BL6305

BL6305 2.6 Watt Mono Filter-Free Class-D Audio Power Amplifier Features Efficiency With an 8-Ω Speaker: 88% at 400 mW 80% at 100 mW 2.1mA Quiescent Current 0.4µA Shutdown Current Optimized PWM Output Stage Eliminates LC Output Filter Internally Generated 250-kHz Switching Frequency Eliminates Capacitor and Resistor Improved PSRR (−75 dB) and Wide Supply Voltage (2.5 V to 5.5 V) Eliminates Need for a Voltage Regulator Fully Differential Design Reduces RF Rectification and Eliminates Bypass Capacitor Improved CMRR Eliminates Two Input Coupling Capacitors MSOP8, SOP8, DFN8 package General Description The BL6305 is a 2.6W high efficiency filter-free class-D audio power amplifier that requires only three external components. Features like 88% efficiency, −75dB PSRR, and improved RF-rectification immunity make the BL6305 ideal for cellular handsets. In cellular handsets, the earpiece, speaker phone, and melody ringer can each be driven by the BL6305. Applications Mobile phone、PDA MP3/4、PMP Portable electronic devices Order Information Part Number BL6305MM BL6305DN BL6305SO Pin Diagrams Package MSOP8 DFN8 SOP8 Shipping 3000 pcs / Tape & Reel 3000 pcs / Tape & Reel 2500 pcs / Tape & Reel http://www.belling.com.cn - Page 1 of 9 - Ver1.2 BL6305 Pin Description Pin # 1 2 3 4 5 6 7 8 Name SDB IN+ INVO+ VDD PGND VO- Description Shutdown terminal (low active) NC (No internal connection) Positive differential input Negative differential input Positive BTL output Power Supply Powe...