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Audio processor suits portable comms devices

Posted: 02 Apr 2008 ?? ?Print Version ?Bookmark and Share

Keywords:high-fidelity audio? processor? DSP? ASIC?

ON Semiconductor has rolled out the latest member in its BelaSigna family of audio processors, formerly offered by AMI Semiconductor. BelaSigna 300, an ultralow-power high-fidelity audio processor targets portable communication devices such as mobile phones, handsfree kits for automobiles and wireless headsets.

BelaSigna 300 is claimed to be the ideal solution for communication device manufacturers and audio processing algorithm developers looking to improve audio clarity. The device's unique, patented dual-core architecture enables multiple advanced audio algorithms, such as echo cancellation and noise reduction, to run simultaneously while maintaining ultralow power consumption.

A 24bit open-programmable DSP core and a highly configurable accelerator signal processing engine enables BelaSigna 300 to deliver the flexibility of a generic DSP with the power consumption and size of a fixed function ASIC. The addition of advanced analog audio inputs combined with the 24bit signal path allows for superior audio quality. BelaSigna 300 can be designed into new or existing designs with little or no impact on the overall form-factor of the communication device.

"Moving to a 24bit datapath architecture combined with an overall reduction in power consumption will allow our customers to perform more signal processing," said David Coode manager of ON Semiconductor's audio solutions team. "While portable electronics form-factors continue to shrink, sound quality will continue to improve."

To complement BelaSigna 300, ON Semiconductor is also releasing an advanced, full-duplex echo cancelling algorithm, specifically designed for the new BelaSigna 300 architecture. The algorithm is applicable to headset and handsfree kit manufacturers.

The BelaSigna 300 audio processor is available in an RoHS compliant 3.63mm x 2.68mm WLCSP housing. Samples are available now, with production scheduled for Q2 08.

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