AMM-3538-B

$2.16

Description：ANALOG MICROPHONE -38DB 2VDC
Series：AMM
Mfr：PUI Audio, Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:2d28d94ba6c5 Category: Microphones Brand: PUI Audio, Inc.

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Product introduction

Product Detailed Parameters

Description：ANALOG MICROPHONE -38DB 2VDC
Series：AMM
Mfr：PUI Audio, Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Type：MEMS (Silicon)
Output Type：Analog
Direction：Omnidirectional
Frequency Range：20 Hz ~ 20 kHz
Sensitivity：-38dB ±1dB @ 94dB SPL
S/N Ratio：65dB
Impedance：300 Ohms
Voltage Range：2.4 V ~ 3.6 V
Current - Supply：160 µA
Port Location：Top
Ratings：-
Termination：Solder Pads
Size / Dimension：0.138" L x 0.104" W (3.50mm x 2.65mm)
Height (Max)：0.043" (1.10mm)
Shape：Rectangular
Grade：-
Qualification：-
Voltage - Rated：2.7 V

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AMM-3538-B

Overview

The AMM-3538-B is an analog MEMS microphone manufactured by PUI Audio. It features a sensitivity of -38 dB and a signal-to-noise ratio of 65 dB. The device operates at a supply voltage of 2.7 VDC with a current consumption of 250 uA. Its frequency range spans from 20 Hz to 20 kHz, and it has an impedance of 300 ohms. The physical dimensions are 3.5 mm in length, 2.65 mm in width, and 1 mm in depth. It functions within a temperature range of -40°C to +85°C.

Feature Summary

Utilizes dedicated pre-amplifier ASIC for high sensitivity and low distortion
Provides high dynamic range performance with high acoustic overload point
Features ultra-low current consumption suitable for battery-powered devices
Designed for surface mount assembly and high-temperature reflow soldering

Applications

Security monitoring equipment including glass break detection
Industrial machine monitoring for predictive maintenance
Driver cabin operator safety systems
Microphone arrays
Smart IoT consumer devices

Procurement Notes

Verify the specific ordering suffix matches the required voltage and package configuration. Confirm RoHS compliance status through official manufacturer documentation before integration. Ensure the analog output type aligns with the target circuit interface requirements. Cross-reference the pinout diagram with the PCB footprint design to prevent installation errors during assembly.

Selection Notes

Select this component when a small form factor with analog output is required. Consider the 2.7 VDC operating voltage for power budget calculations. Evaluate the 65 dB SNR against ambient noise levels in the target environment. Compare the 250 uA current draw against other MEMS options for efficiency optimization in portable applications.

Part Context

This part belongs to the PUI Audio MEMS microphone family, which integrates capacitive audio sensors with specialized ASICs. These components are engineered to deliver high signal-to-noise ratios and low total harmonic distortion. The series supports various packaging options to accommodate different surface mount manufacturing processes and thermal profiles.