Patent ID: 8644427

Claim:
A radio frequency receiver, comprising: a first RF preprocessing circuit configured to receive a first RF input signal associated with a first input channel and to generate output signals indicative of a first intermediate frequency (IF) signal; a second RF preprocessing circuit configured to receive a second RF input signal associated with a second input channel and to generate output signals indicative of a second IF signal; a signal selector configured to select a set of signals from the output signals of the first and second RF preprocessing circuits; a configurable intermediate frequency (IF) filter circuit configured to filter the set of signals selected by the signal selector; and a dual analog-to-digital converter (ADC) circuit comprising a first ADC circuit and a second ADC circuit, the dual ADC circuit being configured to receive the filtered signals from the IF filter circuit and to digitize the filtered signals using one or both of the first and second ADC circuits based on one or more operation modes, the dual ADC circuit being configured to generate digital output signals indicative of one or more digitized IF signals, wherein when the receiver is configured to receive one input channel only on one of the first and second RF preprocessing circuits, the dual ADC circuit is configured in a first operation mode to receive at least one filtered signal associated with the one input channel and to digitize the at least one filtered signal using at least one of the first and second ADC circuits; and wherein when the receiver is configured to receive two input channels on the first and second RF preprocessing circuits respectively, the dual ADC circuit is configured in a second operation mode to receive filtered signals associated with the two input channels and to digitize the filtered signals associated with each input channel using the first and second ADC circuits respectively.