TDK CH101, User Manual

Page: 5 / 23

AN-000349
Document Number: AN-000349
Page 5 of 23
Revision: 1.0
2 REQUIREMENTS AND SETUP
2.1 LIST OF REQUIRED HARDWARE
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DK-CHx01 evaluation kit (SmartSonic board)
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Micro-USB cable
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(2) CH101-02ABR sensor modules (optimized for pitch-catch applications)
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(2) 8-position FFC cables to connect the sensors to the SmartSonic board
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Dual sensor horn Acoustic Interface designed for this cliff and floor type detect application (see Section 2.2 for details)
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Miscellaneous hardware to mount and secure the dual sensor horn
2.2 ACOUSTIC INTERFACE
The two-sensor cliff detection reference design utilizes a carefully designed Acoustic Interface to achieve optimal performance.
Dimensions, tolerances, and assembly requirements for the Acoustic Interface are provided in more detail in the Appendix. Dimensions
of alignment and mounting features that are not specified in the drawing are not critical to performance and such features can be
modified as needed. A picture of the reference design Acoustic Interface is shown below.
Figure 2. (a) Side view, (b) top isometric view and (c) bottom isometric view of the 2-sensor cliff detect Acoustic Interface reference design.
Figure 3. Cross section view of the 2-sensor cliff detect Acoustic Interface reference design, highlighting the components in the module.