DDX-2050

DDX-2050 All-Digital High Efficiency Power Amplifier FEATURES HIGH OUTPUT CAPABILITY 2 x 30W into 8Ω or 1 x 60W into 4 Ω @ <1% THD SINGLE SUPPLY (+9V to +30V) COMPACT SURFACE MOUNT PACKAGE HIGH EFFICIENCY, >88% THERMAL OVERLOAD AND SHORT CIRCUIT PROTECTION BENEFITS COMPLETE SURFACE MOUNT DESIGN POWER SUPPLY SAVINGS APPLICATIONS DIGITAL POWERED SPEAKERS PC SOUND CARDS CAR AUDIO SURROUND SOUND SYSTEMS DIGITAL AUDIO COMPONENTS GENERAL DESCRIPTION The DDX-2050 power device is a monolithic dual channel H-Bridge that can provide up to 30 watts per channel of audio power at very high efficiency. The DDX-2050 power device contains a logic interface, integrated bridge drivers, high efficiency MOSFET output transistors and protection circuitry. The device may be used as a dual bridge or reconfigured as a single bridge with double the output current capability. The benefits of the DDX amplification system are an all-digital design that eliminates the need for a digital to analog converter (DAC) and the high efficiency operation derived from the use of Apogee's patented damped ternary pulse width modulation (PWM). This approach provides an efficiency advantage over conventional Class-D designs and up to three times the efficiency of typical Class A/B amplifiers with music input signals. INLA BIAS CONFIG PWRDN FAULT TRISTATE TWARN GNDREF INLB INRA VSIG VREG2 VREG2 VREG1 VREG1 GNDR1 INRB PROTECTION AND DRIVER LOGIC FET DRIVE FET DRIVE REGULATORS ...