LM4949 - Stereo Class D Audio Subsystem

National Semiconductor

Datasheet Details

Part number	LM4949
Manufacturer	National Semiconductor ↗
File Size	1.80 MB
Description	Stereo Class D Audio Subsystem
Datasheet	LM4949_NationalSemiconductor.pdf

The LM4949 is a fully integrated audio subsystem designed for stereo cell phone applications.

National’s Output Capacitor-less (OCL) architecture that eliminates the output coupling capacitors required by traditional headphone amplifiers. Additionally, the headphone amplifiers can be configured with capacitively coupled (CC)loads, or used to drive an external headphone amplifier. When configured for an external amplifier, the VDD/2 output (VOC) controls the external amplifier’s shutdown input. For improved noise immunity, the LM4949 features fully differential left, right and mono inputs.

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Published: Nov 24, 2006 |