Patent ID: 8223657

Claim:
A method for selecting one of a plurality of clock signals used to drive a bus of a radio device comprising a radio module coupled to the bus and designed to operate over a plurality of radio channels in a first frequency band, the method comprising: storing a look up table (LUT) comprising a plurality of entries, wherein each entry comprises: a particular one of the radio channels and a corresponding one of a first clock signal having a first clock frequency and a second clock signal having a second clock frequency that is to be selected; selecting, at a particular time, one of the radio channels that the radio module is to communicate over; determining from the LUT, based on the one of the radio channels that has been selected for the radio module to communicate over, that either the first clock signal or the second clock signal is to be used to drive the bus; sending a command indicating a selected clock signal from the determining step to a logic device; selecting, at the logic device based on the command, either the first clock signal or the second clock signal to drive the bus; and driving the bus with either the first clock signal or the second clock signal.