OSCILLATION CIRCUIT AND CLOCK GENERATION CIRCUIT
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United States of America
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Issued Date -
Apr 28, 2022
app pub date -
Sep 30, 2021
filing date -
Sep 30, 2021
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Abstract
An oscillation circuit includes: a power supply generation module, configured to generate a positive temperature coefficient voltage based on a positive temperature coefficient current; and an oscillator, the positive temperature coefficient voltage serving as a power supply of the oscillator. The oscillator includes: a first ring topological structure, formed by a plurality of first inverters connected end to end and configured to transmit an oscillation signal at a first transmission speed; and a second ring topological structure, formed by a plurality of second inverters connected end to end and configured to transmit the oscillation signal at a second transmission speed. The first ring topological structure is electrically connected with the second ring topological structure, and the second transmission speed is less than the first transmission speed.
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