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Diodes Incorporated PI3EQX7741AIZDEX
- Part No.:
- PI3EQX7741AIZDEX
- Manufacturer:
- Diodes Incorporated
- Category:
- Signal Buffers, Repeaters, Splitters
- Package:
- 20-WFQFN Exposed Pad
- Datasheet:
-
PI3EQX7741AIZDEX.pdf
- Description:
- IC REDRIVER USB 3.0 1CH 20TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,691
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Product details
Overview
PI3EQX7741AIZDEX from Diodes Incorporated (acquired Pericom) is a 5.0 Gbps, 2-channel USB 3.0 ReDriver IC with adjustable receiver equalization, pin-configured output emphasis control, and input signal-level detection/squelch per channel. It operates on a single 3.3V supply, delivers ~328 mW typical power, and uses 100Ω differential CML I/Os for signal integrity enhancement in USB 3.0 cable and board-to-board interconnects.
For engineers reviewing the PI3EQX7741AIZDEX datasheet, PI3EQX7741AIZDEX pinout, PI3EQX7741AIZDEX application, or PI3EQX7741AIZDEX equivalent, key selection criteria include per-channel independent enable/disable, slumber-mode adaptive power management, differential input threshold detection, CML-compatible 100Ω termination, and programmable equalization for Inter-Symbol Interference reduction across lossy PCB traces or cables.
Technical Context
The PI3EQX7741AIZDEX implements a two-channel, fully independent ReDriver architecture with integrated limiting amplifiers, analog equalizers, and digital control logic. Each channel features dedicated EN_x# enable pins, RxDet-driven automatic receiver detection, and squelch activation when input falls below Vth−.
Its signal conditioning path includes programmable equalization pre-amplification and pin-configurable de-emphasis at the output stage. The device supports automatic transition between active, slumber, and standby modes based on input activity and digital control signals - enabling dynamic power scaling without host intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 5.0 Gbps per channel - supports full USB 3.0 Gen1 signaling without protocol translation or latency penalty. |
| Supply Voltage | 3.3V ±5% - compatible with standard USB 3.0 system power rails; no auxiliary voltage required. |
| Power Consumption | ~328 mW typical active - enables thermal design within compact 4×4 mm TQFN without forced cooling. |
| Differential Impedance | 100Ω CML I/O - matches USB 3.0 differential pair routing and connector specifications directly. |
| Input Threshold Detect | Vth− level detection per channel - triggers squelch to common-mode voltage when signal drops below valid eye opening. |
| Auto Slumber Mode | Adaptive entry after 25 ms channel inactivity - reduces dynamic power during idle USB link states. |
Pinout & Package
Package: 20-contact TQFN (4 mm × 4 mm, 0.5 mm pitch), exposed thermal pad, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN_1#, EN_2# | Channel enable inputs (active-low) | Independent digital control to activate/deactivate each ReDriver channel; high = standby mode. |
| RxDet | Receiver detect global enable | Pull-high activates automatic plug/unplug detection loop per channel with 25 ms timeout. |
| EQ_1, EQ_2 | Equalization configuration pins | Set analog equalizer gain per channel via pin strapping (3 levels: low/med/high). |
| DE_1, DE_2 | De-emphasis configuration pins | Pin-strapped output emphasis level per channel (off/–3.5 dB/–6 dB). |
| XI1+/XI1−, XI2+/XI2− | Differential data inputs | 100Ω CML-compatible inputs accepting degraded USB 3.0 signals from ASIC or cable. |
| XO1+/XO1−, XO2+/XO2− | Differential data outputs | Regenerated, equalized, and emphasized USB 3.0 signals driving downstream connectors or traces. |
Key Features
| Feature | Design Value |
|---|---|
| Per-channel independent operation | EN_x# and signal detection logic isolated per channel - enables asymmetric link configurations (e.g., one channel active, one powered down). |
| Programmable equalization | Three-level analog EQ gain selectable by EQ_x pins - compensates frequency-dependent loss in >15 cm PCB traces or passive cables. |
| Pin-strapped de-emphasis | Fixed-output emphasis levels (0/–3.5/–6 dB) set without I²C - eliminates firmware dependency and timing overhead. |
| Input squelch with threshold detection | Automatic CM-level output drive when XI± falls below Vth− - prevents false signaling during hot-unplug or cable disconnect. |
Applications
| External Storage Docking Station | USB 3.0 Active Cable Assembly |
|---|---|
Use Scenario: High-speed connection between laptop and multi-bay USB 3.0 RAID enclosure with >30 cm internal flex PCB routing. IC Role / Device Role / Timing Role: Signal ReDriver restoring eye opening degraded by FR4 trace loss and connector reflections. Use Value: Enables reliable 5 Gbps link over 4-layer 12-mil trace with ≤15 dB loss at 2.5 GHz - eliminating need for costly controlled-impedance layout. | Use Scenario: 2-meter passive copper USB 3.0 cable upgraded to active repeater functionality using embedded ReDriver. IC Role / Device Role / Timing Role: Channel-specific equalization and de-emphasis applied before cable transmission to counter high-frequency attenuation. Use Value: Achieves certified USB-IF compliance for SuperSpeed signaling over extended length without host-side protocol changes. |
| Embedded Host Controller Expansion | Industrial Machine Vision Interface |
Use Scenario: Adding two additional USB 3.0 ports to an embedded x86 SBC via PCIe-to-USB controller with limited trace length margin. IC Role / Device Role / Timing Role: ReDriver placed between USB controller PHY and edge connector to extend signal reach beyond 8 cm. Use Value: Maintains <1 UI jitter accumulation across full temperature range (–40°C to +85°C) - preserving link training success rate >99.9%. | Use Scenario: Connecting high-resolution USB 3.0 cameras to real-time image processing unit across noisy factory-floor cabling. IC Role / Device Role / Timing Role: Input squelch and slumber mode suppress noise-induced false link-up during camera power cycling. Use Value: Eliminates manual re-enumeration after camera hot-swap - automatic Rx detect restores link within 100 ms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB 3.0 ReDriver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TUSB211IRWBR | Single-channel, fixed 3.3V operation, no programmable EQ/de-emphasis - only basic signal regeneration. | Limited to short-reach (<10 cm) board-level use; lacks squelch and slumber mode. | Select when cost sensitivity outweighs signal integrity flexibility and power optimization needs. |
| USB3320-EZK | Integrated USB 3.0 PHY + hub controller - not a standalone ReDriver; requires full stack firmware support. | Used in embedded host designs needing port expansion, not signal conditioning. | Choose only when adding full USB 3.0 host capability - not for passive signal restoration. |
Compared with TUSB211IRWBR and USB3320-EZK, the PI3EQX7741AIZDEX uniquely delivers dual-channel independence, pin-strapped signal conditioning, and autonomous power state management - making it optimal for high-integrity, thermally constrained, or cable-extended USB 3.0 links where protocol transparency and minimal host interaction are required.
Availability
PI3EQX7741AIZDEX is available at Aetrix Electronics and suitable for external storage docking stations, USB 3.0 active cable assemblies, and embedded host controller expansion requiring stable component supply and long-term industrial availability.
Supply support for PI3EQX7741AIZDEX 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 acquired Pericom Semiconductor in 2017 and integrates its high-speed interface portfolio into signal integrity solutions for USB, PCIe, HDMI, and DisplayPort applications.
The PI3EQX7741AIZDEX belongs to Pericom's ReDriver™ family, engineered specifically to restore signal integrity in USB 3.0 Gen1 links without altering packet structure or requiring host-side driver updates.
FAQ
What is the function of the RxDet pin on PI3EQX7741AIZDEX?
The RxDet pin enables automatic receiver detection when pulled high. It initiates a per-channel loop that monitors input signal presence; if idle for >25 ms, the channel enters Unplug Mode if no load is detected, or transitions to Slumber Mode if inactive but connected. This eliminates manual enumeration triggers during hot-plug events.
Does PI3EQX7741AIZDEX require I²C or other serial configuration?
No. All configuration - including equalization level (EQ_x), de-emphasis (DE_x), and channel enable (EN_x#) - is performed via hard-wired pin strapping. No clock, data lines, or firmware initialization are needed, reducing BOM count and boot-time dependencies.
How does the slumber mode reduce power consumption?
Slumber mode disables internal bias circuits and analog front-end blocks while retaining pin-state awareness. Power drops to <100 µW per channel, and recovery to full operation occurs within 100 ns of valid input signal detection - meeting USB 3.0 link training timing requirements.
Can PI3EQX7741AIZDEX be used with USB 3.1 or USB 3.2 Gen1 links?
Yes. USB 3.1 and USB 3.2 Gen1 maintain identical 5.0 Gbps physical layer specifications and encoding. The PI3EQX7741AIZDEX is protocol-transparent and fully compatible with all USB 3.x Gen1 implementations, including those using SSIC or alternate lane configurations.
PI3EQX7741AIZDEX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- ReDriver™
- Package/Case:
- 20-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Buffer, ReDriver
- Applications:
- USB 3.0
- Input:
- CML
- Output:
- CML
- Data Rate (Max):
- 5Gbps
- Number of Channels:
- 1
- Delay Time:
- -
- Signal Conditioning:
- Input Equalization, Output De-Emphasis
- Capacitance - Input:
- -
- Voltage - Supply:
- 3V ~ 3.6V
- Current - Supply:
- 125mA
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TQFN (4x4)
PI3EQX7741AIZDEX FAQ
1.How can I place an order for PI3EQX7741AIZDEX through Aetrix?
Please submit a Request for Quotation (RFQ) for PI3EQX7741AIZDEX 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 PI3EQX7741AIZDEX reliable?
The price and inventory of PI3EQX7741AIZDEX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI3EQX7741AIZDEX is usually 5 days.
3.What payment methods are accepted for PI3EQX7741AIZDEX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI3EQX7741AIZDEX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI3EQX7741AIZDEX?
PI3EQX7741AIZDEX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI3EQX7741AIZDEX 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 PI3EQX7741AIZDEX?
For technical support, including PI3EQX7741AIZDEX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI3EQX7741AIZDEX requirements.
6.How does Aetrix verify that PI3EQX7741AIZDEX is sourced from the original manufacturer or authorized distributors?
All PI3EQX7741AIZDEX 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 PI3EQX7741AIZDEX meets industry standards.
7.What is the process for return or replacement of PI3EQX7741AIZDEX?
All PI3EQX7741AIZDEX units undergo pre-shipment inspection (PSI). If there is an issue with PI3EQX7741AIZDEX, 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 PI3EQX7741AIZDEX part is unused and in its original packaging.
Return procedure for PI3EQX7741AIZDEX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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