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LM4901 - 1.6 Watt Audio Power Amplifier

General Description

The LM4901 is an audio power amplifier primarily designed for demanding applications in mobile phones and other portable communication device applications.

Key Features

  • 1.
  • 2 Available in Space-Saving Packages: WSON and VSSOP.
  • Ultra Low Current Shutdown Mode.
  • BTL Output can Drive Capacitive Loads.
  • Improved Pop & Click Circuitry Eliminates Noise During Turn-On and Turn-Off Transitions.
  • 2.0 - 5.5V Operation.
  • No Output Coupling Capacitors, Snubber Networks or Bootstrap Capacitors Required.
  • Unity-Gain Stable.
  • External Gain Configuration Capability.
  • User Selectable Shutdown High or Low lo.

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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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LM4901 www.ti.com SNAS139F – DECEMBER 2001 – REVISED DECEMBER 2001 LM4901 1.6 Watt Audio Power Amplifier with Selectable Shutdown Logic Level Check for Samples: LM4901 FEATURES 1 •2 Available in Space-Saving Packages: WSON and VSSOP • Ultra Low Current Shutdown Mode • BTL Output can Drive Capacitive Loads • Improved Pop & Click Circuitry Eliminates Noise During Turn-On and Turn-Off Transitions • 2.0 - 5.5V Operation • No Output Coupling Capacitors, Snubber Networks or Bootstrap Capacitors Required • Unity-Gain Stable • External Gain Configuration Capability • User Selectable Shutdown High or Low logic Level APPLICATIONS • Mobile Phones • PDAs • Portable Electronic Devices KEY SPECIFICATIONS • Improved PSRR at 217Hz & 1KHz 62 dB • Power Output at 5.0V, 1% THD, 4Ω 1.