Patent ID: 8442159

Claim:
A communications receiver comprising: a variable gain amplifier (VGA) configured to amplify received signals; a VGA controller configured to control the VGA; a plurality of analog to digital converter (ADC) circuits coupled to an output of the VGA; wherein the plurality of ADC circuits are operational when the communications receiver is configured to process signals of a first communications protocol, and wherein only a subset of the ADC circuits are operational when the communications receiver is configured to process signals of a second communications protocol; a first sub-circuit coupled to an output of the plurality of ADC circuits, the first sub-circuit operational when the communications receiver is configured to process signals of the first communications protocol and being turned off when the communications receiver is configured to process signals of the second communications protocol; and a second sub-circuit coupled to an output of the VGA, the second sub-circuit being operational when the communications receiver is configured to process signals of the second communications protocol and being turned off when the communications receiver is configured to process signals of the first communications protocol.