The LM4990 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, Exposed-DAP MSOP-PowerPAD, VSSOP, and DSBGA.
Ultra Low Current Shutdown Mode.
Improved Click and Pop Circuitry Eliminates
Noise During Turn-On and Turn-Off Transitions.
2.2 - 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
A.
Full PDF Text Transcription for LM4990 (Reference)
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LM4990. For precise diagrams, and layout, please refer to the original PDF.
LM4990 www.ti.com SNAS184E – DECEMBER 2002 – REVISED MAY 2013 LM4990 2 Watt Audio Power Amplifier with Selectable Shutdown Logic Level Check for Samples: LM4990 FEATURES ...
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th Selectable Shutdown Logic Level Check for Samples: LM4990 FEATURES 1 •2 Available in Space-Saving Packages: WSON, Exposed-DAP MSOP-PowerPAD, VSSOP, and DSBGA • Ultra Low Current Shutdown Mode • Improved Click and Pop Circuitry Eliminates Noise During Turn-On and Turn-Off Transitions • 2.2 - 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: 62dB •
LM4990 Datasheet
