User guide

38 Document No. 001-64846 Rev. *A Getting Started with CapSense®
Figure 3-12. Average Filter Noise (16 Samples)
Figure 3-13. Average Filter Finger Touch (16 Samples)
The above examples are representative of power supply noise. The filter works well in this example because the
period of the noise is close to the length of the filter (N = 16).
For more information about how to implement an average filter, refer to code example CSA Software Filters with
EzI2Cs Slave on CY8C20xx6.