Patent ID: 6954675
Filing Date: 2005-10-11
Classification: H04R

Abstract:
1. An audio chip with switchable audio output pathways, comprising: an operational amplifier, wherein the operational amplifier receives an audio signal and amplifies said audio signal; a master output end, wherein the master output end outputs said audio signal; a headphone output end coupled to said operational amplifier, wherein the headphone output end outputs an amplified audio signal from said operational amplifier; a status input end, wherein the status input end inputs a connection configuration of said audio chip; and a status register coupled to said status input end, wherein the status register receives and stores said connection configuration, wherein a potential level is used to set said connection configuration, so as to determine one of connections, wherein the connections include a first connection that said master output and said headphone output end respectively are coupled to a first mainboard output end and a second mainboard output end, and a second connection that said master output and said headphone output end respectively are coupled to the second mainboard output end and the first mainboard output end.