The TK15329M is an Analog Switch IC that was developed for audio frequency. The function is to select one output from two inputs and has a floating position too. The channel can be changed by two control levels and the device includes two circuits. The TK15329M has a mono-power supply and the input bias is a supply type from outside. Because the distortion is very low, the TK15329M fits various signals switching. It is best suited for Hi-Fi devices. Operating voltage is wide, the circuit plan is simple. The TK15329M is available in a small plastic surface mount package (SSOP-12).