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Wolfson releases a high-definition audio chip for smartphones

There's no need to shout
Tue May 01 2012, 17:50

CHIP DESIGNER Wolfson has announced its WM5102 high definition audio system-on-chip (SoC) for use in smartphones.

Wolfson's audio chips are found in smartphones, tablets and numerous other audio hardware but the firm's next generation WM5102 SoC is being pitched at smartphones and tablets using the SLIMbus and I2S interfaces. The firm has implemented transmit and receive path noise reduction and echo cancellation and claims it can reduce background noise by up to 90 per cent.

The firm's WM5102 provides a respectable signal-to-noise ratio of 102dB and has 50 MIPS of processing power. Wolfson claims the WM5102 not only is physically smaller than its rivals but uses fewer parts, meaning device manufacturers can reduce the size of the circuit board and the bill of materials (BOM).

Duncan Macadie, product line manager for Audio Hubs at Wolfson Microelectronics said, "By boosting the DSP [digital signal processing] capability on our Audio Hubs to a level unavailable in the market today, and at the same time retaining ultra-low power performance, we are able to integrate transmit noise reduction to work seamlessly with other audio processing functions. Customers have been looking for this level of integration to significantly reduce their BOM cost. By adding a SLIMbus interface we enable customers to use this audio platform across all their products, regardless of application processor choice."

Wolfson said its WM5102 audio SoC is sampling in a W-CSP package. µ


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