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LM4947 - Mono Class D and Stereo Audio Subsystem

Datasheet Summary

Description

The LM4947 is an audio subsystem capable of efficiently delivering 500mW (Class D operation) of continuous average power into a mono 8Ω bridged-tied load (BTL) with 1% THD+N, 37mW (Class AB operation) power channel of continuous average power into stereo 32Ω single-ended (SE) loads with 1% THD+N, or

Features

  • a 32-step digital volume control and eight distinct output modes. The digital volume control, 3D enhancement, and output modes are programmed through a two-wire I2C compatible interface that allows flexibility in routing and mixing audio channels. The RF suppression circuitry in the LM4947 makes it wellsuited for GSM mobile phones and other portable.

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Datasheet Details

Part number LM4947
Manufacturer National Semiconductor
File Size 1.65 MB
Description Mono Class D and Stereo Audio Subsystem
Datasheet download datasheet LM4947 Datasheet
Additional preview pages of the LM4947 datasheet.

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www.DataSheet4U.com LM4947 Mono Class D and Stereo Audio Subsystem with OCL Headphone Amplifier and National 3D October 2006 LM4947 Mono Class D and Stereo Audio Subsystem with OCL Headphone Amplifier and National 3D General Description The LM4947 is an audio subsystem capable of efficiently delivering 500mW (Class D operation) of continuous average power into a mono 8Ω bridged-tied load (BTL) with 1% THD+N, 37mW (Class AB operation) power channel of continuous average power into stereo 32Ω single-ended (SE) loads with 1% THD+N, or an output capacitor-less (OCL) configuration with identical specification as the SE configuration, from a 3.3V power supply.
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