WM7132PIMSE/RV

Overview

The WM7132PIMSE/RV is an analog MEMS microphone manufactured by Cirrus Logic. It features a bottom port design and omni-directional acoustic response. Key electrical parameters include a sensitivity of -38 dB with a 1 dB tolerance, a signal-to-noise ratio of 65 dB, and an impedance of 100 Ohms. The device operates within a frequency range of 62 Hz to 12.5 kHz, drawing 200 uA at a supply voltage of 3.7 V. It supports an operating temperature range from -40 C to +100 C and is housed in a compact LGA-6 package measuring 3.76 mm x 3 mm x 1.1 mm.

Feature Summary

• Analog output interface for direct integration with audio processing circuits
• Bottom port acoustic structure optimized for specific enclosure mounting requirements
• Omni-directional polar pattern ensuring consistent sound capture from all angles

Applications

• Mobile communication devices requiring low-profile audio input
• Portable consumer electronics utilizing analog MEMS sensors
• Embedded voice recognition systems with strict height constraints

Procurement Notes

Verify component authenticity through authorized distribution channels due to end-of-life status. Confirm RoHS compliance documentation matches current regulatory standards. Validate lot traceability and humidity sensitivity handling procedures prior to assembly. Ensure replacement sourcing aligns with long-term availability requirements for production continuity.

Selection Notes

Select this component when analog output is required rather than digital interfaces. Consider the bottom port configuration for mechanical integration needs. Evaluate the 65 dB SNR against system noise floor requirements. Verify that the 3.7 V supply voltage aligns with target platform power rails.

Part Context

This part belongs to the Cirrus Logic WM7132 series of MEMS microphones. It represents an analog solution distinct from the company's digital microphone offerings such as the WM7210 or WM7236 series. The LGA-6 package provides a small footprint suitable for space-constrained portable applications.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.