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LM4923 - 1.1 Watt Fully Differential Audio Power Amplifier

Datasheet Summary

Description

The LM4923 is a fully differential audio power amplifier primarily designed for demanding applications in mobile phones and other portable communication device applications.

Features

  • 1.
  • 2 Fully Differential Amplification.
  • Available in Space-saving WQFN Package.
  • Ultra Low Current Shutdown Mode.
  • Can Drive Capacitive Loads up to 100pF.
  • Improved Pop & Click Circuitry Eliminates Noises During Turn-on and Turn-off Transitions.
  • 2.4 - 5.5V Operation.
  • No Output Coupling Capacitors, Snubber Networks or Bootstrap Capacitors Required.

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Datasheet preview – LM4923

Datasheet Details

Part number LM4923
Manufacturer Texas Instruments
File Size 563.72 KB
Description 1.1 Watt Fully Differential Audio Power Amplifier
Datasheet download datasheet LM4923 Datasheet
Additional preview pages of the LM4923 datasheet.

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Full PDF Text Transcription

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LM4923, LM4923LQBD www.ti.com SNAS211E – JULY 2004 – REVISED MAY 2013 LM4923 1.1 Watt Fully Differential Audio Power Amplifier With Shutdown Select Check for Samples: LM4923, LM4923LQBD FEATURES 1 •2 Fully Differential Amplification • Available in Space-saving WQFN Package • Ultra Low Current Shutdown Mode • Can Drive Capacitive Loads up to 100pF • Improved Pop & Click Circuitry Eliminates Noises During Turn-on and Turn-off Transitions • 2.4 - 5.5V Operation • No Output Coupling Capacitors, Snubber Networks or Bootstrap Capacitors Required APPLICATIONS • Mobile Phones • PDAs • Portable Electronic Devices KEY SPECIFICATIONS • Improved PSRR at 217Hz 85dB(typ) • Power Output at 5.0V @ 1% THD+N 1.1W(typ) • Power Output at 3.3V @ 1% THD+N 400mW(typ) • Shutdown Current 0.
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