EVAL-ADAU1861

Product Details

The user guide details the design and setup of the EVAL-ADAU1861EBZ evaluation board. The EVAL-ADAU1861EBZ provides all the analog and digital inputs and outputs on the ADAU1861. The ADAU1861 core is controlled by Analog Devices, Inc., Lark Studio graphical user interface (GUI) software, which interfaces with the EVAL-ADAU1861EBZ by a USB connection. The EVAL-ADAU1861EBZ can be powered by the USB bus or by a single 12 V supply. Any of these supplies are regulated to the voltages required on the EVAL-ADAU1861EBZ.

The printed circuit board (PCB) of the EVAL-ADAU1861EBZ is a 4-layer design, with a ground plane and a power plane on the inner layers. The EVAL-ADAU1861EBZ contains connectors for external microphones and speakers. The main clock of ADAU1861 can be provided externally or by the on-board 24.576 MHz oscillator or crystal.

The EVAL-ADAU1861EBZ contains a microphone array, aim for beamforming. A 16-channel, high performance, 192 kHz, 24-bit digital-to-analog converter (DAC) is used as the analog output for audio tuning. For compatibility with 3.3 V inputs and outputs, all digital audio interfaces can be transferred to 3.3 V inputs and outputs from 1.8 V with a level shifter.

For full details on the ADAU1861, see the ADAU1861 data sheet, which must be consulted with the user guide when using the EVAL-ADAU1861EBZ evaluation board.