LM4938

LM4938 Description

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LM4938 Datasheet (PDF)

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LM4938 Features

• 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

LM4938 Description

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

BoomerŪ 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.

The LM4938 features an externally controlled, low-power consumption shutdown mode, and both a power amplifier and headphone mute for maximum system flexibility and performance.

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