3.3.4.4 FREQ_AUTOTUNE_MAX_VARIANCE

Sets the maximum variance for Frequency Hop Auto tune. When the 'Frequency Hop Auto-tune' is enabled, the touch measurement

frequencies are automatically changed based on noise levels. If the noise level is more than the threshold for the Tune in Count number of measurement cycles, then the noisy frequency will be replaced with another frequency. This value could be decided by analyzing the touch delta and should be set to less than the lowest touch delta. For effective operation, the touch delta across multiple sensors should be of the same range.