JPS5698908A - Oscillation circuit using piezoelectric oscillator - Google Patents

Oscillation circuit using piezoelectric oscillator

Info

Publication number
JPS5698908A
JPS5698908A JP189280A JP189280A JPS5698908A JP S5698908 A JPS5698908 A JP S5698908A JP 189280 A JP189280 A JP 189280A JP 189280 A JP189280 A JP 189280A JP S5698908 A JPS5698908 A JP S5698908A
Authority
JP
Japan
Prior art keywords
electrode
electrodes
taken
frequency
effective
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
JP189280A
Other languages
Japanese (ja)
Inventor
Mitsuyuki Sugita
Tetsuo Konno
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.)
Seikosha KK
Original Assignee
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 Seikosha KK filed Critical Seikosha KK
Priority to JP189280A priority Critical patent/JPS5698908A/en
Publication of JPS5698908A publication Critical patent/JPS5698908A/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
    • H03B5/326—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator the resonator being an acoustic wave device, e.g. SAW or BAW device

Landscapes

  • Oscillators With Electromechanical Resonators (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

PURPOSE:To simplify the manufacturing process and to reduce the cost, by selecting the desired electrode among the electrodes of piezoelectric oscillator and adjusting at least one of frequency-temperature characteristics and oscillating frequency. CONSTITUTION:An electrode d1 is formed at the center of one plane of a crystal oscillator D, and the electrode d2 at the center and the electrode d3 at the circumference are formed on another plane. When switching circuits S1, S2 are on and electrodes d2, d3 are taken as effective electrodes, the coupling with the profile oscillation system having negative temperature coefficient is made strong. Further, when the circuit S2 only is on and the electrode d3 is taken as the effective electrode, the coupling with the profile oscillation system is coarse and the characteristics with positive temperature coefficient are shown. Further, the electrode d2 only is taken as the effective electrode, intermediate temperature characteristics are shown. On the other hand, the adjustment of the oscillating frequency is made by using a trimmer capacitor for the load capacitance C2. Thus, by using a crystal oscillator low in the manufacture cost, the oscillation circuit having the specified oscillation frequency and temperature characteristics can be obtained.
JP189280A 1980-01-11 1980-01-11 Oscillation circuit using piezoelectric oscillator Pending JPS5698908A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP189280A JPS5698908A (en) 1980-01-11 1980-01-11 Oscillation circuit using piezoelectric oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP189280A JPS5698908A (en) 1980-01-11 1980-01-11 Oscillation circuit using piezoelectric oscillator

Publications (1)

Publication Number Publication Date
JPS5698908A true JPS5698908A (en) 1981-08-08

Family

ID=11514226

Family Applications (1)

Application Number Title Priority Date Filing Date
JP189280A Pending JPS5698908A (en) 1980-01-11 1980-01-11 Oscillation circuit using piezoelectric oscillator

Country Status (1)

Country Link
JP (1) JPS5698908A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1561285A1 (en) * 2002-11-12 2005-08-10 Nokia Corporation Crystal-less oscillator transceiver

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5124162A (en) * 1974-08-22 1976-02-26 Nippon Electric Co ONDOHOSHOGATAATSUDENHATSUSHINKI

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5124162A (en) * 1974-08-22 1976-02-26 Nippon Electric Co ONDOHOSHOGATAATSUDENHATSUSHINKI

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1561285A1 (en) * 2002-11-12 2005-08-10 Nokia Corporation Crystal-less oscillator transceiver
EP1561285A4 (en) * 2002-11-12 2008-03-19 Nokia Corp Crystal-less oscillator transceiver

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