LM4663 - 2 Watt Stereo Class D Audio Power Amplifier

National Semiconductor

Datasheet Details

Part number	LM4663
Manufacturer	National Semiconductor ↗
File Size	606.24 KB
Description	2 Watt Stereo Class D Audio Power Amplifier
Datasheet	LM4663_NationalSemiconductor.pdf

The LM4663 is a fully integrated single supply, high efficiency Class D audio power amplifier solution.

a stereo headphone amplifier that delivers 80mW into a 32Ω headset with less than 0.5% THD. The LM4663 has two stereo inputs that can be selected to drive either the headphone amplifier or the Class D amplifier. All amplifiers are protected with thermal shutdown. In standby mode, the LM4663 draws an extremely low 2µA supply current. With a 4Ω load, the IC’s efficiency for a 250mW power level is 69%, reaching 83% at a power level of 2W. The IC features click and pop reduction circuitry that minim.

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Published: Mar 22, 2005 |