T5919

T5828

T5837

T5838

T5848

SmartSound One

T3903

T5808

T5818

ICM-52000

ICS-41350

ICS-40212

T4086

ICS-40638

ICS-40800

T4076

ICS-40740

ICS-40214

ICS-40618

ICS-40720

ICS-40730

ICS-40619

ICS-40310

INMP510

T3902

ICS-43434

ICS-41351

ICS-43432

INMP621

INMP521

INMP522

ICS-40300

ICS-40216

The T3902 is a low‐power, low‐noise digital MEMS microphone in a small package. The T3902 consists of a MEMS microphone element and an impedance converter amplifier followed by a fourth‐order Σ‐Δ modulator. The pulse density modulated (PDM) interface allows two microphones to be time multiplexed on a data line using a single clock.

The T3902 has multiple modes of operation: High Performance, Low Power (AlwaysOn), Standard and Sleep. The T3902 has low power and high SNR in all operational modes. It has 126 dB SPL AOP in High Performance mode, and 120 dB SPL AOP in Standard and Low‐Power modes.

The T3902 is available in a small 3.5 × 2.65 × 0.98 mm surface‐mount package. It is reflow solder compatible with no sensitivity degradation.


Product Details

Part # Market Status Output Port Location SNR AOP Sensitivity Package Size LF Cutoff
UNITS: dBA dB SPL dbfs (mm) Hz
T3902
T3902
Production PDM Bottom 64.5 120 -26 3.5 × 2.65 × 0.98 36

Documentation & Resources

Features

  • 3.5 × 2.65 × 0.98 mm surface‐mount package
  • Low power: 185 μA in Low‐Power Mode
  • Extended frequency response from 36 Hz to >20 kHz
  • Sleep Mode: 12 μA
  • High power supply rejection (PSR): −97 dB FS
  • Fourth‐order Σ‐Δ modulator
  • Digital pulse density modulation (PDM) output
  • Compatible with Sn/Pb and Pb‐free solder processes
  • RoHS/WEEE compliant

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