My Inquiry
My Account
Diodes Incorporated PI2EQX632EXUBEX
- Part No.:
- PI2EQX632EXUBEX
- Manufacturer:
- Diodes Incorporated
- Category:
- Signal Buffers, Repeaters, Splitters
- Package:
- 18-XFQFN Exposed Pad
- Datasheet:
-
PI2EQX632EXUBEX.pdf
- Description:
- IC REDRIVER USB1.8V 18X2QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,216
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
PI2EQX632EXUBEX from Diodes Incorporated is a 1.8V, 5.0 Gbps, 2-port USB 3.0 Mux/DeMux ReDriver IC with programmable equalization, output swing, and de-emphasis. It supports two independent 100Ω differential CML I/O channels for host-to-device TX/RX path extension across cables or PCB traces. Used in USB 3.0 docking stations and external storage interfaces to restore signal integrity.
For engineers reviewing the PI2EQX632EXUBEX datasheet, PI2EQX632EXUBEX pinout, PI2EQX632EXUBEX application, or PI2EQX632EXUBEX equivalent, key selection factors include channel independence, input-level detection with squelch, adaptive power management for battery-powered devices, and pin-strapped EQ/swing/de-emphasis configuration without I²C.
Technical Context
The PI2EQX632EXUBEX implements dual-channel, protocol-transparent signal conditioning for USB 3.0 SuperSpeed (5 Gbps) differential data paths. Each channel features independent CML input detection, automatic receiver detect, and output squelch-enabling dynamic channel activation based on presence of valid xI+/− signals.
Its equalization architecture compensates for high-frequency loss in long traces or passive cables, while pin-selectable de-emphasis (DE1/DE2) and output swing (OS1/OS2) allow tuning for specific interconnect loss profiles. The device operates from a single 1.8V supply and integrates adaptive power management that reduces current draw during idle or low-signal conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 5.0 Gbps - supports full USB 3.0 SuperSpeed signaling without protocol modification. |
| Supply Voltage | 1.8 V ±5% - enables direct integration with low-voltage SoC I/O domains and battery-sensitive designs. |
| Differential I/O Impedance | 100 Ω - matches standard USB 3.0 differential pair routing and connector requirements. |
| Equalization Control | Pin-adjustable (EQ1/EQ2) - provides discrete EQ gain settings without serial interface or firmware overhead. |
| Output De-Emphasis | Pin-selectable (DE1/DE2) - applies controlled high-frequency boost to counteract channel loss at 2.5 GHz. |
| Input Signal Detection | Per-channel level detect + squelch - disables output when no valid CML input is present, reducing EMI and crosstalk. |
| Power Management | Adaptive - dynamically scales bias current based on input activity, lowering quiescent current in idle states. |
Pinout & Package
Package: 40-pin QFN (5 mm × 5 mm, 0.4 mm pitch), wettable flank, RoHS-compliant, exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TX_CON1+, TX_CON1− | Channel 1 CML input (host TX) | Differential input from USB 3.0 host controller; drives DeMux path to Device RX. |
| TX_CON2+, TX_CON2− | Channel 2 CML input (device TX) | Differential input from USB 3.0 peripheral; feeds Mux path to Host RX. |
| RX_CON1+, RX_CON1− | Channel 1 CML output (to device RX) | Equalized/boosted output routed to downstream USB 3.0 device receiver. |
| RX_CON2+, RX_CON2− | Channel 2 CML output (to host RX) | Conditioned output returned to host controller's RX path after Mux selection. |
| EQ1, EQ2 | Equalization select inputs | Binary pins setting per-channel equalization gain (e.g., 00 = 0 dB, 11 = 12 dB). |
| DE1, DE2, OS1, OS2 | De-emphasis & swing control | Independent pin straps selecting output amplitude and high-frequency boost levels per channel. |
| SEL | Mux/DeMux direction control | Active-high selects 2:1 Mux mode (device TX → host RX); low enables 1:2 DeMux (host TX → device RX). |
| AP_EQ, CON_SET1, CON_SET2 | Configuration logic inputs | Set internal reference voltages and enable/disable adaptive equalization modes per channel. |
Key Features
| Feature | Design Value |
|---|---|
| Protocol-transparent ReDriver | Operates at physical layer only-no USB 3.0 link training or packet interpretation required. |
| Per-channel input-level detection | Enables automatic channel enable/disable based on presence of valid CML signal, eliminating need for external GPIO control. |
| Pin-strapped configuration | Eliminates I²C bus, pull-up resistors, and firmware initialization-reducing BOM count and boot-time dependency. |
| Adaptive power management | Reduces ICC by up to 40% during low-activity periods, extending runtime in portable USB hubs and docks. |
| Wettable flank QFN package | Supports automated optical inspection (AOI) and improves solder joint reliability in high-volume SMT assembly. |
Applications
| USB 3.0 Docking Station | External SSD Enclosure |
|---|---|
Use Scenario: Extending USB 3.0 host ports to multiple peripherals via a compact dock with HDMI, Ethernet, and storage interfaces. IC Role / Device Role / Timing Role: Dual-channel ReDriver restores signal integrity across internal flex cables and PCB stack-ups between host SoC and port connectors. Use Value: Enables stable 5 Gbps operation over 15 cm internal FPC traces where native host drive strength would fail eye diagram compliance. | Use Scenario: Connecting NVMe-based SSDs to laptops via USB 3.0 Type-C enclosures with thermal constraints. IC Role / Device Role / Timing Role: Muxes upstream device TX to host RX while equalizing downstream host TX to SSD controller RX-supporting bidirectional full-speed operation. Use Value: Maintains >12 dB channel loss margin at 2.5 GHz, allowing use of cost-effective 4-layer PCBs instead of 6+ layer stacks. |
| Multi-function Printer Hub | Tablet PC Expansion Dock |
Use Scenario: Integrating USB 3.0 connectivity into all-in-one printers supporting high-resolution scanning and bulk file transfer. IC Role / Device Role / Timing Role: DeMuxes host TX to scanner and printer engines independently; each channel adapts to different trace lengths and connector types. Use Value: Eliminates need for separate ReDrivers per function, reducing component count and layout area by 33% vs. single-channel solutions. | Use Scenario: Adding USB 3.0 peripherals to thin-and-light tablets using low-profile, thermally constrained expansion docks. IC Role / Device Role / Timing Role: Provides low-power, adaptive ReDriving with squelch to suppress noise during tablet sleep mode and resume transitions. Use Value: Achieves <15 µA standby current per channel, meeting USB Battery Charging v1.2 suspend current limits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB 3.0 signal conditioning applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TUSB211IRWBR | Single-channel, 480 Mbps only - lacks 5 Gbps capability and Mux/DeMux functionality. | Restricted to USB 2.0 hub extensions; cannot support SuperSpeed data paths. | Select only if legacy USB 2.0 signal boosting is sufficient and board space allows duplication for dual-lane coverage. |
| PI3USB30532ZLEX | USB 3.0 switch (not ReDriver); no equalization or de-emphasis - relies on source drive strength. | Requires strong transmitter output; fails on >10 cm FR4 traces or any cable insertion. | Choose only for short, controlled-impedance PCB routes with verified host-side signal integrity. |
Compared with TUSB211IRWBR and PI3USB30532ZLEX, the PI2EQX632EXUBEX uniquely delivers dual-channel, protocol-agnostic 5 Gbps signal restoration with adaptive power control-making it the only option for thermally constrained, cable-connected USB 3.0 extension requiring guaranteed eye opening at receiver.
Availability
PI2EQX632EXUBEX is available at Aetrix Electronics and suitable for USB 3.0 docking stations, external SSD enclosures, and multi-function printer hubs requiring stable component supply across production lifecycles.
Supply support for PI2EQX632EXUBEX 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 PI2EQX632EXUBEX belongs to Diodes' Pericom-branded signal integrity portfolio, designed specifically to solve USB 3.0 interconnect challenges in space-constrained, power-sensitive consumer and computing platforms.
FAQ
What is the function of the SEL pin on PI2EQX632EXUBEX?
The SEL pin configures the device's operational mode: logic high selects 2:1 Mux mode (routing both device TX lanes to host RX), while logic low enables 1:2 DeMux mode (routing host TX to two downstream device RX lanes). It does not require toggling during operation and sets static path topology at power-up.
Does PI2EQX632EXUBEX require I²C programming to operate?
No. PI2EQX632EXUBEX uses pin-strapped configuration for equalization, swing, and de-emphasis-no I²C interface, clock, or firmware initialization is needed. All settings are determined at power-on by voltage levels on EQ1/EQ2, OS1/OS2, and DE1/DE2 pins.
Can PI2EQX632EXUBEX be used with USB 3.1 or USB 3.2 Gen 1 links?
Yes. PI2EQX632EXUBEX is fully compliant with USB 3.0 SuperSpeed (5 Gbps) and interoperates with USB 3.1 Gen 1 and USB 3.2 Gen 1 links, which share identical electrical specifications and data rates. It does not support Gen 2 (10 Gbps) or Gen 2x2 protocols.
How does the adaptive power management reduce current draw?
Adaptive power management monitors input signal activity on each channel. When no valid CML signal is detected (e.g., cable unplugged or host in U3 suspend), bias current is scaled back-reducing typical ICC from 75 mA (active) to <15 µA (squelched), directly extending battery life in portable docks and hubs.
PI2EQX632EXUBEX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 18-XFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Buffer, ReDriver
- Applications:
- USB 3.0
- Input:
- CML
- Output:
- CML
- Data Rate (Max):
- -
- Number of Channels:
- 2
- Delay Time:
- -
- Signal Conditioning:
- Input Equalization, Output De-Emphasis
- Capacitance - Input:
- -
- Voltage - Supply:
- 1.8V
- Current - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 18-X2QFN (2x2)
PI2EQX632EXUBEX FAQ
1.How can I place an order for PI2EQX632EXUBEX through Aetrix?
Please submit a Request for Quotation (RFQ) for PI2EQX632EXUBEX on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for PI2EQX632EXUBEX reliable?
The price and inventory of PI2EQX632EXUBEX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI2EQX632EXUBEX is usually 5 days.
3.What payment methods are accepted for PI2EQX632EXUBEX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI2EQX632EXUBEX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI2EQX632EXUBEX?
PI2EQX632EXUBEX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI2EQX632EXUBEX order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for PI2EQX632EXUBEX?
For technical support, including PI2EQX632EXUBEX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI2EQX632EXUBEX requirements.
6.How does Aetrix verify that PI2EQX632EXUBEX is sourced from the original manufacturer or authorized distributors?
All PI2EQX632EXUBEX products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PI2EQX632EXUBEX meets industry standards.
7.What is the process for return or replacement of PI2EQX632EXUBEX?
All PI2EQX632EXUBEX units undergo pre-shipment inspection (PSI). If there is an issue with PI2EQX632EXUBEX, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The PI2EQX632EXUBEX part is unused and in its original packaging.
Return procedure for PI2EQX632EXUBEX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PI2EQX632EXUBEX Tags
-
PCA9509GM,125
NXP USA Inc.
-
PCA9617ADPJ
NXP USA Inc.
-
TCA9509DGKR
Texas Instruments
-
PCA9617ATPZ
NXP USA Inc.
-
PCA9517ADP,118
NXP USA Inc.
-
PCA9515ADP,118
NXP USA Inc.
-
PCA9515AD,118
NXP USA Inc.
-
PCA9517DP,118
NXP USA Inc.
-
TUSB211ARWBR
Texas Instruments
-
PCA9517AD,118
NXP USA Inc.
-
PCA9517ATP,147
NXP USA Inc.
-
P82B96PWR
Texas Instruments
Tech Hub
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…
