SGM2820
DESCRIPTION
The SGM2820 is a high efficiency, low EMI, filterless, Class-D audio amplifier with auto-recovering short-circuit protection. It operates from 2.5V to 5.5V supply voltage. When powered with 5V supply voltage, the SGM2820 is capable of delivering 3W into a 4Ω load or 1.7W into an 8Ω load, with 10% THD+N. As a Class-D audio amplifier, the SGM2820 features
88% efficiency and 70d B PSRR at 217Hz which make the device ideal for battery-powered high-quality audio applications. A key benefit of the SGM2820 over typical Class-D audio power amplifiers is that it generates much less EMI emissions, thus greatly simplifying the system design for portable applications. The device includes the over-current and short-circuit protections with auto-recovery, which ensures the device can be operated safely and reliably without system interaction.
APPLICATIONS
Mobile Phones Portable Navigation Devices Multimedia Internet Devices Portable Speakers
FEATURES
- Filterless Class-D Operation
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