The WM9094 is a high performance low power audio subsystem, including headphone driver and Class AB/D earpiece/speaker driver. The Class D speaker driver supports 650mW output power at 3.6V, 1%THD.
Mono Class D speaker driver
2W at 5V SVDD @1%THD+N into 4Ω
650mW at 3.6V SVDD @1%THD+N into 8Ω
92dB SNR
Ground referenced stereo headphone driver
34mW into 16Ω load @ 1% THD+N
96dB SNR
80dB THD+N
Mono Class AB earpiece driver
40mW into 8Ω load
Differential and single ended analog input configurations
Compatible with ground-referenced audio sources
Integrated oscillator for clocking requirements
I²C two-wire software control interface
Automatic gain control (AGC) for Class D speaker output