The LM4947 is an audio subsystem capable of efficiently delivering 500mW (Classs D operation) of continuous average power into a mono 8Ωbridged-tied load (BTL) with 1% THD+N, 36mW (Class AB operation) power channel of continuous average power into stereo 32Ω single-ended (SE) loads with 1% THD+N, or an output capacitor-less (OCL) configuration with identical specification as the SE configu
ration, from a 3.3V power supply.
Features
I2C Control Interface
I2C programmable National 3D Audio
I2C controlled 32 step digital volume control (-59.5dB to +18dB)
Three independent volume channels (Left, Right, Mono)