T5919

T5828

T5837

T5838

T5848

SmartSound One

T3903

T5808

T5818

ICM-52000

ICM-41350

Analog Microphones

Analog MEMS Microphone with High SNR in Small Package Size

OVERVIEW

The T3903 is a multi-mode, low noise digital MEMS microphone in a small package. The T3903 consists of a MEMS microphone element and an impedance converter amplifier followed by a fourth-order Σ‑Δ modulator. The digital interface allows the pulse density modulated (PDM) output of two microphones to be time multiplexed on a single data line using a single clock.

The T3903 has multiple modes of operation: High Quality, Low‑Power (AlwaysOn), and Sleep. The T3903 has high SNR in all operational modes. It has 133dB SPL AOP in High Quality Mode and 120 dB SPL AOP in Low‑Power mode.

The T3903 is available in a standard 3.5 × 2.65 × 0.98 mm surface-mount package. It is reflow solder compatible with no sensitivity degradation.

T3903

NOT RECOMMENDED FOR NEW DESIGNS


Featured Markets

  • Smartphones
  • Microphone arrays
  • Tablet computers
  • Cameras


ProductPackage
Size
OutputPort
Location

SNR
(dBA)
AOP
(dB SPL)
Sensitivity
(dbfs)
LF Cutoff
(Hz)
Status
Purchase

T3903
3.5 × 2.65 × 0.98PDMBottom66133-3740NR/ND
(T5838
recommended)

T3903 Features & Benefits

  • 3.5 × 2.65 × 0.98 mm surface-mount package
  • Extended frequency response from 40 Hz to >20 kHz
  • Sleep Mode: 9 μA
  • 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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