Just a quick post about the official Nexus 7 dock and its DAC. The new Asus dock has a usb DAC/Amp that operates in slave mode which allows for charging while providing a line out. Being able to use a OTG cable and charge at the same time is another benefit. For my uses it lets me charge while using a RTL DTV dongle through a OTG cable. I might add some pictures of the internals later, it would be nice to see what chip set is used for the DAC and which, if any op-amp is used.
Edited by bootdsc - 6/23/13 at 2:49am