High-performance dual single-pole single-throw audio switch

Applications such as smart phones, tablets and ultrabooks, Fairchild's high-performance FSA551 dual single-pole single-throw (SPSTx2) audio switch is now available from Mouser. The device's depletion-mode technology allows it to conduct signals when there is no VCC available and to isolate signals when VCC is present. During signal conduction, the Depletion Mode gate control allows the FSA551 to achieve excellent THD+N performance while consuming minimal power.