Patent ID: 7729675
Filing Date: 2010-06-01
Classification: H03G

Abstract:
1. An apparatus comprising: a front end amplifier to adjust a level of an incoming radio signal; an analog-to-digital converter (ADC) coupled to the front end amplifier to digitize the incoming radio signal and provide the digitized incoming radio signal to a signal path; and a gain compensation input coupled to the signal path to provide a gain change compensation signal received from a gain change compensation circuit to remove a level change present in the incoming radio signal after a change to a control value for the front end amplifier received from a controller, wherein the gain change compensation circuit includes a gain compensation path coupled to the gain compensation input, the gain compensation path including a first summer to sum a compensation signal with a feedback signal, a delay element coupled to an output of the first summer, and a second summer coupled between an output of the delay element and the gain compensation input.