SLOA313 May 2021 AFE7070 , AFE7071
The compensation algorithm must know the frequency and temperature of operation. The algorithm computes the modified correction parameters in three steps given 3 room-temperature calibration points at the min, mid, and max frequencies in the band. First, the algorithm linearly interpolates between the calibration points to determine the modified correction at the specific frequency of operation. Next, the temperature slope is interpolated across frequency to derive the modified temperature slope at the frequency of operation. Last, the temperature slope is used to adjust the correction parameters for the specific temperature of operation.