A2222 Datasheet | AiT Semiconductor

DESCRIPTION The A2222 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. 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 ponents. To simplify audio system design, the A2222 bines dual bridge speaker amplifiers and stereo headphone amplifiers on one chip. The A2222 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. The A2222 is available in SOP16 package. ORDERING INFORMATION FEATURES - Stereo headphone amplifier mode - “Click and pop” suppression circuitry - Unity-gain stable - Thermal shutdown protection circuitry - Power Output @1% THD+N & VDD=5V RL=8Ω 1.1W(TYP.) - Single-ended mode THD+N@75m W into 32Ω 0.5%(Max) - Shutdown current 0.7u A(TYP.) - Supply Voltage 2.0V~5.5V - Available in SOP16 package. APPLICATION - Multimedia monitors - Portable and desktop puters - Portable televisions Package Type Part Number SOP16 M16 A2222M16R A2222M16VR Note R: Tape & Reel V: Halogen free Package Ai T provides all Ro HS products Suffix “ V “ means Halogen free Package REV2.0 - MAR 2011 RELEASED, JUL 2012 UPDATED - -1- Ai T Semiconductor Inc. .ait-ic. PIN DESCIPTION AUDIO POWER AMPLIFIER DUAL 2.2W PLUS STEREO HEADPHONE FUNCITON Pin # 1 2,7,15 3 4,13 5 6 8 9 10 11 12 14...