SPV1142LR5H-1

Overview

The SPV1142LR5H-1 is a SiSonic™ MEMS omnidirectional microphone featuring analog output and bottom port configuration. It operates within a supply voltage range of 1.5 V to 3.6 V, with a frequency response spanning 25 Hz to 16 kHz. The device exhibits a sensitivity of -38 dB ±1 dB at 94 dB SPL and delivers a signal-to-noise ratio of 63 dB. Designed for surface mount technology, it utilizes solder pad termination and is housed in a compact rectangular form factor suitable for integration into audio-enabled electronic systems.

Feature Summary

• Omnidirectional acoustic pickup pattern for uniform sound capture
• Analog output interface compatible with standard audio processing circuits
• Bottom port design facilitating flexible PCB layout and sealing

Applications

• Voice recognition systems requiring high-fidelity audio input
• Smart home devices utilizing far-field microphone arrays
• Wearable electronics with strict size and power constraints

Procurement Notes

Verify the specific suffix LR5H-1 against official Syntiant documentation to confirm package type and tape/reel specifications. Ensure compatibility with existing board designs regarding footprint dimensions and soldering profiles. Cross-reference RoHS compliance status with current regulatory requirements before finalizing procurement orders.

Selection Notes

Select this component when a low-power, high-SNR analog MEMS microphone is required for voice-centric applications. The bottom port architecture offers advantages in acoustic sealing compared to top-port alternatives. Evaluate the 1.5 V to 3.6 V operating range against system power rails to ensure stable performance across varying supply conditions.

Part Context

This part belongs to the Syntiant SiSonic™ family of MEMS microphones, engineered specifically for advanced audio processing and machine learning applications. The series emphasizes high signal integrity and low noise floor characteristics. The SPV1142 variant represents a specific iteration within this portfolio, optimized for general-purpose voice capture tasks.

Replacement Considerations

KAS-700-0156 is an evaluation board associated with this microphone, not a direct electrical substitute. No officially confirmed direct replacement part numbers are documented in the provided source material.