UG-445 Datasheet, PDF (1/2 Pages) Analog Devices – EVAL-ADMP411Z-FLEX: Bottom-Ported Analog Output MEMS Microphone Evaluation Board

Evaluation Board User Guide
UG-445
One Technology Way • P.O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: [phone] • Fax: [phone] • www.analog.com
EVAL-ADMP411Z-FLEX: Bottom-Ported Analog Output MEMS Microphone
Evaluation Board
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
Black GND
Analog Output Signal. 0.8 V dc offset,
316 mV ac peak maximum, and 200 Ω Z_OUT.
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.
V_DD
0.1µF
OUTPUT
ADMP411
GND
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
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
Figure 4. Top and Bottom View
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