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What is the function of the VMID pin in NUC505? How to design the circuit diagram?  Datum:2018-01-15

VMID is the microphone reference voltage, which must be connected to the MICN when the microphone is configured for single-ended input.

As shown, the suggested components are C1=220pF, C2=1uF, R1=680oh~2.2kohm, R2=0ohm.

 

If it is differential input, the connection is the same as the connection on the NUC505 Tiny Board, as shown below.

Produkte: Mikrocontroller ,Arm Cortex-M4-MCUs ,NUC505-Serie
Applikationen:
Funktion: Peripherals,Connectivity,I2S
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