OSCILLATOR AND SETTING METHOD THEREFOR

OSCILLATOR AND SETTING METHOD THEREFOR

PROBLEM TO BE SOLVED: To provide an oscillator low in cost, high in reliability and capable of executing highly precise oscillation, while a temperature characteristic capable of being can easily be set. SOLUTION: In this oscillator, the temperature measured by a thermistor 1 is converted into a dig...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MATSUDA OSAMU, OTSUKI MANABU, TATEISHI SUMIHIRO
Format: Patent
Sprache:eng
Schlagworte:
AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
GENERATION OF NOISE BY SUCH CIRCUITS
GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING,BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN ANON-SWITCHING MANNER
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide an oscillator low in cost, high in reliability and capable of executing highly precise oscillation, while a temperature characteristic capable of being can easily be set. SOLUTION: In this oscillator, the temperature measured by a thermistor 1 is converted into a digital signal by an A/D converter 2 and is outputted to a CPU 3. The CPU 3 outputs a frequency range stored in accordance with a temperature threshold equivalent to the measured temperature stored in a memory 4 to a D/A converter 5. The D/A converter 5 changes the frequency, which VCXO 6 oscillates.