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Syntiant SPM0192LR5H-1 SiSonic™ MEMS Microphone

Syntiant SPM0192LR5H-1 SiSonic™ MEMS Microphone is a high Signal-to-Noise Ratio (SNR), high Acoustic Overload Point (AOP), bottom port silicon microphone. This microphone consists of an acoustic sensor, a low-noise input buffer, and a differential output amplifier supporting optional single-ended mode. The SPM0192LR5H-1 microphone's low phase distortion lends to superior algorithm performance and its differential mode configuration improves noise immunity to power supply variations. 

The SPM0192LR5H-1 microphone's high SNR enables far-field voice pick-up for IoT applications and its high AOP provides a large dynamic range for barge-in applications. Typical applications include voice-enabled smart speakers/hubs (IoT), voice-enabled home/industrial accessories (thermostats, light bulbs, remote controls, TVs), speakerphones, and Active Noise Cancellation (ANC) headsets.

Features

  • Differential/single-ended output
  • Low distortion/high AOP
  • High SNR
  • Flat frequency response
  • Low current
  • Sensitivity matching
  • Bottom port
  • Ultra-stable performance
  • Omnidirectional
  • Standard SMD reflow
  • LGA package

Applications

  • Voice-enabled smart speaker/hub (IoT)
  • Voice-enabled home/industrial accessories (thermostat, light bulb, remote control, and TV)
  • Speakerphones
  • Active Noise Cancellation (ANC) headsets
  • Digital action/still cameras
  • Portable music recorders

Specifications

  • 2.3V to 3.6V supply voltage range
  • Supply current:
    • 235μA (Vdd=3.6V)
    • 225μA (Vdd=2.75V)
  • Sensitivity:
    • -41.7dBV/Pa to -39.7dBV/Pa (94dB SPL at 1kHz single-ended)
    • -35.7dBV/Pa to -33.7dBV/Pa (94dB SPL at 1kHz differential)
  • Signal-to-noise ratio:
    • 70.5dBV/Pa (94dB SPL at 1kHz A-weighted single-ended mode)
    • 70.5dBV/Pa (94dB SPL at 1kHz A-weighted differential mode)
  • Near-ultrasonic SNR:
    • 83.9dB ((94dB SPL at 19kHz, BW=18.5kHz to 20kHz, SE)
    • 83.9dB ((94dB SPL at 19kHz, BW=18.5kHz to 20kHz, D)
  • Total Harmonic Distortion (THD):
    • 0.1% (94dB SPL at 1kHz)
    • 0.25% (115dB SPL at 1kHz)
  • Power supply rejection ratio:
    • 97dB (200mVpp sinewave at 1kHz, single-ended mode)
    • 94dB (200mVpp sinewave at 1kHz, differential mode)
  • 0.59V to 0.79V DC output voltage range
  • 380Ω maximum output impedance
  • ±0.25dB sensitivity drop
  • 30ms maximum startup time

Differential Mode Application Circuit

Application Circuit Diagram - Syntiant SPM0192LR5H-1 SiSonic™ MEMS Microphone

Mechanical Diagram

Mechanical Drawing - Syntiant SPM0192LR5H-1 SiSonic™ MEMS Microphone

Additional Resources

Publicado: 2025-09-22 | Actualizado: 2025-12-29