2.9 Tune and Check

This section provides an overview of the calibration and tuning capabilities of the ATA8510/15 to achieve the best system performance regarding fabrication tolerances as well as temperature drift and voltage drift. Some of the tune and check features influence the behavior of certain operating modes only, while others can be used across the modes. The following tune and check features are available in the ATA8510/15:

Antenna tuning
Temperature measurement
Polling cycle/SRC calibration
FRC calibration
VCO tuning
System self check and calibration
Register refreshing
RF calibration

A tune and check feature can be executed under the following operating conditions:

During system initialization
During start-up of a receive or transmit mode
During the self-check operation in PollingMode
During execution of TCMode activated by the “Calibrate and Check” SPI command