T5838

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.

Spec	High Quality Mode	Low‑Power Mode	Ultrasonic Mode
Sensitivity	−41 dB FS ±1 dB	−26 dB FS ±1 dB	−41 dB FS ±1 dB
SNR	68 dBA	65 dBA	68 dBA
Current	310 µA	120 µA	500 µA
AOP	133 dB SPL	119 dB SPL	133 dB SPL
Clock	2.0 – 3.7 MHz	400 – 800 kHz	4.2 – 4.8 MHz
L.F. Rolloff	28 Hz
Package	3.5 × 2.65 × 0.98 mm, Bottom Port

Technical Data

Featured Markets

Smartphones
Smart Speakers
Headsets
Voice-Enabled TV Remotes
Smart TVs & Set Top Boxes
Wearables

Features & Benefits

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

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