ANALOG DEVICES UG-143 Service Manual

Evaluation Board User Guide

09053-001

ADMP405

V

DD

OUTPUT

GND

0.1µF

09053-002

09053-003

3.14mm

15mm

09053-004

UG-143

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

EVAL-ADMP405Z-FLEX: Bottom-Ported Analog Output MEMS Microphone

Evaluation Board

GENERAL DESCRIPTION

The EVAL-ADMP405Z-FLEX is a simple evaluation board that
allows quick evaluation of the performance of the ADMP405
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-ADMP405Z-FLEX consists of an ADMP405 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

Red VDD Power Supply. 1.5 V dc to 3.3 V dc and

White OUTPUT Analog Output Signal. 0.8 V dc offset,

Black GND Ground.

Mnemonic Description

250 µA maximum.

450 mV ac peak maximum, and 200 Ω Z

OUT.

EVALUATION BOARD CIRCUIT

Figure 1 shows the schematic of the EVAL-ADMP405Z-FLEX,
and Figure 2 shows the layout of the EVAL-ADMP405Z-FLEX.
See the ADMP405 data sheet for a complete description and
specifications of the microphone.

Figure 1. Evaluation Board Schematic

Figure 2. Evaluation Board Layout (Top View)

PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.

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

EVALUATION BOARD PHOTOGRAPH

Figure 4. Top and Bottom View

Rev. B | Page 1 of 2