Copyright

 Cirrus Logic, Inc. 2016

(All Rights Reserved)

http://www.cirrus.com

DS1126DB1

NOV '16

Customer Demo Board for the WM7121P

Features

• WM7121P MEMS microphone

• Flexible PCB for full acoustic validation

— Pressure field

—Free field

• Plug-and-play interface to smart codec main board

— Functional test

— Full signal path setup with smart codec

— System development and prototyping

— Algorithm verification

Description

The CDB7121P is a flexible PCB for full electrical and

acoustic validation of the WM7121P MEMS microphone.

The CDB7121P is designed to connect to test equipment

via on board test points or via a codec main board with

mating edge connector socket.

The CDB7121P is ideally suited for pressure field acoustic

measurements. Furthermore, the flexible region can be

trimmed to enable accurate free field measurements to be

made.

The CDB7121P also serves as a component and layout

reference for the WM7121P.

Ordering Information

CDBWM7121-M-2

Customer Demo Board

Test points

Edge connector pads

Power

and I/O

Power

and I/O

Trim

line

Acoustic

port hole

WM7121P

CDB7121P