The TK15322M is an Analog Switch IC that was developed for audio frequency. Function is to select one output from two inputs in a device that includes two circuits, and the channel can be changed by high level. The TK15322M has a mono-power supply and the input bias is a built-in type (VCC / 2 V). Because the distortion is very low, the TK15322M fits various signals switching. It is best suited for Hi-Fi devices. Operating voltage is wide, the circuit plan is simple. The TK15322M is available in a small plastic surface mount package (SSOP-12).