Evaluation Board User Guide

UG-445

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-ADMP411Z-FLEX: Bottom-Ported Analog Output MEMS Microphone

Evaluation Board

PLEASE SEE THE LAST PAGE FOR AN IMPORTANT

WARNING AND LEGAL TERMS AND CONDITIONS.

Rev. 0 | Page 1 of 2

GENERAL DESCRIPTION

The EVAL-ADMP411Z-FLEX is a simple evaluation board that

allows quick evaluation of the performance of the ADMP411

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-ADMP411Z-FLEX consists of an ADMP411 microphone

soldered to a flexible PCB with color-coded wires attached. The

only other component on the board is a 0.1 μF supply bypass

capacitor.

Table 1. Pin Function Descriptions

Wire

Color

Mnemonic

Description

Red

V

DD

Power Supply. 1.5 V dc to 3.3 V dc and

250 µA maximum.

White

OUTPUT

Analog Output Signal. 0.8 V dc offset,

316 mV ac peak maximum, and 200 Ω Z

OUT.

Black

GND

Ground.

EVALUATION BOARD CIRCUIT

Figure 1 shows the schematic of the EVAL-ADMP411Z-FLEX,

and Figure 2 shows the layout of the EVAL-ADMP411Z-FLEX.

See the ADMP411 data sheet for a complete description and

specifications of the microphone.

GND

OUTPUT

ADMP411

0.1µF

Figure 1. Evaluation Board Schematic

Figure 2 . Evaluation Board Layout (Top View)

13.5mm

4.30mm

Figure 3. Evaluation Board Dimensions in Millimeters (Wires Not Included)

EVALUATION BOARD PHOTOGRAPH

Figure 4. Top and Bottom View