Tool/software:
Hi David,
In a related thread, I understood that the TDP142 AUX signal has AC coupling on the Sink and Source sides.
(+) TDP142: AC coupling of AUX pin - Interface forum - Interface - TI E2E support forums
1) If the TDP142 circuit is installed on the Source side,
if the Source side is turned off and the Sink side is turned on,
there is a concern that the voltage pulled up on the Sink side will be input to the TDP142 and leak current will flow to the Source side.
Is this a problem?
In fact, since it is pulled up at 100 kΩ,
protection diode will not cause Vcc+0.5 V (Vcc=0 V), but just in case.
2) If both Source and Sink implement TDP142, TDP142 will be DC coupled, but is there any problem?
Best Regards,
Ryusuke
