The WM8956 is a low power stereo digital/analog converter (DAC) featuring Class D speaker drivers to provide 1W per channel into 8-ohm loads with a 5V supply. Low leakage, excellent PSRR and pop/click suppression mechanisms also allow direct battery connection to the speaker supply. Flexible speaker boost settings allow speaker output power to be maximized while minimizing other analog supply currents. A highly flexible input configuration for up to three stereo sources is integrated, with a complete microphone interface. Stereo 24-bit Delta Sigma DACs are used with low power over-sampling digital interpolation filters and a flexible digital audio interface. The master clock can be input directly or generated internally by an onboard PLL, supporting most commonly-used clocking schemes.