Diodes Incorporated PI2EQX22024XEAEX

Overview

PI2EQX22024XEAEX from Diodes Incorporated is a USB Type-C® 10Gbps bidirectional retimer IC with adaptive CTLE and 3-tap FFE equalization, supporting USB3.2 Gen1x1/Gen2x1/Gen2x2 modes. It delivers -23dB channel loss compensation at 5GHz, <1ns latency, single 1.8V ±90mV supply, and programmable I²C configuration for docking stations and active cables.

For engineers reviewing the PI2EQX22024XEAEX datasheet, PI2EQX22024XEAEX pinout, PI2EQX22024XEAEX application, or PI2EQX22024XEAEX equivalent, key selection criteria include USB3.2 dual-lane re-timing capability, RX termination detection for U1/U2/U3 power state compliance, adaptive equalizer tuning, and 32-pin QFN package integration in space-constrained USB-C interconnect designs.

Technical Context

This retimer implements bit-level re-timing with four independent CDR blocks - two per direction (AP↔CON) - enabling simultaneous Gen2x2 operation. Its adaptive CTLE dynamically adjusts gain based on signal integrity feedback during link training, while the 3-tap transmitter FFE supports programmable pre-shoot and de-emphasis (±2.2dB PE, −3.1dB/−6dB DE).

The device operates without an external reference clock and uses internal biasing and 1.08V regulation. USB power state management includes dynamic RX termination switching (50Ω ↔ 75kΩ to GND) and TX output impedance reconfiguration (50Ω/1.5kΩ to VbiasTX or 3kΩ/75kΩ to GND) across U0–U3 states.

Key Specifications

Pinout & Package

PI2EQX22024XEAEX is housed in a 32-pin X1-QFN2845-32 package (2.85mm × 4.5mm, 0.4mm pitch, 0.45mm height) with exposed thermal pad. Pin functions are validated per Diodes DS45418 Rev 1-2.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar USB3.2 retimer applications.

Compared with TUSB1146IRGET and uPD720212, PI2EQX22024XEAEX uniquely combines Gen2x2 support, clockless architecture, and ultra-low latency in a 2.85×4.5mm footprint-making it optimal for next-gen USB-C docks, active cables, and mini-dongles where size, power, and dual-lane throughput are critical.

Availability

PI2EQX22024XEAEX is available at Aetrix Electronics and suitable for PC docking stations, active USB-C cables, HDMI/DP dongles, and notebook internal USB-C multiplexing requiring stable component supply, automotive-grade change control, and RoHS-compliant sourcing.

Supply support for PI2EQX22024XEAEX 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, with emphasis on power management, signal integrity, and connectivity solutions for consumer, computing, and industrial markets.

PI2EQX22024XEAEX belongs to Diodes' high-speed interface product line, engineered specifically for USB Type-C® re-timing challenges in compact, thermally constrained, and power-sensitive portable and docking applications.

FAQ

Does PI2EQX22024XEAEX support USB3.2 Gen2x2 flip mode?

Yes. When configured with OP_MODE<3:0>=1111, the device enables full USB3.2 Gen2x2 operation including flip-mode compatibility, allowing seamless orientation-agnostic connection between host and peripheral without firmware intervention or manual reconfiguration.

How does the RX termination detection reduce power consumption?

RX termination detection automatically switches input termination from 50Ω (U0 active mode) to 75kΩ (U1/U2/U3/RXDET) based on link state, reducing quiescent current draw by >99% during low-power states while maintaining fast wake-up response for USB resume signaling.

Can PI2EQX22024XEAEX operate without an external I²C master controller?

No. I²C is mandatory for initial configuration of OP_MODE, FFE coefficients, and power state behavior. The device has no default operational mode at power-on; EN high alone places it in reset until valid I²C writes configure channel assignment and equalization parameters.

What is the maximum supported channel loss at 10GHz?

The datasheet specifies −23dB compensation at 5GHz. At 10GHz, measured performance degrades to approximately −12dB due to CML driver bandwidth limitations and CTLE frequency roll-off; Gen2x2 operation remains robust up to 5GHz Nyquist, covering full 10Gbps NRZ signaling.