Patent ID: 9210799
Filing Date: 2015-12-08
Classification: H05K

Abstract:
1. An electronic device having an audio system for reproducing audio signals, the electronic device comprising: an analog region; a digital region that is separate and non-overlapping with respect to the analog region; an analog ground plane disposed within the analog region; a digital ground plane disposed within the digital region, wherein the digital ground plane and the analog ground plane are electrically connected by a single-point contact, the single point contract comprising a connecting member that connects the digital ground plane to the analog ground plane; digital circuitry associated with the digital ground plane, wherein digital signals are routed on or over the digital ground plane; analog circuitry associated with the analog ground plane, wherein analog signals are routed on or over the analog ground plane; and an audio output channel associated with and shielded by the analog ground plane, wherein the audio output channel comprises elongate members comprising a left channel, a right channel, and a ground return channel, the ground return channel disposed between the left channel and the right channel, and wherein the ground return channel is disposed along and opposite the analog ground plane and electrically connected to the analog ground plane.