Analog Devices: EVAL-ADMP441Z-FLEX Evaluation Board for the ADMP441 Omnidirectional Microphone

atomar — Fri, 15 Mar 2013 08:53:42 GMT

Current Revision posted to Documents by atomar on 3/15/2013 8:53:42 AM

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Kit Overview

The Analog Devices EVAL-ADMP441Z-FLEXEVAL-ADMP441Z-FLEX is a simple evaluation board that allows quick evaluation of the performance of the ADMP441ADMP441 MEMS microphone. The small size and low profile of the flexible PCB enables direct placement of the microphone into a prototype or an existing design for an in situ evaluation. The EVAL-ADMP441Z-FLEX consists of an ADMP441 microphone soldered to a flexible PCB. The only other component on the board is a 0.1 µF supply bypass capacitor.

The flex PCB is designed to mate to a ZIF connector with 1.0 mm pin spacing. The Molex 52610-107152610-1071 connector is included in the kit with the flex PCB. The flex PCB can be mated to the connector by first pulling out the connector’s tan clamp, inserting the flex PCB, and then pushing the clamp closed. Wires can be soldered directly to this connector’s pins or it can be mounted directly on a rigid PCB for evaluation. It is recommended to use 28 AWG or smaller wire for soldering to this connector’s pins. The PCB thickness at the pin edge is 0.3 mm.

Key Applications: Teleconferencing systems, Gaming consoles, Mobile devices, Laptops, Tablets, Security systems

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Technical Documents

Learning Center

Type	Description
User Guide	ADI: User Guide (UG-303) for EVAL-ADMP441Z-FLEX Bottom-Port I2S Output MEMS Microphone Evaluation Board
User Guide	ADI: User Guide (UG-362) for EVAL-ADMP441Z SDP Daughter Board for the ADMP441 I2S MEMS Microphone
Datasheet	ADI: Datasheet for ADMP441 Omnidirectional Microphone with Bottom Port and I2S Digital Output (Rev B)
Application Note	ADI: Application Note (AN-1140) for Microphone Array Beamforming
Application Note	ADI: Application Note (AN-1124) for Recommendations for Sealing ADI Bottom-Port MEMS Microphones from Dust and Liquid Ingress
Application Note	ADI: Application Note (AN-1112) for Microphone Specifications Explained
Application Note	ADI: Application Note (AN-1068) for Reflow Soldering of the MEMS Microphone
Application Note	ADI: Application Note (AN-1003) for Recommendations for Mounting and Connecting Analog Devices, Inc., Bottom-Ported MEMS Microphones

Design Elements

Type	Description
Simulation Model	ADI: IBIS model for ADMP441
Reference Design	ADI: Reference design for Avnet LX9 MicroBoard (source code)
Reference Design	ADI: Reference design for ADMP441 FMC-SDP Interposer and Evaluation Board / Xilinx KC705
Application Library	ADI: Application Library for BeMicro FPGA Project for ADMP441 with Nios driver

Video

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Kit Features

Key Features for ADMP441ADMP441:

Digital I2S interface with high precision 24-bit data
High SNR of 61 dBA
High Sensitivity of -26 dBFS
Flat frequency response from 60 Hz to 15 kHz
Low current consumption of 1.4 mA
High PSR of -75 dBFS
Small 4.72 mm × 3.76 mm × 1 mm surface-mount package
Compatible with Sn/Pb and Pb-free solder processes

Kit Contents

The Analog Devices EVAL-ADMP441Z-FLEXEVAL-ADMP441Z-FLEX is supplied with below contents:

Evaluation Board

Tags: admp441, eval-admp441z-flex, analog_devices