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Product Detailed Parameters
- Description：MICROPHONE MEMS HARDY-TOPH
- Series：-
- Mfr：Syntiant
- Package：Bulk
- Type：-
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- Termination：-
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Overview
The SPH1642HT5HT is a miniature, high-performance, low-power silicon MEMS microphone manufactured by Syntiant. It features an analog output and omnidirectional sound pickup with a top port configuration. The device operates within a voltage range of 1.5 V to 3.6 V and draws a supply current of 185 µA. It provides a sensitivity of -38dB ±1dB at 94dB SPL and maintains a signal-to-noise ratio of 65dB. The frequency response spans from 50 Hz to 10 kHz, with an impedance of 500 Ohms. The component measures 3.50mm x 2.65mm x 1.10mm and utilizes solder pad termination.
Feature Summary
- Miniature top-port silicon MEMS design for compact integration
- Low power consumption suitable for battery-operated devices
- High precision matched sensitivity for consistent audio performance
Applications
- Always-on audio applications requiring deep learning inference
- Speech recognition systems in consumer electronics
- Edge-AI deployments for real-time audio processing
Procurement Notes
Verify the specific suffix HT5HT against official Syntiant documentation to confirm package type and tape/reel specifications. Confirm RoHS compliance status and moisture sensitivity level prior to PCB assembly. Check for obsolescence notices or PCN updates as this series may have lifecycle changes. Ensure ESD handling protocols are followed during storage and installation.
Selection Notes
Select this component when a low-profile, omnidirectional analog microphone is required for edge AI or speech processing tasks. Consider the 185 µA supply current for power-constrained designs. Verify that the 500 Ohm impedance matches the input requirements of the downstream amplifier or ADC. Ensure the 50 Hz to 10 kHz bandwidth covers the target application's acoustic needs.
Part Context
This part belongs to the SiSonic™ SPH series, which includes automotive-grade and standard silicon microphones engineered for high reliability. Syntiant leverages extensive sensor manufacturing experience to provide components compliant with AEC-Q103-003 for automotive use. The series supports various packaging options including tape and reel for automated assembly.
Replacement Considerations
Check for direct substitutes within the SiSonic™ family such as SPH1642HT5H variants. Verify pinout compatibility and electrical parameter alignment before substitution. Consult official Syntiant cross-reference guides for qualified replacements.
