Diodes Incorporated PI3EQX2024ZTFEX

Overview

PI3EQX2024ZTFEX from Diodes Incorporated is a USB 3.2 Gen 2x2 linear ReDriver IC designed for high-speed signal integrity restoration in host-to-peripheral interconnects. It supports dual-lane 10 Gbps differential signaling (20 Gbps aggregate), features pin-selectable 4-level equalization (up to 14.6 dB at 5 GHz) and flat gain (±2.7 dB), operates from a single 3.3 V supply, and delivers <2 ns latency in active mode - deployed in notebook USB-C docking stations requiring cable-length extension and jitter suppression.

For engineers reviewing the PI3EQX2024ZTFEX datasheet, PI3EQX2024ZTFEX pinout, PI3EQX2024ZTFEX application, or PI3EQX2024ZTFEX equivalent, key selection criteria include CML I/O compatibility with USB 3.2 Gen 2x2 PHYs, adaptive slumber/unplug power states (<1.2 µA deep slumber current), 34-pin UQFN package footprint constraints, and programmable EQ/FG settings for channel-specific signal optimization across PCB traces and passive cables.

Technical Context

The PI3EQX2024 implements four independent linear ReDriver channels, each with fully decoupled input equalization and DC flat gain control via dedicated 4-level pins (EQA–EQD, FGA–FGD). Its architecture avoids decision-feedback or clock-data recovery, preserving USB protocol transparency while compensating for frequency-dependent loss up to 5 GHz.

Power management is hierarchical: automatic receiver detection triggers slumber mode after 1.3 ms inactivity, deep slumber after 6 ms, and unplug mode after 7.3 ms - all with distinct termination configurations (e.g., 67kΩ to GND in unplug mode) and sub-µA quiescent current. Input and output terminations are configurable per channel between 50Ω/VDD, 6kΩ/VbiasTx, 270kΩ/VbiasRx, or 67kΩ/GND.

Key Specifications

Pinout & Package

Package: 34-pin Ultra Thin Quad Flat No-Lead (UQFN), 2.5 mm × 4.5 mm body, 0.4 mm pitch, exposed thermal pad (ZTF34).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar USB 3.2 Gen 2x2 ReDriver applications.

Compared with TI TUSB216IRWBR and Renesas uPD720212, the PI3EQX2024ZTFEX uniquely delivers dual-lane 10 Gbps linear amplification with zero protocol intervention, enabling plug-and-play signal restoration in space-constrained USB-C endpoints where latency, power, and layout simplicity are critical.

Availability

PI3EQX2024ZTFEX is available at Aetrix Electronics and suitable for USB-C docking stations, notebook internal signal routing, external NVMe enclosures, and tablet-to-monitor hubs requiring stable component supply and RoHS-compliant, halogen-free packaging.

Supply support for PI3EQX2024ZTFEX 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 manufacturer of discrete semiconductors and integrated circuits, specializing in high-performance analog, logic, and connectivity solutions for consumer, computing, and industrial markets.

The PI3EQX2024 belongs to Diodes' ReDriver™ product line, engineered specifically for high-speed serial interface signal integrity restoration - targeting USB, PCIe, and SATA applications where transparent analog boosting replaces complex retiming architectures.

FAQ

What USB protocols does the PI3EQX2024ZTFEX support?

The PI3EQX2024ZTFEX supports USB 3.2 Gen 2x2 (20 Gbps aggregate), Gen 2 (10 Gbps), and Gen 1 (5 Gbps) protocols. It operates as a linear ReDriver - preserving native USB signaling including LFPS, training sequences, and link power states without retiming or protocol interpretation.

How is equalization configured on the PI3EQX2024ZTFEX?

Equalization is set per channel using dedicated 4-level input pins (EQA–EQD). Each pin accepts resistor ties to GND (0), 68 kΩ to GND (R), open (F), or VDD (1), selecting EQ values from 6.7–14.6 dB at 2.5 GHz and 8.0–14.6 dB at 5 GHz - enabling precise compensation for varying channel loss profiles.

Does the PI3EQX2024ZTFEX require an external clock or reference?

No. The PI3EQX2024ZTFEX is a clockless linear ReDriver and requires no external clock, reference oscillator, or configuration interface. All operation - including equalization, gain, power state transitions, and receiver detection - is autonomous and analog-based, simplifying system integration.

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

The exposed thermal pad (center pad) must be soldered to a solid copper thermal plane on the PCB for effective heat dissipation. Diodes recommends a minimum 6×6 mm thermal pad area with ≥4 thermal vias (0.3 mm diameter, spaced ≤1 mm apart) connecting to inner ground planes to maintain junction temperature ≤125°C at full 334 mA active current.