AUTO TRIMMING DEVICE FOR OSCILLATOR AND METHOD OF AUTO TRIMMING DEVICE FOR OSCILLATOR

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United States of America Patent

APP PUB NO 20210203327A1
SERIAL NO

16918233

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Abstract

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An auto trimming device includes an oscillator configured to generate an oscillator clock signal, a subtractor configured to receive an expected value for a target frequency and the oscillator clock signal, configured to output a difference value between the expected value and the oscillator clock signal, an index value selector configured to calculate a unit index value using the difference value and configured to detect and output a target index value from the unit index value, an index value register configured to output an oscillator trimming code corresponding to the target index value to the oscillator, and an embedded memory configured to store the oscillator trimming code as a target oscillator trimming code for the target frequency.

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Patent Owner(s)

Patent OwnerAddress
MAGNACHIP MIXED-SIGNAL LTD15F 76 JIKJI-DAERO 436BEON-GIL (JIKJI SMART TOWER) HEUNGDEOK-GU CHUNGCHEONGBUK-DO CHEONGJU-SI 28581

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
LEE, Yong Sup Cheongju-si, KR 19 130
ROH, Gil Sung Cheongju-si, KR 6 3

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