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LM4938 Datasheet Stereo 2w Audio Power Amplifiers

Manufacturer: Texas Instruments

Overview: LM4938 www.ti.com SNAS245B – FEBRUARY 2005 – REVISED MAY 2013 LM4938 Boomer™ Audio Power Amplifier Series Stereo 2W Audio Power Amplifiers with DC Volume Control and Selectable Gain Check for Samples:.

General Description

The LM4938 is a monolithic integrated circuit that provides DC volume control, and stereo bridged audio power amplifiers capable of producing 2W into 4Ω with less than 1.0% THD or 2.2W into 3Ω with less than 1.0% THD.

Boomer audio integrated circuits were designed specifically to provide high quality audio while requiring a minimum amount of external components.

The LM4938 incorporates a DC volume control, stereo bridged audio power amplifiers and a selectable gain or bass boost, making it optimally suited for multimedia monitors, portable radios, desktop, and portable computer applications.

Key Features

  • 1.
  • 23 Improved Click and Pop Circuitry Virtually Eliminates Noise During Turn On/Off Transitions.
  • DC Volume Control Interface.
  • System Beep Detect.
  • Stereo Switchable Bridged/Single-Ended Power Amplifiers.
  • Selectable Internal/External Gain and Bass Boost.
  • Thermal Shutdown Protection Circuitry.
  • Unity Gain Stable.

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