Diodes Incorporated PI2DPX1066XUAEX

Overview

PI2DPX1066XUAEX from Diodes Incorporated is a 1.8V, 10Gbps USB-C DisplayPort Alternate Mode linear redriver IC with integrated AUX-SBU crossbar switch, configured in 4-to-4 channel topology, supporting DP1.4/DP2.0 UHBR10 and USB3.2 Gen2x2 operation in laptop, gaming console, and VR/AR goggle systems.

For engineers reviewing the PI2DPX1066XUAEX datasheet, PI2DPX1066XUAEX pinout, PI2DPX1066XUAEX application, or PI2DPX1066XUAEX equivalent, key selection criteria include per-channel CTLE/flat gain programmability, <300ps latency, I²C-configurable mode selection, 1.8V ±5% single-supply operation, and industrial temperature range (–40°C to +85°C).

Technical Context

The PI2DPX1066XUAEX implements a non-blocking linear redriver architecture with differential input CTLE equalizers per channel to compensate channel loss and reduce ISI jitter, enabling signal integrity recovery without retiming or protocol awareness. It supports four I²C-programmable operational modes: USB3.2 Gen2, USB3.2 Gen2/2-lane DP1.4/DP2.0, 4-lane DP1.4/DP2.0, or USB3.2 Gen2x2 - all at up to 10Gbps per lane.

Its integrated AUX-SBU crossbar switch dynamically routes AUX+/AUX− and SBU1/SBU2 signals between Type-C plug orientations, ensuring flip/non-flip connector compatibility. The device operates with ultra-low latency (<300ps) and supports I²C slave interface up to 1MHz for real-time configuration of CTLE gain, flat gain, and output linearity on each channel independently.

Key Specifications

Pinout & Package

Tiny 32-pin X2QFN package (2.85 mm × 4.5 mm, 0.4 mm pitch, XUA code), thermally enhanced with exposed thermal pad.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar USB-C DP-Alt mode redriver applications.

Compared with TUSB1044 and MAX24288, the PI2DPX1066XUAEX uniquely combines 4-lane linear redriving, per-channel equalization tuning, and integrated AUX-SBU switching in a single 1.8V, low-latency package-making it optimal for compact, multi-function USB-C endpoints requiring protocol transparency and orientation agility.

Availability

PI2DPX1066XUAEX is available at Aetrix Electronics and suitable for laptop docking stations, gaming console display hubs, VR/AR goggle controllers, and active USB-C cable assemblies requiring stable component supply and industrial temperature resilience.

Supply support for PI2DPX1066XUAEX includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Diodes Incorporated is a global semiconductor company specializing in discrete, analog, and mixed-signal ICs for power management, signal integrity, and connectivity applications.

The PI2DPX1066 belongs to Diodes' USB-C Signal Integrity product line, engineered specifically to solve high-speed channel loss and orientation complexity in compact, power-constrained USB-C endpoints.

FAQ

What USB-C alternate modes does the PI2DPX1066XUAEX support?

The PI2DPX1066XUAEX supports USB3.2 Gen2, USB3.2 Gen2/2-lane DP1.4/DP2.0 (UHBR10), 4-lane DP1.4/DP2.0 (UHBR10), and USB3.2 Gen2x2 modes-all selectable via I²C registers. It does not support Thunderbolt or HDMI Alt Mode. Mode selection is software-configurable and persists across power cycles when stored in external memory.

Does the device require an external reference clock?

No. The PI2DPX1066XUAEX is a linear redriver and operates without any reference clock. It preserves the incoming data stream's timing and jitter characteristics, making it compatible with source-side CDR and receiver-side DFE. This eliminates clock distribution complexity and board space for crystal oscillators or clock buffers.

How is Type-C plug orientation handled for AUX and SBU signals?

The PI2DPX1066XUAEX integrates a hardware-controlled AUX-SBU crossbar switch that automatically routes AUX+/AUX− and SBU1/SBU2 based on CC1/CC2 detection at power-on. No firmware or I²C command is needed-the routing is fully transparent and compliant with USB-C specification v2.1 for both flip and non-flip plug insertion.

What is the thermal pad connection requirement for the X2QFN package?

The exposed thermal pad on the PI2DPX1066XUAEX's X2QFN package must be soldered to a solid copper thermal land on the PCB, connected to a dedicated internal ground plane via ≥4 thermal vias (0.3mm diameter, spaced ≤1mm apart). This ensures junction temperature remains within –40°C to +85°C ambient under full 10Gbps operation with typical 120mW power dissipation.