Patent ID: 6577184
Filing Date: 2003-06-10
Classification: H03F

Abstract:
An apparatus comprising:a switched capacitor feedback circuit including (i) a plurality of input ports configured to receive a corresponding plurality of input signals therethrough, and (ii) at least one output port, the output port being configured to output an adjusting signal; wherein the corresponding plurality of input signals includes a number of primary signals and two or more reference signals, all of the signals being associated with a first timing phase of operation; and wherein the adjusting signal is produced based upon a comparison between the number of primary signals and at least one of the reference signals; a pair of active devices having gates thereof coupled together, the gates being configured to receive the adjusting signal; wherein the active devices are configured to (i) provide a gain to the adjusting signal in accordance with a predetermined gain factor, and (ii) facilitate an adjustment to the number of primary signals based upon the gain during a second timing phase of operation.