Features and Benefits
- On-board AD1938 codec with 4 analog inputs and 8 analog outputs
- Stereo S/PDIF input and output
- Self boot EEPROM memory
This user guide describes the design, setup, and operation of the EVAL-ADAU1452REVBZ evaluation board. This board evaluates and develops the software for the ADAU1452 and ADAU1462 SigmaDSP® processors. The ADAU1452 and the ADAU1462 are functionally identical, except that the ADAU1462 has more program and data memory. Selecting this component in the software instructs the compiler to limit the amount of allocated memory to match the ADAU1462.
All other procedures and instructions in this user guide are applicable to both the ADAU1462 and ADAU1452.
The EVAL-ADAU1452REVBZ evaluation board provides access to the digital serial audio ports of the ADAU1452 and some of the general-purpose input/outputs (GPIOs). An analog input and output is provided by the AD1938 codec included in the evaluation kit.
The ADAU1452 core is programmed using the Analog Devices, Inc., SigmaStudio® software, which interfaces to the evaluation board via the universal serial bus interface (USBi). The on-board electronically erasable programmable read-only memory (EEPROM) can be programmed for self boot mode.
The evaluation board is powered by a 6 V dc supply, which is regulated to the voltages required on the board. The printed circuit board (PCB) is a 4-layer design with a ground plane and a power plane on the inner layers. The evaluation board includes connectors for external analog inputs and outputs and optical Sony/Philips digital interface (S/PDIF) interfaces. The integrated oscillator circuit and the on-board, 12.288 MHz passive crystal (Y1) provides the master clock.
For full details, see the ADAU1452 and AD1938 data sheets, which must be used in conjunction with this user guide when using the EVAL-ADAU1452REVBZ evaluation board.