Publication date
JPS6258563B2 (en) 1987-12-07

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