Power detector calibration in integrated circuits

A method, comprising:

• generating, by a first digital adder, a gain offset by at least adding gain calibration data from at least one non-volatile memory and gain command data from at least one static memory;
• modifying, by an amplitude gain circuit and based at least in part on the gain offset, an amplitude of a first output signal of a first antenna, wherein the modified amplitude of the first output signal is provided to enable pre-calibration of the first output signal;
• measuring, by a power detector, an output power of the first output signal;
• generating, by at least one processor, a difference between the measured output power and an expected output power;
• and
• adjusting, by the at least one processor, gain command data in response to the difference between the measured output power and the expected output power.

An apparatus, comprising:

• means for generating a gain offset by at least adding gain calibration data from non-volatile memory and gain command data from static memory;
• means for modifying, based at least in part on the gain offset, an amplitude of a first output signal of a first antenna, wherein the modified amplitude of the first output signal is provided to enable pre-calibration of the first output signal;
• means for measuring an output power of the first output signal;
• means for generating a difference between the measured output power and an expected output power;
• and
• means for adjusting gain command data in response to the difference between the measured output power and the expected output power.

A non-transitory computer-readable medium storing instructions, which when executed by at least one data processor, result in operations comprising:

• generating a gain offset by at least adding gain calibration data from at least one non-volatile memory and gain command data from at least one static memory;
• modifying, based at least in part on the gain offset, an amplitude of a first output signal of a first antenna, wherein the modified amplitude of the first output signal is provided to enable pre-calibration of the first output signal;
• measuring an output power of the first output signal;
• generating a difference between the measured output power and an expected output power;
• and
• adjusting gain command data in response to the difference between the measured output power and the expected output power.