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| DDX-2000/2060 All-Digital High Efficiency Power Amplifier FEATURES * HIGH OUTPUT CAPABILITY 2x35W into 8 @ <1% THD+N * SINGLE SUPPLY (+9V to +30V) * HIGH EFFICIENCY, >88% * DIGITAL VOLUME CONTROL, ANTICLIPPING AND AUTOMATIC MUTE * THERMAL OVERLOAD AND SHORT CIRCUIT PROTECTION BENEFITS * COMPLETE SURFACE MOUNT DESIGN * SMALL PACKAGE -NO HEAT SINK * POWER SUPPLY SAVINGS * ALL DIGITAL - NO DAC APPLICATIONS * DIGITAL POWERED SPEAKERS * PC SOUND CARDS * CAR AUDIO * SURROUND SOUND SYSTEMS * DIGITAL AUDIO COMPONENTS PRODUCT PREVIEW The DDX-2000/2060 is a stereo amplifier chip set that implements Apogee's Direct Digital Amplification (DDX(R)) technology and can provide up to 35 watts per channel at very high efficiency. The design interfaces directly with digital audio sources and completely eliminates the need for digital to analog conversion. The high efficiency operation derived from the use of Apogee's patented damped ternary pulse width modulation provides a 20% efficiency advantage over conventional Class-D amplifiers and up to 300% advantage over typical Class A/B amplifiers. The surface mount design is intended for applications such as digital powered speakers, surround sound systems or any application desiring pure digital sound reproduction. The DDX-2000 Controller is a 3.3 volt 44 pin QFP digital IC that implements DDX processing. The device includes digital volume control, automatic mute and anti-clipping functionality to simplify product design. The DDX-2060 Power Device is a dual channel Class-D H-Bridge that has a logic interface, integrated bridge driver, high efficiency MOSFETs and protection circuitry. A thermally enhanced package enables circuit board amplifier designs without external heat sinks. DDX-2000/2060 BLOCK DIAGRAM V+ I 2S Digital Audio PWM1 3 Volume 3 Mute Reset Power Down 2 LP Filter DDX-2000 Controller PWM2 2 +VL DDX-2060 Power Device LP Filter Left Right Clock _____________________________129 Morgan Drive, Norwood MA 02062 voice: (888) 3APOGEE fax: (781) 440-9528 email: info@apogeeddx.com Copyright Apogee Technology, Inc 2000 (All Rights Reserved) Rev -1.0 November 2000 |
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