AN‐000012 – Differential Analog Output MEMS Microphone Flex Evaluation Board User Guide

AN‐000012 – Differential Analog Output MEMS Microphone Flex Evaluation Board User Guide

This user guide applies to the following MEMS microphone evaluation boards:

  • EV_ICS‐40618‐FX
  • EV_ICS‐40619‐FX
  • EV_ICS‐40720‐FX
  • EV_ICS-40730-FX

This is a simple evaluation board that allow quick evaluation of the performance of differential output analog MEMS microphones. 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 evaluation board consists of a bottom port 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 describes the functions of the four connection wires. Table 2 explains the functional differences between the two microphones and evaluation boards.

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