With its directly-coupled output technology, the LM48821 is avariable gain audio power amplifier capable of delivering52mWRMS per channel into a 16Ω single-ended load with lessthan 1% THD+N from a 3V power supply. The I2C volumecontrol has a range of –76dB to 18dB.The LM48821's Tru-GND technology utilizes advancedcharge pump technology to generate the LM48821’s negativesupply voltage. This eliminates the need for output-couplingcapacitors typically used with single-ended loads.
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