MC4863

MC4863 Dual 2.2W Audio Amplifier Plus Stereo Headphone Function Gen er al D es c r i p t i o n The MC4863 is a dual bridge-connected audio power amplifier which, when connected to a 5V supply, will deliver 2.2W to a 4 Ω load(No t e 1) or 2.5W to a 3 Ω load(No t e 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. 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, it combines dual bridge speaker amplifiers and stereo headphone amplifiers on one chip. The MC4863 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. . . . . . . . . Feat u r es P O at 1% THD+N into 3 Ω into 4 Ω Into 8 Ω Single-ended mode - THD+N at 75mW into 32 Ω Shutdown current Stereo headphone amplifier mode “Click and pop” suppression circuitry Unity-gain stable Thermal shutdown protection circuitry The available in a SOP16 package and TSSOP16-EP,TSSOP20 and TSSOP20-EP packages 0.7 μ A(typ) 2.5W(typ) 2.2W(typ) 1.1W(typ) 0.5%(max) . . . A p p l i c at i o n s Multimedia monitors Portable and desktop computers Portable televisions No t e 1: An MC4863 which has been properly mounted to the circuit board wil...