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发布者:微桥 发布时间:2011-12-31 阅读:4513次    关键字: 音频功放
AD9256H-DIGITAL AMPLIFIER POWER STAGE停产


AD9256H-DIGITAL AMPLIFIER POWER STAGE DataSheet  

停产

Features
n PVDD range from 10.8V to 16.5V
n Support single-ended input audio PWM (AD)
modulated signal
n Support differential input audio PWM (AD & BD)
modulated signal
n Loudspeaker output power for stereo (BTL)
- 10W x 2CH @ THD+N=0.4% into 8Ω at 15V
- 8W x 2CH @ THD+N=8.4% into 8Ω at 12V
n Loudspeaker output power for mono (BTL)
- 20W x 1CH @ THD+N=0.45% into 8Ω at 15V
n Over-temperature protection
n Over-current protection
n Under-voltage detection
n Error report
n Built-in anti-pop function
n 24-pin E-TSSOP thermally-enhanced package

Applications
n TV audio
n DVD Receiver
n Home Theaters

Description
    The AD9256H is a high performance stereo digital amplifier power stage. It can deliver 10W x 2CH output power into 8Ω loudspeaker for stereo or 20W x 1ch
output power into 4Ω loudspeaker for mono in BTL configuration within <1% THD+N at 15V supply.A patented, built-in anti-pop function can reduce the speaker’s pop noise without requiring complex anti-pop sequence in PWM input.
    The AD9256H’s chip is integrated with over-temperature, over-current, and under-voltage protection circuits. These additions safeguard the AD9256H against fault conditions that could damage the chip and system catastrophically.

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