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JPS5725707A - Elastic surface wave voltage control oscillator - Google Patents

Elastic surface wave voltage control oscillator

Info

Publication number
JPS5725707A
JPS5725707A JP10038780A JP10038780A JPS5725707A JP S5725707 A JPS5725707 A JP S5725707A JP 10038780 A JP10038780 A JP 10038780A JP 10038780 A JP10038780 A JP 10038780A JP S5725707 A JPS5725707 A JP S5725707A
Authority
JP
Japan
Prior art keywords
oscillation
surface wave
frequency
elastic surface
voltage control
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
JP10038780A
Other languages
Japanese (ja)
Inventor
Shuji Urabe
Ryuji Habuka
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP10038780A priority Critical patent/JPS5725707A/en
Publication of JPS5725707A publication Critical patent/JPS5725707A/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)

Abstract

PURPOSE:To obtain an output of oscillation having a clear spectrum through variation of the frequency of oscillation for an oscillating circuit using an elastic surface wave resonator and formed into an IC. CONSTITUTION:An elastic surface wave resonator G is connected to both the collector and the base of an amplifying transistor M to be connected with oscillation capacity elements C1 and C2. The collector is connected to a power supply terminal T1 through a load resistance RO, and an output of oscillation is obtained through a terminal 3. The resonator G includes a transducer TD consisting of roller screen type electrodes E1 and E2 provided on a main surface 5 of a semiconductor substrate 4 plus reflectors H1 and H2 provided at the position opposite to the electrodes E1 and E2. Furthermore a reflected frequency control electrode K is provided between the TD and the H2 to be connected with an oscillation frequency varying power supply circuit S. An electrode 8 is provided on a main surface opposite to the surface 5 and earthed. Both DC and AC voltages of the circuit S are varied to change the phase of a surface wave. Thus the frequency of oscillation can be varied.
JP10038780A 1980-07-22 1980-07-22 Elastic surface wave voltage control oscillator Pending JPS5725707A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10038780A JPS5725707A (en) 1980-07-22 1980-07-22 Elastic surface wave voltage control oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10038780A JPS5725707A (en) 1980-07-22 1980-07-22 Elastic surface wave voltage control oscillator

Publications (1)

Publication Number Publication Date
JPS5725707A true JPS5725707A (en) 1982-02-10

Family

ID=14272588

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10038780A Pending JPS5725707A (en) 1980-07-22 1980-07-22 Elastic surface wave voltage control oscillator

Country Status (1)

Country Link
JP (1) JPS5725707A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03104304A (en) * 1989-09-18 1991-05-01 Alps Electric Co Ltd Oscillation circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS511557A (en) * 1974-05-24 1976-01-08 Do Ra Bisukoosu Suisu Soc

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS511557A (en) * 1974-05-24 1976-01-08 Do Ra Bisukoosu Suisu Soc

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03104304A (en) * 1989-09-18 1991-05-01 Alps Electric Co Ltd Oscillation circuit

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