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LM4879 Datasheet 1.1 Watt Audio Power Amplifier

Manufacturer: Texas Instruments

General Description

The LM4879 is an audio power amplifier primarily designed for demanding applications in mobile phones and other portable communication device applications.

It is capable of delivering 1.1 watt of continuous average power to an 8Ω BTL load with less than 1% distortion (THD+N) from a 5VDC power supply.

Boomer™ audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components.

Overview

LM4879, LM4879MMBD, LM4879SDBD www.ti.com SNAS142G – SEPTEMBER 2001 – REVISED MAY 2013 LM4879 1.

Key Features

  • 1.
  • 23 No Output Coupling Capacitors, Snubber Networks or Bootstrap Capacitors Required.
  • Unity Gain Stable.
  • Ultra Low Current Shutdown Mode.
  • Fast Turn On: 80ms (typ), 110ms (max) with 1.0µF Capacitor.
  • BTL Output Can Drive Capacitive Loads up to 100pF.
  • Advanced Pop and Click Circuitry Eliminates Noises During Turn-On and Turn-Off Transitions.
  • 2.2V - 5.0V Operation.
  • Available in Space-Saving DSBGA, WSON, and VSSOP Packages APPLI.