The WM7331 is a low-profile silicon analog microphone offering high Signal-to-Noise Ratio (SNR) and low power consumption. The device incorporates Cirrus Logic’s proprietary CMOS/MEMS membrane technology, offering high reliability and high performance in a miniature, low-profile package. The compact integration of transducer and internal circuitry on a single die enables implementation with an extremely small package. The WM7331 offers tight tolerance on the microphone sensitivity, giving reduced variation between parts and removing the need for in-line production calibration of part-to-part microphone variations.
| Cirrus Logic, Inc. | |
|---|---|
| Product Category | Audio Microphones |
| Product Number | WM7331 |
| Product Name | Bottom Port Analog Microphone |
| Directivity | Omnidirectional |
| Frequency Response | 70 to 15000 Hz |
| Dynamic Range | 89 dB re 20µPa |
| Thickness / Height | 0.0354 inch (0.9000 mm) |
| Sensitivity | -38 mV/Pa (-261997 mV/psi) |