13 GHz bandwidth for USB 3.1 Gen 2 signal paths
The PI3DBS16212ZBBEX is a 2-channel SPDT 2:1 multiplexer/demultiplexer from Diodes Incorporated, designed for USB 3.0 and USB 3.1 differential lanes. Its 13 GHz -3dB bandwidth comfortably exceeds the 10 Gbps data rate of USB 3.1 Gen 2, preserving the signal eye opening through the switch without adding jitter. Operating from a single 3.3V supply and rated over -40°C to 85°C, it fits industrial-temperature enclosures and standard USB port applications. The bi-directional architecture means the same part can route TX and RX pairs without orientation constraints.
Package and board-fit for high-speed routing
Housed in a 20-VFQFN exposed-pad package (supplier device package 20-TQFN, 2.5x4.5 mm), the part requires a solid thermal via array under the paddle to keep junction temperature in check during continuous operation. The 0.5 mm pitch QFN footprint is standard; layout guidelines from Diodes recommend keeping the differential pair impedance at 90 Ω ±10% and minimizing stub lengths from the switch to the connector.