It offers a compact, efficient, cost-effective solution for advanced automotive applications with features like linear ReDriver technology, integrated AUX listener, and I2C programmability.
Diodes Incorporated (Diodes) has unveiled its latest automotive-compliant product, the PI3DPX1225Q, a 10Gbps 6:4 active crossbar multiplexer (mux) featuring a linear ReDriver. This new device is designed to enhance signal switching for USB 3.2 and DisplayPort 2.1 signals via a USB Type-C connector. It is ideal for applications in smart cockpits and rear-seat entertainment systems in modern vehicles. It offers versatile connectivity by supporting three distinct operating modes. It can connect one lane of USB 3.2 Gen 2 to the USB Type-C connector, support a combination of one lane of USB 3.2 Gen 2 and two channels of DisplayPort 2.1 UHBR10, or enable the use of four channels of DisplayPort 2.1 UHBR10. The device includes an integrated AUX listener and, in line with the USB Type-C standard, can automatically swap AUX channels when it detects a flipped cable.
The key features are:
- Compact and efficient design
- Housed in a 40-pin W-QFN6040-40 package
- Small 4mm x 6mm footprint
- Operates on a single 3.3V power supply
- Supports Slave I2C mode with speeds up to 1MHz
- Withstands temperatures from -40°C to +85°C
- Meets AEC-Q100 Grade 3 standards
It is a versatile component designed for automotive applications, particularly in systems requiring stringent change control. Its features include receiver equalization, flat gain, and -1dB compression output swing tailored for each DP/USB mode. It offers ultra-low latency linear re-driving, non-blocking functionality, and transparent DisplayPort link training support. It comes with built-in control logic for Type-C plug/unplug detection, handling both normal and flipped orientations, and can be programmed via I2C with speeds up to 1MHz.
It provides continuous time linear equalization (CTLE) for differential signals in both USB 3.2 Gen 2 and DisplayPort 2.1 UHBR10 modes to ensure high signal integrity and low latency across different configurations. The device’s output compression swing (-1dB) and flat-gain values can be fine-tuned through the I2C interface, helping to reduce intersymbol interference (ISI) jitter and optimize 10Gbps signal performance over various physical mediums. Notably, the linear equalization feature preserves the effectiveness of decision feedback equalizer (DFE) receivers, allowing for seamless support of DisplayPort 2.1 transparent link training (LT) without relying on the DP-AUX channel listener. This new solution is now available for purchase at a unit price starting from $1.87 when ordered in quantities of 3,500 pieces, making it a cost-effective option for automotive and entertainment system designers.
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