OSCILLATION CIRCUIT, INTEGRATED CIRCUIT DEVICE, AND ELECTRONIC APPARATUS

OSCILLATION CIRCUIT, INTEGRATED CIRCUIT DEVICE, AND ELECTRONIC APPARATUS

PROBLEM TO BE SOLVED: To provide an oscillation circuit, integrated circuit device and electronic apparatus, in which a clock signal can be generated by selecting a desired frequency from among a plurality of frequencies. SOLUTION: The oscillation circuit includes: first to n-th inverting circuits I...

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Bibliographische Detailangaben
1. Verfasser: FUTAMURA YOSHIHIKO
Format: Patent
Sprache:eng
Schlagworte:
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
PULSE TECHNIQUE
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide an oscillation circuit, integrated circuit device and electronic apparatus, in which a clock signal can be generated by selecting a desired frequency from among a plurality of frequencies. SOLUTION: The oscillation circuit includes: first to n-th inverting circuits INV1-INVn including a first inverting circuit to the input of which one terminal of a capacitor 10, one terminal of a first resistor 20 and one terminal of a second resistor 30 are connected, and the n-th (n is an even number of ≥2) inverting circuit to the output of which the other terminal of the capacitor 10 is connected; a first drive inverting circuit DR1 to which the output of the n-th inverting circuit INVn is input, for driving the other terminal of the first resistor 20; and a second drive inverting circuit DR2, to which the output of the n-th inverting circuit INVn is input, for driving the other terminal of the second resistor 30. COPYRIGHT: (C)2010,JPO&INPIT