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LM4923 Datasheet 1.1 Watt Fully Differential Audio Power Amplifier

Manufacturer: National Semiconductor (now Texas Instruments)

Overview: LM4923 1.1 Watt Fully Differential Audio Power Amplifier With Shutdown Select July 2004 LM4923 1.

General Description

The LM4923 is a fully differential 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.

Key Features

  • a low-power consumption shutdown mode. To facilitate this, Shutdown may be enabled by logic low. Additionally, the LM4923 features an internal thermal shutdown protection mechanism. The LM4923 contains advanced pop & click circuitry which eliminates noises which would otherwise occur during turn-on and turn-off transitions. Key Specifications j Improved PSRR at 217Hz j Power Output at 5.0V @ 1% THD+N j Power Output at 3.3V @ 1% THD+N j Shutdown Current 85dB(typ) 1.1W(typ) 400mW(typ) 0.1µA(typ).

Similar Datasheet

Brand Logo Part Number Description Manufacturer
Texas Instruments Logo LM4923 1.1 Watt Fully Differential Audio Power Amplifier Texas Instruments

More Datasheets from National Semiconductor (now Texas Instruments)

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LM4922 80mW Stereo Headphone Amplifier
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LM49250 Enhanced Emissions Suppression Stereo Class D Audio Sub-System
LM4926 Ground-Referenced and Ultra Low Noise - Fixed Gain - 80mW Stereo Headphone Amplifier
LM4927 2.5 Watt Fully Differential Audio Power Amplifier
LM49270 Filterless 2.2W Stereo Class D Audio Subsystem
LM4928 1.2 Watt Stereo Fully Differential Audio Amplifier

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