The LM4863 is a dual bridge-connected audio power amplifier which, when connected to a 5V
supply, will deliver 2.2W to a 4Ω load or 2.5W to a 3Ω load with less than 1.0% THD+N (see
below). In addition, the headphone input
pin allows the amplifiers to operate in single-ended mode when driving stereo headphones.
Boomer audio power amplifiers were designed specifically to provide high quality output
power from a surface mount package while requiring few external components. To simplify audio
system design, the LM4863 combines dual bridge speaker amplifiers and stereo headphone amplifiers
on one chip.
The LM4863 features an externally controlled, low-power consumption shutdown mode, a
stereo headphone amplifier mode, and thermal shutdown protection. It also utilizes circuitry to
reduce “clicks and pops” during device turn-on.
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