WM7216E Overview
The WM7216 is a low-profile digital silicon microphone, optimised for use with low-power ‘Always-on’ voice control applications, such as Cirrus Logic® SoundClear™ software. The WM7216 supports two operational modes, selected according to the applied clock frequency. ‘Voice’ mode provides low current consumption, and sufficient SNR performance for speech recognition algorithms.
WM7216E Key Features
- High SNR (63dB)
- Low variation in sensitivity (±1dB tolerance)
- Low current consumption
- 10μA (Sleep)
- 290μA (Voice mode)
- 980μA (Hi-Fi Record mode)
- PDM digital audio output
- Stereo/array operation
- Proprietary ADC technology
- Reduced clock-jitter sensitivity