Illustration of T5838, TDK MEMS microphone
production

T5838

Bottom Port PDM Digital Output Multi‑Mode Microphone

The T5838 is a low noise, high AOP digital Pulse Density Modulation (PDM) microphone using a fifth-order Σ‑Δ modulator. It also features Acoustic Activity Detect (AAD), a new ultra-low power edge processing feature consuming as low as 20 µA.

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Features

  • Industry standard High Quality Mode sensitivity of -37 dBFS and Low-Power Mode sensitivity of -21 dBFS
  • Low power consumption in all modes; ~50 – 70% lower than competitors
  • High SNR and AOP in all operational modes
  • Acoustic Activity Detect w/ programmable thresholds & filters with power consumption as low as 20 uA

Target market & applications

Smartphones, Smart Speakers, Headsets, TV Remotes, Smart TV, Set-top Box, Wearables

Key attribute

Ultra-Low Power, High SNR, Multi-Mode PDM Microphone with AAD

Product details

Product key details

Operation
-
-
Package Size
0.98 x 3.50 x 2.65
Output Type
PDM
-
Port Location
bottom
-
Snr
68.00
-
Aop
133.00
-
Sensitivity (1 KHz, 94 DB SPL)
-
-
Sensitivity DB FS ±1 DB
-41.00
-
Lf Cutoff
28
-
Status
production
production

Development hardware

Illustration of EV-T5838-fx2, evaluation board for TDK MEMS microphone T5838

EV_T5838-FX2

Flexible PCB Evaluation Module for T5838

Documentation and resources

Explore our complete library of technical resources, easily filtered by application or product.

Datasheet / Product Brief

DS-000383 – T5838 Datasheet
Version1.1
Updated2025-11-10
Download

App Notes & User Guides

AN-100 – MEMS Microphone Handling and Assembly Guide
Version1.5
Updated2017-06-12
Download
AN-1003 – Recommendations for Mounting and Connecting InvenSense MEMS Microphones
Version1.0
Updated2013-12-31
Download
AN-1112 – Microphone Specifications Explained
Version1.1
Updated2016-06-15
Download
AN-1124 – Recommendations for Sealing InvenSense Bottom-Port MEMS Microphones from Dust and Liquid Ingress
Version1.0
Updated2014-03-21
Download
AN-1140 – Microphone Array Beamforming
Version1.0
Updated2013-12-31
Download
AN-0078 – High-Performance Digital MEMS Microphone Simple Interface to SigmaDSP Audio Codec
Version1.0
Updated2014-02-22
Download
AN-000048 – PDM Digital Output MEMS Microphone Flex Evaluation Board User Guide
Version1.2
Updated2020-06-01
Download
AN-000278 – T5838 Flex EVB User Guide
Version1.2
Updated2022-08-02
Download
Understanding Microphone Sensitivity
Version1.0
Updated
Download

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