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LM4879 - 1.1 Watt Audio Power Amplifier

General Description

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

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.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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LM4879, LM4879MMBD, LM4879SDBD www.ti.com SNAS142G – SEPTEMBER 2001 – REVISED MAY 2013 LM4879 1.1 Watt Audio Power Amplifier Check for Samples: LM4879, LM4879MMBD, LM4879SDBD 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 APPLICATIONS • Mobile Phones • PDAs • Portable electronic devices KEY SPECIFICATIONS • PSRR: 5V, 3V at 217Hz: 62dB (typ) • Power Output at 5V, 1%THD+N: 1.