EVAL-ADMP421Z Analog Devices Inc, EVAL-ADMP421Z Datasheet

EVAL-ADMP421Z

Manufacturer Part Number

EVAL-ADMP421Z

Description

Omnidirectional Microphone Eval. Board

Manufacturer

Analog Devices Inc

Series

iMEMS®r

Datasheet

1.EVAL-ADMP421Z.pdf (2 pages)

Specifications of EVAL-ADMP421Z

Silicon Manufacturer

Analog Devices

Application Sub Type

Microphone

Kit Application Type

Audio / Video / TV

Silicon Core Number

ADMP421

Main Purpose

Audio, MEMS Omnidirectional Microphone

Embedded

Utilized Ic / Part

ADMP421

Primary Attributes

Digital Output, 100Hz ~ 10kHz Frequency Response

Secondary Attributes

-26dB Sensitivity, 60.5dB SNR

Kit Contents

Bypass Capicator, DC Blocking Capicator

Rohs Compliant

Yes

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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GENERAL DESCRIPTION

The EVAL-ADMP421Z is a simple evaluation board that allows

quick evaluation of the performance of the ADMP421 bottom

port digital output omnidirectional microphone. The EVAL-

ADMP421Z has a dual-row 12-pin, 0.1 inch spaced header for

access to all microphone pins. The EVAL-ADMP421Z is

designed to plug directly into Connector J6 on the Analog

Devices, Inc., EVAL-ADAU1761Z evaluation board (see also

the

The dimensions of the EVAL-ADMP421Z are 13 mm × 18 mm.

The evaluation board is RoHS-compliant.

EVALUATION BOARD CIRCUIT

The schematic of the EVAL-ADMP421Z is shown in Figure 1.

See the ADMP421 data sheet for complete description and

specifications of the microphone.

The PCB layout of the EVAL-ADMP421Z is shown in Figure 2.

The factory-installed 0.1 μF capacitor, C1, is a bypass capacitor

that reduces supply noise and ensures proper microphone

operation. The EVAL-ADMP421Z connector pin functions

are described in Table 1.

Table 1.

Pin No.

2, 4, 5, 6, 8, 10, 12

PLEASE SEE THE LAST PAGE FOR AN IMPORTANT

WARNING AND LEGAL TERMS AND CONDITIONS.

One Technology Way • P.O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 • www.analog.com

EVAL-ADMP421Z Bottom Port Digital Output MEMS Microphone Evaluation Board

ADAU1761

product page).

Description

GND

Not connected

CLK

L/R SELECT

DATA

Rev. 0 | Page 1 of 2

Evaluation Board User Guide

L/R SELECT

DATA

GND

CLK

Figure 2. PCB Layout

Figure 1. Schematic

ADMP421

ANALOG

DEVICES

CLK

L/R SELECT

ADMP421

GND

DATA

0.1µF

UG-118

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EVAL-ADMP421Z Summary of contents

Page 1

... The schematic of the EVAL-ADMP421Z is shown in Figure 1. See the ADMP421 data sheet for complete description and specifications of the microphone. The PCB layout of the EVAL-ADMP421Z is shown in Figure 2. The factory-installed 0.1 μF capacitor, C1 bypass capacitor that reduces supply noise and ensures proper microphone operation. The EVAL-ADMP421Z connector pin functions are described in Table 1 ...

Page 2

... Evaluation Board for any other purpose. Furthermore, the license granted is expressly made subject to the following additional limitations: Customer shall not (i) rent, lease, display, sell, transfer, assign, sublicense, or distribute the Evaluation Board; and (ii) permit any Third Party to access the Evaluation Board. As used herein, the term “ ...

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