BUY DK-422 https://www.utsource.net/itm/p/1527473.html

DK-422 is a SIP-16 (Single Inline Package) type of integrated circuit. It is a dual 4-channel analog multiplexer/demultiplexer. It is used to switch between two analog signals, allowing only one of the two signals to pass through at a time. The device can be used to switch between two analog signals, such as audio signals, video signals, or other types of analog signals. It can also be used to switch between two digital signals, such as data signals, control signals, or other types of digital signals. The device is designed to operate over a wide range of temperatures and is suitable for use in a variety of applications. (For reference only)