So I need to use USB High Speed for a very simple application — an audio interface. This requires almost no processing power besides USB transport of multiple channels (8?) of high fidelity audio (192 or possible 96 kHz). These will then be sent out to DACs and in from ADCs using any form that works best (maybe I2S?) As such, using something like a UC3A3 is probably over kill, I don't need 144 pins and won't be using basically any of its features besides the USB.
I'm looking for something small and minimalistic that matches these requirements. I saw that maybe devices that don't natively support USB High Speed can just be attached to an external PLL maybe? I'm not certain of this.
This doesn't need to be a single chip solution. I don't even really need to use an AVR. Anything works. I just want there to be as little wasted space/pins as possible.