Class D Amplifier Brings Affordable Fidelity to Consumer Audio
Silicon Laboratories Inc. today introduced the industry's first 5 Watt stereo Class D amplifier that effectively mitigates electromagnetic interference (EMI), bringing affordable fidelity to consumer audio electronics. The first member of Silicon Labs' Class D amplifier family, the new Si270x amplifier is ideal for use in a wide range of price- and noise-sensitive consumer audio products including smart phone docking stations, tabletop radios, TV sound bars and monitors, boom boxes and battery-powered radios. The Si270x amplifier uses multi-layer EMI mitigation technology to suppress traditional Class D interference at its source, enabling easier EMI compliance, AM/FM radio co-existence and smart phone compatibility in consumer audio products. Compared to existing Class D solutions, the Si270x amplifier reduces radiated interference by 10X in the EMI compliance band, by 100X in the FM radio band and by 1000X across the AM band. The Si270x Class D amplifier can enable a 2.5X increase in play time over Class A/B-based systems while using only half the number of batteries (four instead of a typical eight). For example, a consumer audio system based on the Si270x amplifier can provide up to 8.4 hours of play time using four AA alkaline batteries.
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Silicon Laboratories Inc. http://www.silabs.com
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