USB 2.0 and HiFi Audio Switch

The NL3S22AH is a double-pole/double-throw (DPDT) analog switch for routing high speed differential data and audio. The differential channels are compliant with High Speed USB 2.0, Full Speed USB 1.1, Low Speed USB 1.0 and any generic UART protocol. The multi−purpose audio path is capable of passing signals with negative voltages as low as 3V below ground and features shunt resistors to reduce Pop and Click noise in the audio system. For the NL3S22AH, the audio path (AUDP/AUDN) will be selected with SEL=0 with the device enabled (EN = 1). For the NL3S22UH, the high speed data path (HDP/HDN) will be selected with SEL=0 with the device enabled (EN = 1).