Part LM4851
Description Integrated Audio Amplifier
Manufacturer National Semiconductor
Size 1.10 MB
National Semiconductor

LM4851 Overview

Description

The LM4851 is an audio power amplifier system capable of delivering 1.1W (typ) of continuous average power into a mono 8Ω bridged-tied load (BTL) with 1% THD+N and 115mW (typ) per channel of continuous average power into stereo 32Ω BTL loads with 0.5% THD+N, using a 5V power supply. The LM4851 features a 32 step digital volume control and eight distinct output modes.

Key Features

  • SPI programmable 32 step digital volume control (-40.5dB to +6dB)
  • Eight distinct SPI programmable output modes n micro-SMD and LLP surface mount packaging n “Click and pop” suppression circuitry
  • Thermal shutdown protection
  • Low shutdown current (0.1µA, typ)