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LM4903 Datasheet 1 Watt Audio Power Amplifier

Manufacturer: National Semiconductor (now Texas Instruments)

Overview: LM4903 1 Watt Audio Power Amplifier February 2003 LM4903 1 Watt Audio Power.

General Description

The LM4903 is an audio power amplifier primarily designed for demanding applications in mobile phones and other portable munication device applications.

It is capable of delivering 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 ponents.

Key Features

  • a low-power consumption shutdown mode, which is achieved by driving the shutdown pin with logic low. Additionally, the LM4903 features an internal thermal shutdown protection mechanism. The LM4903 contains advanced pop & click circuitry which eliminates noise which would otherwise occur during turn-on and turn-off transitions. The LM4903 is unity-gain stable and can be configured by external gain-setting resistors. Key Specifications j Improved PSRR at 217Hz & 1KHz j Power Output at 5.0V, 1% TH.

More Datasheets from National Semiconductor (now Texas Instruments)

Part Number Description
LM4900 265mW at 3.3V Supply Audio Power Amplifier
LM4901 1.6 Watt Audio Power Amplifier
LM4902 265mW at 3.3V Supply Audio Power Amplifier
LM4904 1 Watt Audio Power Amplifier
LM4905 1 Watt Audio Power Amplifier
LM4906 1W/ Bypass-Capacitor-less Audio Amplifier
LM4908 10kV ESD Rated Dual 120 mW Headphone Amplifier
LM4910 Output Capacitor-less Stereo 35mW Headphone Amplifier
LM49100 Mono Class AB Audio Subsystem
LM49101 Mono Class AB Audio Subsystem

LM4903 Distributor