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Wolfson audio codec for mobile devices

Posted: 17 Jun 2003 ?? ?Print Version ?Bookmark and Share

Keywords:wolfson microelectronics? audio codec? wm9711l? wm9712l? ac'97?

Wolfson Microelectronics introduced WM9711L, a low-power, single-chip design with the company's audio sub-system codec capability. The device is similar to the WM9712L, and is designed for use in the latest generation of handheld computing and communication devices.

Using the company's AC'97 audio interface, it eliminates hidden extra power consumption often found in older codec designs, and avoids CPU loading for the best possible full split-rate sample rate support. It can be connected directly to mono or stereo headphones and microphones or mono speakers to reduce total component count in a system.

David Milne, CEO and managing director for Wolfson, said, "The WM9711L makes it possible to not only make a phone call, but record the call, make voice notes, record MP3 files and play them during the call."

The device operates on 1.8V to 3.6V supplies, and is supplied in a leadless, chip-scale QFN package with a 7-by-7mm profile.

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