AD9256-DIGITAL AMPLIFIER POWER STAGE DataSheet
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
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
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.