TDK InvenSense

T3902 Low-Power PDM Microphone

TDK InvenSense's T3902 multi-mode bottom-port MEMS microphone enhances voice-based services

Image of TDK/Invensense's T3902 Low-Power PDM MicrophoneTDK InvenSense’s T3902 low-power pulse density modulation (PDM) microphone for mobile, IoT, and other consumer devices. The T3902 is an ultra-low power, low noise, multi-mode bottom-port MEMS microphone, enhancing voice-based services which are now commonplace in many devices and homes. The microphone offers an exceptionally efficient 185 µA ultra-low power mode, high SNR of 64.5 dB, and high acoustic overload point (AOP) of 120 dB in a 3.5 mm x 2.65 mm x 0.98 mm package. The microphone’s always on functionality in low-power mode enables immediate accessibility upon wake command. The T3902 has been developed to meet the growing demands of the high-performance, ultra-low power audio markets.

Features
  • 3.5 mm × 2.65 mm × 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 PDM output
  • Compatible with Sn/Pb and Pb-free solder processes
  • RoHS/WEEE compliant
Applications
  • Mobile devices
  • Wearables
  • Tablets/displays
  • Ruggedized computers
  • STD/smart TVs
  • Remote controls

T3902 Low-Power PDM Microphone

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
MIC MEMS DIGITAL PDM OMNI -32DBMMICT390200012MIC MEMS DIGITAL PDM OMNI -32DB105936 - Immediate$1.21View Details
Published: 2020-08-13