Communication interface chip UART485/232

Technical Documentation and Design Resources Data Sheets (1) Encapsulation Drawings (2)

The NL3S22AH is a double-pole double-throw (DPDT) analog switch for routing high-speed differential data and audio. The differential channel complies with Hi-Speed ​​USB 2.0, Full-Speed ​​USB 1.1, Low-Speed ​​USB 1.0 and any generic UART protocol requirements. The versatile audio path is capable of passing signals using negative voltages 3V below ground and features shunt resistors to reduce click and pop in the audio system. For NL3S22AH, the audio path (AUDP/AUDN) can be selected using SEL=0 with the device enabled (EN = 1). For the NL3S22UH, the high-speed datapath (HDP/HDN) can be selected with SEL=0 when the device is enabled (EN = 1).