Low Power Smart Codec with Echo Cancellation
The WM8281 is a highly integrated low-power audio system that combines an advanced DSP feature set with a flexible, high-performance codec. The programmable DSP cores support advanced audio features, including multi-mic wideband noise reduction, high-performance acoustic echo cancellation (AEC), speech enhancement, advanced media enhancement, and many more.
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Technologies
Features
- 600 MIPS, 600 MMC multi-core audio-signal processor
- Programmable wideband, multi-mic audio processing
- Multi-channel asynchronous sample rate conversion
- Integrated 6/8 channel 24-bit hi-fi audio codec
- Analog and digital microphone inputs
- Multi-purpose headphone / earpiece / line output drivers
- Stereo Class D speaker output drivers
- Four-channel digital speaker (PDM) interface
- SLIMbus audio and control interface
- 3 full digital audio interfaces
- Flexible clocking interface
- Advanced accessory detection feature
- Configurable functions on GPIO pins
- Integrated LDO regulators and charge pumps
- Small WLCSP package, 0.4mm pitch
Parametric Specifications
| DACs | 8 |
| ADCs | 6 |
| DAC THD+N (dB) | -90 |
| ADC THD+N (dB) | -88 |
| Sample Rate (kHz) | 4-192 |
| Analog Power Supply (V) | 1.8 |
| Digital Power Supply (V) | 1.2; 1.8-3.6 |
| Power Consumption (mW) | 4.1-1568 |
| Package | 138 WLCSP |
