JPS5657310A - Voltage control quartz oscillator - Google Patents

Voltage control quartz oscillator

Info

Publication number
JPS5657310A
JPS5657310A JP13407279A JP13407279A JPS5657310A JP S5657310 A JPS5657310 A JP S5657310A JP 13407279 A JP13407279 A JP 13407279A JP 13407279 A JP13407279 A JP 13407279A JP S5657310 A JPS5657310 A JP S5657310A
Authority
JP
Japan
Prior art keywords
frequency
voltage
elements
oscillator
quartz oscillator
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
JP13407279A
Other languages
Japanese (ja)
Inventor
Kazuo Adachi
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP13407279A priority Critical patent/JPS5657310A/en
Publication of JPS5657310A publication Critical patent/JPS5657310A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/027—Generators characterised by the type of circuit or by the means used for producing pulses by the use of logic circuits, with internal or external positive feedback
    • H03K3/03—Astable circuits
    • H03K3/0307—Stabilisation of output, e.g. using crystal

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Oscillators With Electromechanical Resonators (AREA)

Abstract

PURPOSE:To secure the steady oscillation over a wide range of frequency, by using an LPF in the feedback circuit of the oscillator. CONSTITUTION:The reference voltage is fixed at a certain level with application of the control voltage V to the terminal (a). Thus the capacity of the variable capacity diode 2 is controlled. As a result, the resonance frequency is decided for the loop including the quartz oscillator 1, TTLNAND elements 3 and 4 plus LPF7 and 8, respectively. And then the frequency of the oscillator output O is controlled by the voltage V. In such constitution of circuit, an LPF consisting of the resistance R and the capacitor C is provided to the feeback circuit of the elements 3 and 4. Then the unsteady working width is reduced for the elements 3 and 4, thus reducing the waveform distortion at the points C and D. As a result, the unsteady state can be solved for the voltage control quartz oscillator to increase frequency variable range.
JP13407279A 1979-10-16 1979-10-16 Voltage control quartz oscillator Pending JPS5657310A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13407279A JPS5657310A (en) 1979-10-16 1979-10-16 Voltage control quartz oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13407279A JPS5657310A (en) 1979-10-16 1979-10-16 Voltage control quartz oscillator

Publications (1)

Publication Number Publication Date
JPS5657310A true JPS5657310A (en) 1981-05-19

Family

ID=15119718

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13407279A Pending JPS5657310A (en) 1979-10-16 1979-10-16 Voltage control quartz oscillator

Country Status (1)

Country Link
JP (1) JPS5657310A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5025452B2 (en) * 1971-08-13 1975-08-23
JPS5223247A (en) * 1975-08-15 1977-02-22 Yoshihiro Toma Oscillator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5025452B2 (en) * 1971-08-13 1975-08-23
JPS5223247A (en) * 1975-08-15 1977-02-22 Yoshihiro Toma Oscillator

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