SP0102BE3-5

Overview

The Knowles SP0102BE3-5 is a silicon MEMS microphone designed for high-fidelity audio capture in mobile and wearable devices. It features an omnidirectional acoustic port configuration, ensuring consistent sensitivity across all angles of incidence. The device integrates a low-noise amplifier within the package to deliver a high signal-to-noise ratio, typically around 64 dB(A). It operates on a single supply voltage ranging from 1.6V to 3.6V, with a typical current consumption of 180µA. The component utilizes a digital PDM output interface, facilitating direct connection to host processors without requiring external analog-to-digital conversion.

Feature Summary

• Integrated low-noise front-end amplifier for enhanced audio clarity
• Digital pulse-density modulation output for simplified system integration
• Omnidirectional frequency response suitable for diverse acoustic environments
• Compact surface-mount package optimized for space-constrained designs

Applications

• Smartphones and tablets for voice recognition and hands-free calling
• Wearable health monitors requiring precise biometric audio input
• IoT voice assistants and smart home hubs
• Portable medical diagnostic equipment

Procurement Notes

Verify the specific suffix code against the manufacturer's latest datasheet to confirm pinout compatibility and acoustic specifications. Ensure that the ordering information matches the exact revision level required for your PCB layout. Cross-reference the RoHS compliance status and lead time availability directly with authorized distributors prior to finalizing procurement plans.

Selection Notes

Select this component when a digital output interface is preferred over analog alternatives to reduce noise susceptibility in mixed-signal environments. Consider the operating voltage range and current consumption constraints of the target application. Evaluate the acoustic performance requirements, specifically the need for omnidirectional pickup patterns and high signal-to-noise ratios in noisy settings.

Part Context

This model belongs to Knowles' series of silicon MEMS microphones engineered for consumer electronics. The series emphasizes miniaturization and power efficiency while maintaining professional-grade audio quality. These components are widely adopted in the mobile industry due to their robust manufacturing processes and consistent acoustic performance across production batches.

Replacement Considerations

Consult official substitution guides for compatible parts within the same product family. Verify mechanical footprint and electrical parameter alignment before replacing existing units. Generic equivalents may not match the specific acoustic tuning or digital interface timing requirements.