Part # LM4863 datasheet

Part Manufacturer: National Semiconductor

National Semiconductor

Part Description: LM4863 Boomer ® Audio Power Amplifier Series Dual 2.2W Audio Amplifier Plus Stereo Headphone Function


Part Details:

LM4863 October 2006 Dual LM4863Dual 2.2W Audio Amplifier Plus Stereo Headphone 2.2W FunctionGeneral Description Key Specifications Audio The LM4863 is a dual bridge-connected audio power ampli- n P at 1% THD+N O fier which, when connected to a 5V supply, will deliver 2.2W n LM4863LQ, 3, 4 loads 2.5W(typ), 2.2W(typ) to a 4 load (Note 1) or 2.5W to a 3 load (Note 2) with less n LM4863MTE, 3, 4 loads 2.5W(typ), 2.2W(typ) than 1.0% THD+N. In addition, the headphone input pin n LM4863MTE, 8 load 1.1W(typ) Amplifier allows the amplifiers to operate in single-ended mode when n LM4863, 8 1.1W(typ) driving stereo headphones. n Single-ended mode THD+N at 75mW into Boomer audio power amplifiers were designed specifically to 32 0.5%(max) provide high quality output power from a surface mount n Shutdown current 0.7µA(typ) package while requiring few external components. To sim- n Supply voltage range 2.0V to 5.5V plify audio system design, the LM4863 combines dual bridgespeaker amplifiers and stereo headphone amplifiers on one Plus chip. Features The LM4863 features an externally controlled, low-power n Stereo headphone amplifier mode consumption shutdown mode, a stereo headphone amplifier n "Click and pop" suppression circuitry Stereo mode, and thermal shutdown protection. It also utilizes cir- n Unity-gain stable cuitry to reduce "clicks and pops" during device turn-on. n Thermal shutdown protection circuitry Note 1: An LM4863MTE or LM4863LQ that has been properly mounted to n SOIC, TSSOP, exposed-DAP TSSOP, and LLP


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LM4863.pdf Datasheet