Diodes Incorporated introduces its automotive-compliant 10 Gbps 6:4 active crossbar multiplexer (mux) with a linear ReDriver. The compact PI3DPX1225Q switches USB 3.2 and DisplayPort 2.1 signals through a USB Type-C connector and delivers low-latency connectivity with high signal integrity for smart cockpits and rear-seat entertainment systems.
The PI3DPX1225Q supports three operating modes: the device can connect one lane of USB 3.2 Gen 2 to the USB Type-C connector; one lane of USB 3.2 Gen 2 and two channels of DP 2.1 UHBR10; or four channels of DP 2.1 UHBR10. The device also integrates an AUX listener and, in compliance with the USB Type-C standard, swaps the AUX channels when a flipped cable is detected.
For each USB 3.2 Gen 2 and DP 2.1 UHBR10 operating modes, the differential signals can be easily adjusted with continuous time linear equalization (CTLE). Output compression swing (-1dB) and flat-gain values are controlled by the I2C setting. By reducing intersymbol interference (ISI) jitter, the 10 Gbps signal performance is optimized over various physical mediums. Linear equalization does not block the decision feedback equalizer (DFE) receiver’s adaptive channel controls—this supports DP 2.1 transparent link training (LT) without dependency on the DP-AUX channels listener.
