SWRZ099B April 2020 – March 2022 AWR6843AOP
Digital Temperature Sensor Readings Differ From Analog Temperature Sensors
The local heating in the digital circuitry can cause the readings from digital temperature sensor to differ from that of the analog temperature sensors (Tx, Rx, and PM).
Implication: The temperature monitor API computes the maximum temperature difference across different sensors and compares against the programmed threshold (TEMP_DIFF_THRESH). Higher difference between analog and digital temperature sensors can cause the monitor to fail.
In temperature monitor configuration API (AWR_MONITOR_TEMPERATURE_CONF_SB), if the thresholds for the digital temperature sensors (DIG_TEMP_THRESH_MIN and DIG_TEMP_THRESH_MAX) are both set to zero, the BSS will ignore the digital sensor while computing the temperature difference across sensors to compare against the programmed threshold value (TEMP_DIFF_THRESH).
The digital temperature values (verbose output) from the API need to be validated externally by the processor.