LM4841  Product Folder

The LM4841 is a monolithic integrated circuit that provides DC volume control and stereo bridged audio power amplifiers capable of producing 2W into 4 or 2.2W into 3 with less than 1.0% THD.

The LM4841 uses advanced, latest generation circuitry to eliminate all traces of clicks and pops when the supply voltages is first applied. The amplifier has a headphone-amplifier-select input pin that is used to switch the amplifiers from bridge to single-ended mode for driving headphones. A new circuit topology eliminates headphone output coupling capacitors (patent pending).

Boomer® audio integrated circuits are designed specifically to provide high quality audio while requiring a minimum amount of external components. The LM4841 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 LM4841 features an externally controlled, low-power consumption shutdown mode (Shutdown Low), and both a power amplifier and headphone mute for maximum system flexibility and performance.

• Stereo headphone amplifier mode that eliminates the Output Coupling Capacitors (patent pending)
• Acoustically Enhanced DC Volume Control Taper
• System Beep Detect
• Stereo switchable bridged/single-ended power amplifiers
• Selectable internal/external gain and bass boost
• Advanced "click and pop" suppression circuitry
• Thermal shutdown protection circuitry

• Portable and Desktop Computers
• Multimedia Monitors
• Portable Radios, PDAs, and Portable TVs