No idea but I wouldn't assume anything as this adapter is only intended to connect a camera to your device for transferring photos.Can you use the Lightning USB adapter below to connect to an outboard DAC?
In other words, does iPhone 5 transmit digital audio data through this adapter?
This is what I plan to do:
iPhone 5> USB Adapter> USB cable > DAC input
Not sure on the USB dongle. The lightning to 30 pin does tho