AD9258-24V Digital Amplifier Power Stage DataSheet  

Features
􀁺 2 x 15W at 1% THD+N into 8Ω BTL at 18V
􀁺 PVDD range from 12V to 24V
􀁺 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
􀁺 48-pin 7x7mm E-LQFP thermally-enhanced package

Applications
􀁺 TV audio
􀁺 DVD Receiver
􀁺 Home Theaters

Description
    The AD9258 is a high efficiency stereo digital amplifier power stage delivering 85% efficiency.Devices need two power supplies for the AD9258 operation up to 24V supply for PVDD and 3.3V for VDD. The AD9258 can deliver 10W/CH output
power into 8 Ω loudspeaker without external heat-sink or fan requirement at supply 24V.
    A built-in anti-pop function can reduce the speaker’s pop without requiring complex anti-pop sequence in PWM input, when AD9258 is applied in
AD modulation.
    The AD9258 has included protection circuits that integrated on chip. Protections ensure the AD9258 against the fault conditions that could damage the AD9258. These safeguards of the AD9258 include over-temperature, over-current, and under-voltage protection circuits.