SigmaTel acquires DDX technology, to be integrated into audio codecs

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SigmaTel acquires DDX technology, to be integrated into audio codecs [Copy link]

SigmaTel recently announced the acquisition of Apogee Technology's DDX (Direct Digital Amplification) technology, design team and intellectual property. Ron Edgerton, president and CEO of SigmaTel, said that the acquisition of DDX technology will make SigmaTel's high-definition audio solutions more complete and durable.

DDX technology is a high-efficiency Class D digital amplifier technology that can directly convert digital audio into power without the need for a digital-to-analog converter (DAC). Compared with general analog solutions, this all-digital solution achieves higher operating efficiency with a smaller design and lower power dissipation. The technology has been introduced into a multi-patented all-digital high-efficiency integrated circuit and is widely used in different types of consumer audio products.

DDX technology is a reasonable extension of SigmaTel's product line, which further improves SigmaTel's competitiveness in the high-definition personal computer audio and consumer audio markets. Combining its high-definition audio codec with DDX technology will not only further diversify its business, but also provide customers with higher integration and lower overall system costs. SigmaTel plans to integrate DDX amplifier technology into existing and future audio codecs to enable smaller products, longer battery life and lower bill of materials costs for consumer electronics manufacturers.

STMicroelectronics is currently selling products based on Apogee DDX technology and issuing relevant licenses. Companies currently using DDX technology from STMicroelectronics or Apogee include: Microsoft, Sony, Fujitsu, Kenwood, Sharp, RCA, Harmon Kardon, LG, Toshiba, JBL, Magnavox, Hitachi and Philips. Through this acquisition,

SigmaTel will obtain six patents and patent applications, as well as engineering and sales teams based in Asia. These include digital and analog integrated circuit designers, product application and software engineers.

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