Techniques for controlling operation of control loops in a receiver

摘要

Techniques for controlling operation of control loops in a receiver are described. The operation of at least one control loop is modified in conjunction with a change in operating state, which may correspond to a change in linearity state, gain state, operating frequency, antenna configuration, etc. A change in linearity state may occur when jammers are detected and may cause bias current of analog circuit blocks to be adjusted. The at least one control loop to be modified may include a DC loop, an AGC loop, etc. The operation of a control loop may be modified by disabling the control loop or changing its time constant prior to changing operating state, waiting a predetermined amount of time to allow the receiver to settle, and enabling the control loop or restoring its time constant after waiting the predetermined amount of time.

主权项

1. An apparatus, configured to:
adjust a bias current of at least one analog circuit block in a receiver; and modify operation by preventing an update of at least one control loop separate from both the at least one analog circuit block and control of the bias current during the adjustment of the bias current.