LM4845 - Output Capacitor-less Audio Subsystem

Product Overview

National Semiconductor

Datasheet Details

Part number	LM4845
Manufacturer	National Semiconductor
File Size	1.40 MB
Description	Output Capacitor-less Audio Subsystem
Datasheet	LM4845 Datasheet
Additional preview pages of the LM4845 datasheet.

Product details

Description

The LM4845 is an audio power amplifier capable of delivering 500mW of continuous average power into a mono 8Ω bridged-tied load (BTL) with 1% THD+N, 25mW 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 specification as the SE configuration, from a 3.3V power supply.

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 three-wire SPI compatible interface that allows flexibility in routing and mixing audio channels. The LM4845 has three input channels: one pair for a two-channel stereo signal and the third for a single-channel mono input. The LM4845 is designed for cellular phone, PDA, and other portable handheld.

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Published: Apr 25, 2010 |