NanoPI Duo2 Audio output power, input second mic?
Posted: Tue Jan 26, 2021 8:01 am
Hi there!
Does anybody know the max. current the analog audio outputs can supply?
Even the Allwinner Datasheet doesn't spec' the details for some I/Os.
The H3 SoC has two mic inputs but the GPIO pins seems to provide only one (differential MIC_P and _N).
Are there any accessible solder pads somewhere on the board for the second mic.?
Thanks in advance
T.
Does anybody know the max. current the analog audio outputs can supply?
Even the Allwinner Datasheet doesn't spec' the details for some I/Os.
The H3 SoC has two mic inputs but the GPIO pins seems to provide only one (differential MIC_P and _N).
Are there any accessible solder pads somewhere on the board for the second mic.?
Thanks in advance
T.