Diodes Incorporated PI3EQX2064ZTFAEX

Overview

PI3EQX2064ZTFAEX from Diodes Incorporated is a USB 3.2 Gen 2x2 linear ReDriver IC supporting dual 10 Gbps differential lanes, 100 Ω CML I/Os, pin-adjustable receiver equalization and flat gain, and automatic receiver detect - deployed in notebook, external storage, and tablet PC signal integrity extension paths.

For engineers reviewing the PI3EQX2064ZTFAEX datasheet, PI3EQX2064ZTFAEX pinout, PI3EQX2064ZTFAEX application, or PI3EQX2064ZTFAEX equivalent, key selection criteria include Gen 2x2 lane count, CML I/O impedance matching, slumber mode latency (7.3 ms idle timeout), and U-QFN2143-32 thermal performance in high-density USB routing.

Technical Context

The PI3EQX2064ZTFAEX implements two independent linear ReDriver channels, each with programmable analog equalization and flat gain control via external resistor networks on EQ and FG pins. It operates exclusively at 3.3 V supply and uses CML-compatible 100 Ω differential I/Os for seamless integration with USB 3.2 Gen 2x2 PHYs.

Its automatic receiver detect logic monitors channel activity and transitions to slumber mode after ≥7.3 ms of inactivity, reducing power consumption without host intervention. Each channel's output activation is conditioned solely on valid input signal level detection - no protocol handshake or register programming required.

Key Specifications

Pinout & Package

Package: 32-pin U-QFN2143-32 (2.1 mm × 4.3 mm, 0.4 mm pitch, exposed thermal pad).

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 uPD720210, the PI3EQX2064ZTFAEX uniquely delivers dual-lane 10 Gbps linear redriving with zero protocol awareness, minimal BOM (resistor-only tuning), and hardware-autonomous power management - making it optimal for transparent, low-footprint signal extension in Gen 2x2 endpoints.

Availability

PI3EQX2064ZTFAEX is available at Aetrix Electronics and suitable for USB 3.2 Gen 2x2 notebook docking stations, high-speed external SSD enclosures, and tablet PC expansion hubs requiring stable component supply and automotive-grade traceability options.

Supply support for PI3EQX2064ZTFAEX 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 analog ICs, specializing in power management, signal integrity, and protection solutions for consumer, industrial, and automotive markets.

The PI3EQX2064 belongs to Diodes' ReDriver™ product line, engineered specifically to extend high-speed serial interfaces-including USB 3.2, PCIe, and DisplayPort-by analog signal conditioning without protocol layer involvement.

FAQ

What is the function of the EQ and FG pins on the PI3EQX2064ZTFAEX?

The EQ pin sets receiver-side high-frequency equalization strength via an external resistor to GND, compensating for channel loss above 2.5 GHz. The FG pin sets DC flat gain using another resistor to GND, adjusting output amplitude to match downstream receiver sensitivity. Both are analog bias inputs-no digital interface or firmware is required for tuning.

Does the PI3EQX2064ZTFAEX require configuration registers or I²C communication?

No. The PI3EQX2064ZTFAEX is a fully analog, pin-strapped ReDriver with no digital configuration interface. All operational parameters-including equalization, flat gain, and channel enable-are set by external passive components or hardwired logic levels. This eliminates boot-time initialization delays and firmware dependencies.

How does automatic receiver detect work, and what triggers slumber mode?

Each channel continuously monitors its input pair for valid CML signal activity. If no valid signal is detected for ≥7.3 ms, the channel enters slumber mode-reducing current draw by ~70%. Upon signal reappearance, it exits slumber within 100 ns and resumes full operation without host intervention or retraining.

Can the PI3EQX2064ZTFAEX be used with USB 3.2 Gen 1 (5 Gbps) or Gen 2 (10 Gbps single-lane) systems?

Yes. The device is backward compatible with USB 3.2 Gen 1 (5 Gbps) and Gen 2 (10 Gbps single-lane) due to its linear architecture and wide bandwidth. However, its dual-lane Gen 2x2 capability is only utilized when both lanes operate simultaneously at 10 Gbps - otherwise, one lane may be disabled or left unconnected.