Patent ID: 11870404
Assignee: QUALCOMM INCORPORATED
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 24:
25. An apparatus comprising:
an amplifier having a gain that is based on a bias voltage and an amplification control signal; and
a gain-stabilization circuit coupled to the amplifier and comprising:
a gain-error correction circuit; and
switching circuitry configured to selectively:
provide an input signal to an input of the amplifier; or
provide a calibration input voltage to the input of the amplifier and connect an output of the amplifier to the gain-error correction circuit,

the gain-error correction circuit configured to determine a gain error associated with the amplifier based on the switching circuitry connecting the output of the amplifier to the gain-error correction circuit, the gain error representing a difference between the calibration input voltage and an output voltage of the amplifier,

the gain-stabilization circuit configured to adjust at least one of the bias voltage or the amplification control signal based on the gain error.