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SigmaTel acquires Apogee's digital amp technology

Posted by iTech - 2005-10-06

MANHASSET, N.Y. — Mixed-signal semiconductor supplier SigmaTel Inc. has acquired the Direct Digital Amplification (DDX) technology, design team and intellectual property from Apogee Technology Inc., for an undisclosed amount of cash.

Through the acquisition, SigmaTel (Austin, Texas) will acquire six patents and patent applications, as well as an engineering and sales team located in Boston and in Asia. The DDX technology engineering team consists of digital and analog IC designers, product application and software engineers.

DDX Technology is a high efficiency, Class-D digital amplifier technology that converts digital audio directly into power without the need of a digital to analog conversion (DAC). The technology allows for smaller form factor designs and lower power dissipation than the average analog solution, claims the company.

SigmaTel expects to record a one-time charge for purchased in-process research and development expenses related to the acquisition in its fourth quarter, ending Dec. 31, 2005.

STMicroelectronics currently licenses and sells Apogee's DDX technology based products. Other companies using DDX technology from either STMicroelectronics or Apogee, include Microsoft, Sony, Fujitsu, Kenwood, Sharp, RCA, Harmon Kardon, LG, Toshiba, JBL, Magnavox, Hitachi and Philips.

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