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LM4946 - Output Capacitor Less Audio Subsystem

Datasheet Summary

Description

The LM4946 is an audio power amplifier capable of delivering 540mW of continuous average power into a mono 8Ω bridged-tied load (BTL) with 1% THD+N, 35mW per channel of continuous average power into stereo 32Ω single-ended (SE) loads with 1% THD+N, or an output capacitor-less (OCL) configuration wit

Features

  • a 32-step digital volume control and eight distinct output modes. The digital volume control, 3D enhancement, and output modes (mono/ SE/OCL) are programmed through a two-wire I2C or a threewire SPI compatible interface that allows flexibility in routing and mixing audio channels. The LM4946 is designed for cellular phone, PDA, and other portable handheld.

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Datasheet Details

Part number LM4946
Manufacturer National Semiconductor
File Size 1.45 MB
Description Output Capacitor Less Audio Subsystem
Datasheet download datasheet LM4946 Datasheet
Additional preview pages of the LM4946 datasheet.

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www.DataSheet4U.com LM4946Output Capacitor-Less Audio Subsystem with Programmable National 3D May 2006 LM4946 Output Capacitor-Less Audio Subsystem with Programmable National 3D General Description The LM4946 is an audio power amplifier capable of delivering 540mW of continuous average power into a mono 8Ω bridged-tied load (BTL) with 1% THD+N, 35mW per 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 specifications as the SE configuration, from a 3.3V power supply. The LM4946 has three input channels: one pair for a twochannel stereo signal and the third for a differential singlechannel mono input. The LM4946 features a 32-step digital volume control and eight distinct output modes.
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