HD Audio hub with SLIMbus and I2S interfaces for mobiles

April 25, 2013 // By Graham Prophet
Wolfson Microelectronics' WM8997 is a flexible High Definition (HD) Audio Hub with simultaneous SLIMbus and I2S interfaces designed to provide outstanding HD Audio for smartphones and other portable devices in a cost-effective solution.

Wolfson Microelectronics' WM8997 is a flexible High Definition (HD) Audio Hub with simultaneous SLIMbus and I 2S interfaces designed to provide outstanding HD Audio for smartphones and other portable devices in a cost-effective solution.

The WM8997 high performance HD Audio Hub delivers 102 dB signal-to-noise ratio (SNR) at 6.5 mW DAC to headphone playback power consumption, resulting in clear and crisp voice calls, as well as sharp audio recordings and music playback. Its simultaneous SLIMbus and I 2S functionality provides platform architecture flexibility enabling standalone audio digital signal processors (DSPs) and ensures that the same audio solution can be re-used across any platform irrespective of the audio interface, saving development costs and time, and delivering an easily-integrated, future-proof solution.

The WM8997 digital core combines fixed-function signal processing blocks, including filters, equalisers, dynamic processors and sample rate converters, with a fully-flexible, all-digital audio mixing and routing engine for outstanding use case flexibility. It also enables the use of voice and gesture control, as well as a digital stylus. The WM8997 supports up to four microphone inputs, each either analogue or pulse density modulation (PDM) digital.

The latest addition the Audio Hub family, it is a flexible, cost-effective solution for mobile devices, while delivering the ultimate HD Audio performance for voice calls, recording audio, or listening to music on a mobile device; it comes in a W-CSP package.

Wolfson, www.wolfsonmicro.com