CBTL01023 is a single differential channel, 2-to-1 multiplexer/demultiplexer switch forPCI Express Generation 3 (Gen3), or other high-speed serial interface applications.The CBTL01023 can switch one differential signal to one of two locations. Using a design technique, NXP has minimized the impedance of the switch such that theattenuation observed through the switch is negligible, and also minimized thechannel-to-channel crosstalk, as required by the high-speed serial interface.CBTL01023 allows expansion of existing high speed ports for extremely low power.