3.3.2 Gain
The Gain defines the digital Gain applied to the measured data. The accumulated result
from an oversampled measurement is scaled down based on the gain. Standard setting and
usage target is Gain = 1. The system must be tuned so the touch delta is between 40-60
counts. The Gain, in addition to the Threshold setting, can be
used to adjust the sensitivity of each button.
Note: The minimum
recommended ratio of Filter Level to digital Gain is eight. For example, if digital
Gain is configured as two, then oversampling must be configured to 16.
Steps to Configure GAIN
Writing in the Node Gain (GAIN[n]) register will update the Gain value for Button N.. Refer to Configuration Summary for more details.