应用功能:双声道2.2W音频放大器加立体声耳机功能 The LM4863 is a dual bridge-connected audio power amplifier which, when connected to a 5V supply, will deliver 2.2W to a 4W load (Note 1) or 2.5W to a 3W load (Note 2)with less than 1.0% THD+N. In addition, the headphone input pin allows the amplifiers to operate in single-ended mode to drive stereo headphones.