よくある質問

よくある質問

Can the microphone input with headset control functions (e.g. play/stop, volume increase and decrease) be connected to both the Codec ADC (MIC input) and normal SAR ADC input pins in the NuMicro® NUC505 series? Can a key or which key is pressed be effectively and accurately determined by a specific voltage level?  日付:2016-11-29

Connect the microphone input with headset control functions (e.g. play/stop, volume increase and decrease) to both the Codec ADC (MIC input) and normal SAR ADC input pins in the NuMicro® NUC505 series. The following figure shows the application circuit connection.



The following table shows the SAR ADC samples that are actually measured when a key or no key is pressed. It is possible to determine whether a key or which key is pressed according to a different SAR ADC value.

 

製品: マイクロコントローラ ,Arm Cortex-M4 MCU ,NUC505 シリーズ ,NUC505DL13Y ,NUC505DLA ,NUC505DS13Y ,NUC505DSA ,NUC505YLA2Y ,NUC505YLA ,NUC505YO13Y
アプリケーション: 向け携帯機器
機能: Peripherals,Analog,ADC
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