10G active crossbar mux simplifies smart cockpit connectivity
Diodes has launched an automotive-compliant 10Gbit/s 6:4 active crossbar multiplexer with a linear ReDriver for smart cockpit designs.
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 rear-seat entertainment systems as well as smart cockpits.
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.
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For each of the 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 10Gbps signal performance is optimized over a variety of 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.
The PI3DPX1225Q is packaged in a 40-Pin W-QFN6040-40 with a compact 4mm x 6mm footprint for smart cockpit designs and is available from $1.87 in 3,500-piece quantities.
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