Power Electronics

Eval Board Manages Audio and Power For Processors

Dialog Semiconductor’s DA9034-EVB evaluation board for the DA9034 IC enables designers to quickly configure designs based on Marvell PXA3xx application processors. The board provides an audio and power management solution for Marvell PXA3xx-based products and is driven using a standard Windows-based graphical user interface (GUI) via a PC’s USB interface.

The board allows developers can evaluate the technical performance of the DA9034 highly integrated audio and power management IC. The DA9034-EVB can also be used in conjunction with a PXA3xx processor system to develop power management and audio control routines and verify complete designs. The board provides a reference pc board layout and uses components typically found in designs which are optimized for low build height of less than 1.2 mm and minimum pc board area.

The DA9034 IC integrates more than 50 mixed signal functions on a single chip, providing regulated supplies for the PXA3xx processor, memory and peripheral devices as well as supporting Li-ion battery charging, touch screen interfacing and LED driving. Voice and high-fidelity audio codecs are also provided. The DA9034 supports Dynamic Voltage Management for both switching and linear regulators. This technique, with Dialog’s Smart Mirror linear regulators and its flexible implementation of the dedicated PXA3xx processor Power I2C (PI2C), improves the battery life of end products. All power supplies and control signals are accessible on terminal posts and the DA9034-EVB can be used to power a complete PXA3xx platform design during development.

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