LM49270 Datasheet (National Semiconductor) - Filterless 2.2W Stereo Class D Audio Subsystem

LM49270, Filterless 2.2W Stereo Class D Audio Subsystem

The LM49270 is a fully integrated audio subsystem designed for stereo multimedia applications.

The LM49270 combines a 2.2W stereo Class D amplifier with a 155mW stereo headphone amplifier, volume control, headphone sense, and National’s unique 3D sound enhancement into a single device.

The LM49270 u

LM49270 Features

* National’s Output Capacitor-less (OCL) architecture that eliminates the output coupling capacitors required by traditional headphone amplifiers. The IC features a headphone sense input (HPS) that automatically detects the presence of a headphone and configures the device accordingly. The LM49270 can