Zoom UAC-2 Audio Converter

It’s a nice, small USB audio interface. Interestingly, it’s the same as the Thunderbolt version, just with an USB-PCIe interface bolted on. The internal PCIe bus is bridged over USB and terminates in a Windows driver that provides a virtual PCIe interface.

Interfaces:

  • USB 3
  • analog audio
  • MIDI

Some Chips:

  • Freescale IMX6S5DVM10AB / IMX6S5DVM / IMX6S5 / IMX6: ARM miKrocontroller
  • Broadcom/Avago USB 3380: PCIe-USB 3 converter (Super Speed USB)
  • Texas Instruments PCM4202: 24-bit, 216 kHz ADC
  • Asahi-Kasei AK4396: 24-bit, 216 kHz DAC
audio interface

audio interface

audio IO PCB

audio IO PCB

audio IO PCB backside

audio IO PCB backside

controller

controller

PCIe-USB 3 bridge

PCIe-USB 3 bridge

folded metal frame

folded metal frame