SPC11P8LM4H-1

Overview

The SPC11P8LM4H-1 is a miniature, high-performance, low-power MEMS microphone manufactured by Syntiant. It features a bottom port location and delivers a digital PDM output format. The device operates within a supply voltage range of 1.08 V to 1.98 V. It exhibits an SNR of 64 dB and a sensitivity of -37 dB. The physical dimensions are 3.25 mm in length, 2.25 mm in width, and 0.8 mm in depth. It supports an operating temperature range from -40°C to +100°C.

Feature Summary

• Integrates a bottom port acoustic design for compact form factor applications
• Delivers single-bit PDM digital output for direct interface with processors
• Operates on low power consumption suitable for battery-powered devices

Applications

• Voice-enabled smart home assistants
• Wearable audio recording devices
• Internet of Things (IoT) voice sensors

Procurement Notes

Verify the specific manufacturing lot and revision level against the latest official datasheet before integration. Confirm that the bottom port orientation aligns with the mechanical enclosure design to ensure optimal acoustic performance. Ensure the PCB layout matches the recommended solder pad specifications to prevent thermal or mechanical stress during assembly.

Selection Notes

Select this component when a small footprint and low power consumption are critical constraints. The bottom port configuration allows for placement beneath other components or within tight chassis spaces. Verify compatibility with the host processor's PDM interface timing requirements and ensure the supply voltage rails remain stable within the specified 1.08 V to 1.98 V window.

Part Context

This part belongs to the SiSonic family of digital microphones from Syntiant. These devices combine silicon MEMS sensing elements with integrated analog-to-digital conversion circuitry. The SPH/SPC series designation indicates specific acoustic and electrical characteristics tailored for modern mobile and IoT voice interfaces.

FAQ

What is the acoustic port location for the SPC11P8LM4H-1?

The acoustic port is located at the bottom of the package.

Does the SPC11P8LM4H-1 provide an analog or digital output?

It provides a digital Pulse Density Modulation (PDM) output.