18 July 2011

Audio codec optimises performance, prevents speaker damage

Maxim Integrated Products has introduced a new stereo audio codec, designed to improve audio performance and prevent speaker damage.

The MAX98089 features Maxim's proprietary FlexSound audio technology, which is said to optimise the signal level and frequency response, while limiting the maximum distortion and power at the output. It comes with a comprehensive toolkit for improving loudspeaker playback performance and voice transmission.

A graphical user interface (GUI) is available to ease the design in of the product. To minimise the number of discrete components required in the solution, integrated jack detection is designed to detect the insertion and removal of accessories as well as button presses. The DAC to headphone idle power consumption is rated at 5.6mW. According to Maxim, this represents a 15% improvement compared to other solutions and extends battery life.

The MAX98089 is targeted at portable multimedia applications such as tablets, netbooks and mobile phones. Example software drivers are available for Linux and other OS platforms. Automatic gain control and a noise gate have been implemented to optimise the signal level of the microphone's input signals. The codec is also designed to eliminate the external discrete components found in competing devices.

The MAX98089 is available in a 3.8 x 3.3mm, 63bump WLP or a 7 x 7mm, 56pin TQFN. It is fully specified for the -40 to 85°C extended temperature range.

Author
Laura Hopperton

Supporting Information

Websites
http://www.maxim-ic.com

Companies
Maxim Integrated Products UK Ltd

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