SPH0641HT4H-1

Description：MIC SISONIC DIGITAL
Series：-
Mfr：Syntiant
Package：Tape & Reel (TR)

SKU:67e75a1b79fb Category: Microphones Brand: Syntiant

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Product introduction

Product Detailed Parameters

Description：MIC SISONIC DIGITAL
Series：-
Mfr：Syntiant
Package：Tape & Reel (TR)
Type：-
Output Type：-
Direction：-
Frequency Range：-
Sensitivity：-
S/N Ratio：-
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Voltage - Rated：-

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SPH0641HT4H-1

Overview

The SPH0641HT4H-1 is a silicon digital MEMS microphone from the SiSonic series, manufactured by Syntiant. It features an omnidirectional top-port acoustic design with a rectangular LGA-6 package measuring 2.0 mm x 2.0 mm x 1.1 mm. The device outputs Pulse Density Modulation (PDM) signals and operates within a supply voltage range of 1.6 V to 3.6 V. Key electrical specifications include a sensitivity of -26 dB ±1 dB at 94 dB SPL, a signal-to-noise ratio of 64.5 dBA, and a frequency response spanning 20 Hz to 20 kHz. It draws 1 mA of operating current and functions reliably between -40°C and +100°C.

Feature Summary

Top-port acoustic configuration for omnidirectional sound capture
Integrated PDM digital output interface
Ultra-low power consumption profile suitable for battery-operated devices
High signal-to-noise ratio performance in compact LGA-6 packaging

Applications

Voice-enabled smart home assistants
Wireless earbuds and hearing aids
Mobile smartphones and tablets
Wearable health monitoring devices

Procurement Notes

Verify the specific suffix HT4H against official datasheets to confirm the top-port orientation and tape-and-reel packaging format. Ensure compatibility with existing PCB footprints for the LGA-6 package. Confirm that the selected variant meets the required environmental temperature ratings for the intended deployment scenario before finalizing procurement orders.

Selection Notes

Select this component when a top-facing acoustic port is required for space-constrained designs. The integrated PDM output eliminates the need for external analog-to-digital conversion circuitry. Evaluate the 64.5 dBA SNR against application noise floor requirements. Consider the 1 mA current draw for strict power budget constraints in always-on voice detection systems.

Part Context

This part belongs to Syntiant’s SiSonic family of intelligent sensors, designed for edge AI applications. Unlike standard microphones, these components are optimized for low-power neural processing integration. The manufacturer focuses on physical AI solutions that combine sensing with on-device decision-making capabilities for speech and audio recognition tasks.