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PDM Digital-Input Class D Audio Amplifier Mitigates EMI

October 21, 2009 Interference Technology Amplifiers, Filters / Ferrites, Products, Technologies

Analog Devices Inc. recently announced its PDM (pulse density modulation) digital-input Class D audio amplifier for handset and other portable applications, such as portable media players and laptop computers. The SSM2517 Class D audio amplifier combines a filterless mono Class D amplifier with an audio DAC in a tiny 1.5 mm x 1.5 mm package – the same size as some existing analog-input Class D amplifiers. The integrated DAC and sigma-delta modulator architecture minimizes system design challenges by mitigating EMI (electromagnetic interference).Visit the Analog Devises Web site to learn more.

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Interference Technology

Established in 1970, Interference Technology helps EMI/EMC engineers find solutions to their various testing, design, application and regulatory issues by publishing articles, news and other practical content. We help suppliers in these areas to find the right customers for their components, materials, test equipment and services through a wide range of marketing services, including lead generation, branding, market research and events. The publication is available in various printed and electronic media formats, with readers in over 60 countries. We also publish issues in local languages in China, Japan and Europe.