QUARTZ OSCILLATION CIRCUIT AND QUARTZ OSCILLATION INTEGRATED CIRCUIT DEVICE

In a quartz oscillation circuit, electric current flowing through a quartz oscillator is reduced. Resistors Rg and Rd are provided respectively in any of paths formed by an output terminal, a capacitance element Cd and a power supply terminal VDD of a CMOS inverter 2 and any of paths formed by an in...

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Bibliographic Details
Main Authors HASEGAWA EIICHI, OTSUKA HARUHIKO
Format Patent
LanguageEnglish
Published 08.11.2001
Edition7
Subjects
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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Summary:In a quartz oscillation circuit, electric current flowing through a quartz oscillator is reduced. Resistors Rg and Rd are provided respectively in any of paths formed by an output terminal, a capacitance element Cd and a power supply terminal VDD of a CMOS inverter 2 and any of paths formed by an input terminal, a capacitance element Cg and a power supply terminal VDD, thereby reducing a current flowing through a quartz oscillator. In particular, the total value of the resistors Rd and Rg is determined in a range of from 10 OMEGA to 320 OMEGA, thereby reducing a quartz current and obtaining a required negative resistance.
Bibliography:Application Number: US19990263295