发明名称 SWITCH CIRCUIT
摘要 <P>PROBLEM TO BE SOLVED: To suppress a distortion component generated in a high frequency signal and an audio signal when a signal line through which the high frequency signal passes and a plurality of signal lines through which the audio signal passes are merged and used. <P>SOLUTION: A signal line from a common terminal 50 into which a terminal of a cable transmitting the high frequency signal and a terminal of a cable exclusively transmitting the audio signal can be inserted in common is branched into two lines, and the lines are respectively connected to one end of a high frequency system switch (a USB switch 10) and one end of an audio system switch (an audio switch 20) of a first hierarchy. A signal line from the other end of the high frequency system switch is connected to a target circuit. A signal line from the other end of the audio system switch of the first hierarchy is branched into a plurality of lines to be connected to one end of each of audio system switches (a headphone switch 21 and a microphone switch 22) of a second hierarchy. Each of signal lines from the other ends of the plurality of audio system switches of the second hierarchy are respectively connected to their target circuits. <P>COPYRIGHT: (C)2012,JPO&INPIT
申请公布号 JP2012049868(A) 申请公布日期 2012.03.08
申请号 JP20100190822 申请日期 2010.08.27
申请人 ON SEMICONDUCTOR TRADING LTD 发明人 YAMADA KOICHI;MIZUKAMI HAJIME
分类号 H03K17/693;H03K17/687;H04M1/00 主分类号 H03K17/693
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