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PSoC 5, 3 & 1 MCU

RyYo_1406951
Contributor II
‎Aug 07, 2018 07:29 PM

CY8C21512 IMO周波数によるCapSense動作への影響

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IMOは(Min)22.8MHz～(Max)25.2MHzまで周波数が振れるかと思います。

①IMO=22.8MHzの時、②IMO=25.2MHzの時で、CapSenseを動作させた場合、
取得できるRaw値・Diff値には変化はありますでしょうか？

IMOが速い場合は、RawCount値が高くとれるなどございましたらご教授ください。

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HirotakaT_91
Moderator
Moderator
‎Aug 09, 2018 03:38 AM

Re: CY8C21512 IMO周波数によるCapSense動作への影響

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Rb, IDACに関係なく、RawCountとFsは比例します。

そのため、RawCountとIMOは比例します。

従って、より高い周波数をIMOで設定すれば、より高いRawCountが得られることになります。

Diff Countについても、IMOが異なるときにより高い値が得られます。

Hirotaka Takayama

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