The DIO1553 is a high-performance dual single-pole single-throw (SPST × 2) audio switch. When VCC is not available, the Depletion technology allows the device to conduct signals; when VCC is present, the Depletion technology allows the device to isolate signals. During signal conduction, the Depletion gate control enables the DIO1553 to achieve great THD+N performance with consuming ultra-low power.