WM9094 Datasheet (Wolfson Microelectronics) - Ultra Low Power Audio Subsystem

WM9094, Ultra Low Power Audio Subsystem

The WM9094[1] 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.

The unique dual mode charge pump architecture provides ground referenced headphone outputs removing

WM9094 Features

* 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 s