Communication device and method of operation therefore

摘要

A communication device ( 105 ) includes a first communication block ( 205 ) for operation within a first communication network ( 150 ); and a second communication block ( 210 ) for operation within a second communication network ( 160 ). The communication device ( 105 ) further includes an audio control ( 245 ) for at least one microphone ( 250 ). The audio control ( 245 ) is coupled to the first communication block ( 205 ) for receiving a first audio input for operation of the first communication block ( 205 ) and is coupled to the second communication block ( 210 ) for receiving a second audio input for operation of the second communication block ( 210 ). A low noise ground ( 315 ) is isolated from a common ground ( 320 ) of the communication device ( 105 ) to facilitate the sharing of the at least one microphone ( 250 ) between the two communication blocks.