Hi Expert,
1.u3 and U16 are necessary?

2.the adc input are necessary?

3.u15 is necessary?

4.
Is support Audio AC97?
Thanks
Daniel
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Hi Expert,
1.u3 and U16 are necessary?

2.the adc input are necessary?

3.u15 is necessary?

4.
Is support Audio AC97?
Thanks
Daniel
Hello Daniel,
Thank you for the query.
Can you help me understand if this is a custom board ? If not please reference the board you are referring.
Q1. Since the circuit is not complete i will not be able to comment. This is application dependent. I assume the open drain gate has pull up somewhere on the board.
Q2. I assume you want to use the ADC. If yes this is required. Since the schematics is not complete, i am not sue on the VDD_ADC level used.
Q3. Use of buffer is application dependent, We would recommend to have the device for better performance.
Q4. Please elaborate your question.
Regards,
Sreenivasa