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Introduction to the principle of PT2262/PT2272 codec integrated circuit

Digital Audio Volume Control Circuit using PT2258 IC and Arduino

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![PT2313E Original supply, US $ 1-100 , [PTC] Princeton Technology Corp](https://i2.wp.com/www.seekic.com/uploadfile/ic-mfg/20128145550521.jpg)
PT2313E Original supply, US $ 1-100 , [PTC] Princeton Technology Corp

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How to use arduino and P-channel & N-channel MOSFET to control voltage