BIDIRECTIONAL SWITCH AND SWITCH CIRCUIT USING THE SAME

摘要

PURPOSE: A bilateral switch and a switching circuit using the same are provided to maintain the quality of an audio signal and the quality of a high frequency signal by connecting an audio system switch in a hierarchy structure. CONSTITUTION: A power source terminal(45) comprises a terminal of a cable which supplies a power source, and a terminal of a cable which exclusively transmits an audio signal. A signal wire from the power source terminal is variously branched. The signal wire from the power source terminal is respectively connected to one end of a power switch and one end of an audio switch(20). A signal wire from other end part of the power switch is connected to a power circuit(215). A signal wire from the audio switch is connected to each audio circuits(221,222).