Patent ID: 7974582

Claim:
A mobile wireless communications device comprising: a housing; a plurality of circuit boards carried by the housing and including radio frequency (RF) circuitry and a processor operative with each other and each carried by at least one of the circuit boards; audio circuitry carried by at least one of the circuit boards and operative with the RF circuitry and processor; an audio transducer assembly that includes a transducer housing and carried by at least one of the circuit boards and having an electrical contact pad member that electrically engages the audio circuitry for carrying audio signals between the audio circuitry and the audio transducer assembly wherein the audio circuitry engaging the electrical contact pad member comprises uninterrupted signal traces on at least one of the circuit boards; and a first filter serially connected within each uninterrupted signal trace of the audio circuitry at the audio transducer assembly, and further comprising at least one of a second filter mounted serially at the electrical contact pad member and a third filter mounted within the transducer housing of the audio transducer assembly for reducing radio frequency (RF) electromagnetic interference to the audio transducer assembly during device operation.