Abstract: At least one adjustable gain analog amplifier (120, 124 and 128) in an analog line-up (102) amplifies by a gain an analog signal at an input of the analog line-up (102). The at least one adjustable gain analog amplifier (120, 124 and 128) is operable at one or more gains. At least one digital estimation device (134, 140 and 146) receives signal via an output (108) of the analog line-up (10) and provides a digital signal estimate representative of an analog signal at an input of a respective one of the at least one adjustable gain analog amplifier (120, 124 and 128) in the analog line-up (102). An AGC controller (152) monitors the digital signal estimate. The AGC controller (152) adjusts the gain of the at least one analog amplifier (120, 124 and 128). An RF receiver and an integrated circuit utilizing the novel features are also disclosed.

Abstract: At least one adjustable gain analog amplifier (120, 124 and 128) in an analog line-up (102) amplifies by a gain an analog signal at an input of the analog line-up (102). The at least one adjustable gain analog amplifier (120, 124 and 128) is operable at one or more gains. At least one digital estimation device (134, 140 and 146) receives signal via an output (108) of the analog line-up (10) and provides a digital signal estimate representative of an analog signal at an input of a respective one of the at least one adjustable gain analog amplifier (120, 124 and 128) in the analog line-up (102). An AGC controller (152) monitors the digital signal estimate. The AGC controller (152) adjusts the gain of the at least one analog amplifier (120, 124 and 128). An RF receiver and an integrated circuit utilizing the novel features are also disclosed.

Abstract: An automatic gain control system (100) and methods thereof for a receiver for providing a wide range of continuous gain control has been discussed. The AGC includes an input stage (120) for providing an indication of a strength of a received signal; an attenuator stage (107) operable to switch a fixed amount of attenuation for the received signal; a variable attenuator (109) to provide a variable amount of attenuation for said received signal, and a controller (135) responsive to said indication for providing a variable control signal (145) to the variable attenuator; wherein the controller concurrently changes the variable control signal to change in the opposite direction the variable amount of attenuation by approximately the fixed amount of attenuation whenever the attenuator stage is switched, thereby extending the range of continuous gain control beyond the range of the variable attenuator.

Abstract: A power measurement element (106) measures (302) the wide-band received signal power of a receiver (102), and a wide-band AGC system (108) transfers (306) receiver gain control from an on-channel AGC system (110) to the wide-band AGC system, when the wide-band received signal power exceeds a pre-programmed threshold for longer than a pre-programmed delay time. The wide-band AGC system is arranged and programmed to decrease (308) a front-end gain of the receiver through a plurality of gain steps of a pre-programmed size (208) applied at a pre-programmed rate until the received wide-band signal power falls below the pre-programmed threshold.

Abstract: A power measurement element (106) measures (302) the wide-band received signal power of a receiver (102), and a wide-band AGC system (108) transfers (306) receiver gain control from an on-channel AGC system (110) to the wide-band AGC system, when the wide-band received signal power exceeds a pre-programmed threshold for longer than a pre-programmed delay time. The wide-band AGC system is arranged and programmed to decrease (308) a front-end gain of the receiver through a plurality of gain steps of a pre-programmed size (208) applied at a pre-programmed rate until the received wide-band signal power falls below the pre-programmed threshold.

Abstract: An automatic gain control system (100) and methods thereof for a receiver for providing a wide range of continuous gain control has been discussed. The AGC includes an input stage (120) for providing an indication of a strength of a received signal; an attenuator stage (107) operable to switch a fixed amount of attenuation for the received signal; a variable attenuator (109) to provide a variable amount of attenuation for said received signal, and a controller (135) responsive to said indication for providing a variable control signal (145) to the variable attenuator; wherein the controller concurrently changes the variable control signal to change in the opposite direction the variable amount of attenuation by approximately the fixed amount of attenuation whenever the attenuator stage is switched, thereby extending the range of continuous gain control beyond the range of the variable attenuator.