Tool/software:
Hi,
I am trying to design SPO2 circuit using AFE4403. I have a question regarding pin A4 (TXN) i.e. LED driver out.
Is it possible to have 5V (externally) on pin A4 when AFE4403 is in power down mode ?

Regards,
Anurag
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Tool/software:
Hi,
I am trying to design SPO2 circuit using AFE4403. I have a question regarding pin A4 (TXN) i.e. LED driver out.
Is it possible to have 5V (externally) on pin A4 when AFE4403 is in power down mode ?

Regards,
Anurag
Hello Anurag,
What is the goal behind trying to drive the TXN pin to an external supply?
The TXN pin is powered internally by the AFE4403, and is not designed to be driven by an external supply.
Regards,
Payton