A2327

AiT Semiconductor Inc. www.ait-ic.com A2327 POWER AMPLIFIER 2.6W MONO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER DESCRIPTION FEATURES The A2327 is a 2.6W high efficiency filter-free class-  Efficiency With an 8Ω Speaker: D audio power amplifier that requires only three 88% @ 400mW external components. 80% @ 100mW Features like 88% efficiency, −75dB PSRR, and  3.8mA Quiescent Current improved RF-rectification immunity make the A2327  0.4μA Shutdown Current ideal for cellular handsets. In cellular handsets, the  Optimized PWM Output Stage Eliminates LC earpiece, speaker phone, and melody ringer can Output Filter each be driven by the A2327.  Internally Generated 250kHz Switching Frequency Eliminates Capacitor and Resistor The A2327 is available in MSOP8 and SOP8  Improved PSRR (−75dB) and Wide Supply packages. Voltage (2.5V to 5.5V) Eliminates Need for a Voltage Regulator ORDERING INFORMATION  Fully Differential Design Reduces RF Rectification and Eliminates Bypass Capacitor Package Type MSOP8 Part Number MS8 A2327MS8R A2327MS8VR  Improved CMRR Eliminates Two Input Coupling Capacitors  Available in MSOP8 and SOP8 Packages SOP8 A2327M8R M8 A2327M8VR Note V: Halogen free Package R: Tape & Reel AiT provides all RoHS products APPLICATION  Mobile phone、PDA、MID  MP3/4、PMP  Portable electronic devices Suffix “ V “ means Halogen free Package REV2.0 - NOV 2008 RELEASED, NOV 2013 UPDATED - -1- AiT Semiconductor Inc. www.ait-ic.com A2327 PO...