LM4867MT

• Advanced "click" sound suppression circuitry
• Elimination of headphone amplifier output coupling capacitance (patent pending)
• Stereo headphone amplifier mode
• Input MUX control and two independent inputs, each channel
• Thermal shutdown protection circuitry
• Law firm, TSSOP and TSSOP encapsulation of bare diammonium phosphate

illustrate

The LM4867 is a dual-channel bridge-connected audio power amplifier that will deliver 2.1W 4 when connected to a 5V supply 3 load or 2.4W THD+N is less than 1.0% of the load The LM4867 uses advanced, latest generation circuitry to eliminate all click-to-click traces and persistent organic pollutants when the supply voltage is first applied. The amplifier has an input pin for a select headphone amplifier. It is used to switch the amplifier from bridge to single-ended mode driving headphones. A new circuit topology eliminates headphone output coupling capacitors (patent pending). The MUX control pin allows a choice between two sets of stereo input signals. MUX control can also be used to select two different customer-specified closed-loop reactions.

Boomer audio power amplifiers are designed to deliver high quality output power from a surface mount package and require few external components. To simplify audio system design, the LM4867 combines a dual-bridge speaker amplifier and a stereo headphone amplifier in a single package.

The LM4867 features external control power-saving micropower shutdown mode, a stereo headphone amplifier mode, and thermal shutdown protection.

Main specifications

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• Multimedia display
• Portable and desktop computers
• Portable audio system