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LM4873 Datasheet Dual 2.1W Audio Amplifier

Manufacturer: Texas Instruments

General Description

The LM4873 is a dual bridge-connected audio power amplifier which, when connected to a 5V supply, will deliver 2.1W to a 4Ω load or 2.4W to a 3Ω load with less than 1.0% THD+N (see Notes below).

In addition, the headphone input pin allows the amplifiers to operate in single-ended mode when driving stereo headphones.

A MUX control pin allows selection between the two stereo sets of amplifier inputs.

Overview

LM4873 www.ti.com SNAS033E – AUGUST 2000 – REVISED MAY 2013 LM4873 Dual 2.

Key Features

  • 1.
  • 2 Input Mux Control and Two Separate Inputs Per Channel.
  • Stereo Headphone Amplifier Mode.
  • “Click and Pop” Suppression Circuitry.
  • Thermal Shutdown Protection Circuitry.
  • PCB Area-Saving DSBGA and Thin DSBGA Packages.
  • TSSOP and HTSSOP and WQFN Packages.