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发布者:微桥 发布时间:2011-12-30 阅读:5059次    关键字: 音频功放
AD9256-DIGITAL AMPLIFIER POWER STAGE停产


AD9256-DIGITAL AMPLIFIER POWER STAGE DataSheet  

停产

Features
􀁺 2X12.5W at 10% THD+N into 8Ω BTL at 15V
􀁺 2X8W at 10% THD+N into 8Ω BTL at 12V
􀁺 Support single-ended or differential input
􀁺 Over-temperature protection
􀁺 Over-current protection
􀁺 Under-voltage detection
􀁺 Error report and thermal warning
􀁺 Built-in anti-pop function for AD modulation
􀁺 PVDD range from 10.8V to 16.5V
􀁺 24-pin E-TSSOP thermally-enhanced package

Applications
􀁺 TV audio
􀁺 DVD Receiver
􀁺 Home Theaters

Description
    The AD9256 is a high efficiency stereo digital amplifier power stage delivering 85% efficiency.Devices need two power supplies for the AD9256 operation up to 15V supply for PVDD and 3.3V for VDD. The AD9256 can deliver 10W/CH output
power into 8 Ω loudspeaker (in BTL operation) within 1% THD+N at supply 15V.
    A built-in anti-pop function can reduce the speaker’s pop without requiring complex anti-pop sequence in PWM input, when AD9256 is applied in AD modulation.
    The AD9256 has included protection circuits that integrated on chip. Protections ensure the AD9256 against the fault conditions that could damage the AD9256. These safeguards of the AD9256 include over-temperature, over-current, and under-voltage protection circuits.

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