The WM8956 is a low power stereo digital/analog converter (DAC) featuring Class D speaker drivers to provide 1 W per channel into 8 ω loads with a 5 V 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.
Features
Pop and click suppression
3D enhancement
Stereo class D speaker driver
87% efficiency (1 W output)
Flexible internal switching clock
On-chip headphone driver
40 mW output power into 16 ohm at 3.3 V
Capless mode support
Microphone interface
Pseudo-differential for high noise immunity
Integrated low noise MICBIAS
Low power consumption
16 mW headphone playback (2.7 V / 1.8 V supplies)
Low supply voltages
on-chip PLL provides flexible clocking scheme
Sample rates: 8, 11.025, 12, 16, 22.05, 24, 32, 44.1, 48
32-pin QFN package
The WM8956 is a low power stereo digital/analog converter (DAC) featuring Class D speaker drivers to provide 1 W per channel into 8 Ω loads with a 5 V 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.
Features
- Pop and click suppression
- 3D enhancement
- Stereo class D speaker driver
- 87% efficiency (1 W output)
- Flexible internal switching clock
- On-chip headphone driver
- 40 mW output power into 16 ohm at 3.3 V
- Capless mode support
- Microphone interface
- Pseudo-differential for high noise immunity
- Integrated low noise MICBIAS
- Low power consumption
- 16 mW headphone playback (2.7 V / 1.8 V supplies)
- Low supply voltages
- on-chip PLL provides flexible clocking scheme
- Sample rates: 8, 11.025, 12, 16, 22.05, 24, 32, 44.1, 48
- 32-pin QFN package
