Usb powered mini v4 with spdif out

DIY Products&Projects
1

Hi,
I want to power my up2stream mini v4 via usb (mainly cause I use as input source the usb dac only). This works in general (I get wifi, analog ouput works fine).

But when connecting the spdif-out board, I don’t get a signal. The red led of the optical connector remains off.
When I connect the mini v4 to a 5V power supply, the spdif-output works.

Do you know a workaround so that I could use the spdif-out board when the mini v4 is powered via usb?

2

Hi, the USB Audio input has some conflicts with the SPDIF out in this system, so it’s not available when you select USB DAC mode.