Getting Started
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3 Getting Started
3.1 System Hardware Overview
The PCM186xEVM can be controlled though the use of the USB using the included USB-I2X board. The
USB-I2X board connects to a PC via USB and provides digital control signals to the EVM board via I2C.
The USB-I2X board also can supply serial digital audio in and out from the PC to the EVM through an I2S
interface. When connected, the USB-I2X board also supplies all of the power required for the EVM
through USB. The PCM186xEVM also uses a PCM9211 which allows the EVM to receive and transmit
digital audio via optical/SPDIF connectors on the EVM. The PCM9211 converts the optical data to I2S
which can be routed to the PCM186xEVM.
The USB-I2X board mates to the PCM186xEVM as shown in Figure 3.
Figure 3. PCM186xEVM Mated to the USB-I2X Board
4
PCM186xEVM SLAU615–December 2014
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