SPH1642HT5H-1

Overview

The SPH1642HT5H-1 is an analog MEMS silicon microphone from the SiSonic series. It features an omnidirectional acoustic port located on the top surface. The device operates within a voltage range of 1.5 V to 3.6 V and draws a supply current of 185 µA. Sensitivity is specified at -38 dB ±1 dB relative to 1 V/Pa at 94 dB SPL. The frequency response spans from 50 Hz to 10 kHz with a signal-to-noise ratio of 65 dB. Acoustic impedance is 500 Ohms. The component measures 3.50 mm x 2.65 mm x 1.10 mm and utilizes solder pad termination.

Feature Summary

• Omnidirectional acoustic sensitivity via top-mounted port
• Analog output signal generation
• Low power consumption profile

Applications

• Voice recognition systems
• Consumer audio recording devices
• Hands-free communication modules

Procurement Notes

Verify part status as obsolete through official manufacturer channels before procurement planning. Confirm RoHS compliance and moisture sensitivity level classifications for handling requirements. Ensure compatibility with existing PCB footprint dimensions and soldering profiles during integration assessment.

Selection Notes

Select this component when top-port omnidirectional pickup is required for compact form factors. Evaluate the 1.5 V to 3.6 V operating range against system power constraints. Consider the 50 Hz to 10 kHz frequency response limits for specific audio bandwidth requirements.

Part Context

This model belongs to the Syntiant SiSonic series of silicon microphones. It represents a specialized MEMS acoustic transducer designed for embedded audio applications requiring small footprints and analog signal output capabilities.

Replacement Considerations

Public confirmed substitute part numbers are not available in verified documentation due to the obsolete status of this specific model.