SPH1611LR5H-1

Overview

The SPH1611LR5H-1 is a miniature, high-performance, low-power analog bottom port silicon MEMS microphone manufactured by Syntiant. It operates within a supply voltage range of 1.5 V to 3.6 V and draws current consistent with low-power design requirements. The device features an omnidirectional acoustic response with a frequency range of 100 Hz to 10 kHz. Key electrical parameters include a sensitivity of -38 dB ±1 dB at 94 dB SPL and a signal-to-noise ratio (SNR) optimized for clear audio capture. The component utilizes solder pads for surface mount technology (SMD/SMT) installation.

Feature Summary

• Bottom port silicon MEMS architecture for compact integration
• Analog output suitable for direct interface with standard audio processing circuits
• Omnidirectional polar pattern ensuring uniform sound pickup from all directions

Applications

• Voice recognition systems requiring low power consumption
• Mobile communication devices needing miniature form factors
• Consumer electronics with strict size constraints

Procurement Notes

Verify the manufacturer status as Syntiant, noting that Knowles Audio Products was previously associated with this series. Confirm the specific suffix LR5H-1 matches the required package and tape/reel specifications. Ensure compatibility with the intended operating voltage range of 1.5 V to 3.6 V. Check for any obsolescence notices or lifecycle changes directly from the manufacturer's official documentation before finalizing procurement plans.

Selection Notes

Select this component when a low-profile, analog-output MEMS microphone is required for space-constrained designs. It is appropriate for applications prioritizing low current draw and broad frequency response over digital PDM interfaces. Compare sensitivity and SNR specifications against other bottom-port models in the Syntiant portfolio to ensure alignment with specific acoustic performance targets and system noise budgets.

Part Context

This part belongs to the Syntiant MEMS microphone family, which includes various analog and digital options. The SPH1611LR5H-1 represents the analog variant within this lineup, distinguished by its continuous voltage output rather than a digital bitstream. It shares architectural similarities with other bottom-port microphones in the series but is specifically tuned for analog signal chain integration.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Users should consult official Syntiant documentation for qualified alternatives or cross-reference with similar bottom-port analog MEMS microphones if direct substitution is necessary.