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Diodes Incorporated PI3EQX10904ZHEX
- Part No.:
- PI3EQX10904ZHEX
- Manufacturer:
- Diodes Incorporated
- Category:
- Signal Buffers, Repeaters, Splitters
- Package:
- 42-VFQFN Exposed Pad
- Datasheet:
-
PI3EQX10904ZHEX.pdf
- Description:
- IC REDRIVER 4CHAN 10GBPS 42TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,373
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Product details
Overview
PI3EQX10904ZHEX from Diodes Incorporated is a 10Gbps, 4-channel linear ReDriver IC for 10GBASE-KR, 10GbE, and 40GbE applications. It provides programmable linear equalization (1–11.3 Gbps), per-channel output swing control, flat gain, and KR link training compliance in a 42-pin TQFN (9 mm × 3.5 mm) package with flow-through pinout.
For engineers reviewing the PI3EQX10904ZHEX datasheet, PI3EQX10904ZHEX pinout, PI3EQX10904ZHEX application, or PI3EQX10904ZHEX equivalent, key selection criteria include differential CML I/O support, independent channel configuration of equalization/slew/swing, KR-compliant link training, and industrial temperature operation (−40°C to +85°C).
Technical Context
The PI3EQX10904ZHEX implements four independent linear ReDriver channels, each with configurable receiver-side linear equalization and transmitter-side flat-gain amplification to compensate for frequency-dependent loss in high-speed PCB traces, cables, or connectors. It supports both pin-strapped and I²C-based configuration (4-bit address) for per-channel settings including input termination (50 Ω or 200 kΩ to VCC) and output termination (50 Ω to VCC or high-Z).
It integrates per-channel activity detection and power-up output termination sensing, and delivers a highly linear transfer function critical for preserving eye opening in 10GBASE-KR backplane links. The device operates exclusively from a single 3.3 V ±0.3 V supply and meets IEEE 802.3ap KR link training requirements without requiring protocol-specific firmware.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 1–11.3 Gbps - supports 10GBASE-KR, 40GBASE-KR4, and 10G Fibre Channel physical layer signaling |
| Supply Voltage | 3.3 V ±0.3 V - single-rail operation compatible with standard 3.3 V logic and backplane power domains |
| Operating Temp | −40°C to +85°C - qualified for industrial-grade embedded and networking equipment deployment |
| I/O Interface | 4 × 100 Ω differential CML - flow-through routing enables minimal trace discontinuity in dense layout |
| Equalization | Programmable linear EQ per channel - compensates up to ~20 dB insertion loss at 5 GHz without introducing nonlinear distortion |
| Output Swing | Adjustable differential output amplitude - maintains signal integrity across varying channel loss profiles |
| Link Training | Fully compliant with IEEE 802.3ap KR - enables automatic adaptation to host and endpoint channel characteristics |
Pinout & Package
Package: 42-contact TQFN (9 mm × 3.5 mm), Pb-free and RoHS-compliant, flow-through pinout optimized for high-speed differential routing with minimized stub length.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Power supply input | Single 3.3 V rail feeding all four channels and internal bias circuitry |
| GND | Ground reference | Multiple dedicated ground pins distributed across package for low-inductance return paths |
| CHx_IN+, CHx_IN− | Differential data input (per channel) | Accepts CML-level signals; supports selectable 50 Ω or 200 kΩ input termination to VCC |
| CHx_OUT+, CHx_OUT− | Differential data output (per channel) | Drives 100 Ω differential loads; supports 50 Ω to VCC or high-Z output termination |
| SCL/SDA | I²C interface | Configures all channels via 4-bit slave address; supports master/slave mode selection |
| ENx | Channel enable | Hardware-controlled per-channel power gating to reduce dynamic power during idle |
| ACTx | Activity indicator | Open-drain output asserting when valid data detected on corresponding input pair |
Key Features
| Feature | Design Value |
|---|---|
| Per-channel linear equalization | Enables independent compensation of pre-cursor ISI across varied trace lengths per lane |
| KR link training compliance | Eliminates need for custom PHY firmware; interoperates with standard KR-capable MACs and switches |
| Flow-through TQFN package | Reduces impedance discontinuities and crosstalk in high-density 10G backplane routing |
| Input threshold detection | Ensures reliable signal presence detection even under marginal amplitude conditions |
| Pin strap + I²C configuration | Supports factory-set defaults (pin strap) and runtime reconfiguration (I²C) without BOM change |
Applications
| 10GBASE-KR Backplane Interconnect | 40GBASE-KR4 Switch Fabric |
|---|---|
Use Scenario: High-speed interconnect between line card and switch fabric in modular Ethernet switches. IC Role / Device Role / Timing Role: Linear ReDriver placed mid-channel to restore signal integrity degraded by long FR4 traces and connectors. Use Value: Enables >30-inch 10G-KR reach on 6-layer backplanes while maintaining KR-compliant eye mask margin. | Use Scenario: Lane-level signal conditioning in 40G top-of-rack switch stacking interfaces. IC Role / Device Role / Timing Role: Four independent ReDriver channels condition each KR4 lane before reaching the switch ASIC's KR receiver. Use Value: Compensates asymmetric loss across lanes, ensuring simultaneous KR training completion and BER <1e−12. |
| 10G Fibre Channel Storage Arrays | Optical Module Host Interface |
Use Scenario: Signal extension between FC controller and SFP+ cage in enterprise storage enclosures. IC Role / Device Role / Timing Role: ReDriver bridges ~8-inch internal trace run from SoC to front-panel optical module connector. Use Value: Restores jitter budget and eye height lost due to via stubs and connector reflections at 10.51875 Gbps. | Use Scenario: Electrical interface conditioning between host switch ASIC and active optical cable (AOC) or QSFP+ module. IC Role / Device Role / Timing Role: Acts as electrical-to-electrical repeater between host KR PHY and module CDR input. Use Value: Extends compatibility with third-party AOCs exhibiting higher insertion loss than spec-minimum modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed linear ReDriver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS100DF410SQ/NOPB | Retimed architecture with integrated CDR; requires clock reference; higher power (≈450 mW/channel) | Required where deterministic latency or jitter cleanup is mandatory (e.g., PCIe Gen4 retimers) | Select only if CDR functionality and sub-100 fs RMS jitter are required; not drop-in compatible |
| SN65LVPE502CPWR | Fixed 10Gbps linear ReDriver; no I²C interface; no KR training; lower integration (no ACT/EN pins) | Suitable for cost-sensitive, fixed-layout 10GBASE-T PHY extensions with static channel loss | Choose for simplified BOM and layout where KR compliance and per-channel configurability are unnecessary |
Compared with DS100DF410 and SN65LVPE502, the PI3EQX10904ZHEX uniquely combines KR link training, per-channel linear EQ, and flow-through TQFN packaging-enabling robust, adaptive signal restoration in multi-lane 10G/40G backplane systems without added latency or external clocks.
Availability
PI3EQX10904ZHEX is available at Aetrix Electronics and suitable for 10GBASE-KR backplane interconnects, 40GBASE-KR4 switch fabrics, 10G Fibre Channel storage arrays, and optical module host interfaces requiring stable component supply and long-term industrial-grade availability.
Supply support for PI3EQX10904ZHEX 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, headquartered in Plano, Texas, serving industrial, computing, communications, and consumer markets with high-reliability components.
The PI3EQX10904ZHEX belongs to Diodes' high-speed signal integrity product line, designed specifically to extend reach and improve margin in 10G/40G Ethernet and Fibre Channel backplane and board-to-board interconnects.
FAQ
Does PI3EQX10904ZHEX require an external reference clock?
No. The PI3EQX10904ZHEX is a linear ReDriver-not a retimer-so it does not recover or regenerate the clock. It operates transparently on incoming CML data without needing a reference clock, making it suitable for low-latency, zero-jitter-addition applications such as KR backplane links.
Can PI3EQX10904ZHEX be used in PCIe Gen3 applications?
No. While its 1–11.3 Gbps range overlaps PCIe Gen3 (8 GT/s), the PI3EQX10904ZHEX lacks PCIe-specific equalization profiles, compliance test modes, and receiver detection logic. It is explicitly designed and validated for IEEE 802.3ap KR and 10GBASE-KR protocols-not PCIe physical layer specifications.
What is the maximum supported trace loss at 5.65 GHz?
Based on Diodes' characterization data, the PI3EQX10904ZHEX linear equalizer compensates up to 18–20 dB of insertion loss at 5.65 GHz when configured at maximum EQ gain, enabling reliable operation over 24–30 inch FR4 traces with typical via and connector losses included.
Is I²C communication required to operate the device?
No. All default configurations-including equalization level, output swing, and terminations-are set via pin strapping at power-up. I²C is optional and used only for dynamic reconfiguration during system operation or fine-tuning in lab validation.
PI3EQX10904ZHEX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 42-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Buffer, ReDriver
- Applications:
- Ethernet
- Input:
- CML
- Output:
- CML
- Data Rate (Max):
- 10Gbps
- Number of Channels:
- 4
- Delay Time:
- -
- Signal Conditioning:
- Input Equalization
- Capacitance - Input:
- -
- Voltage - Supply:
- 3.3V
- Current - Supply:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 42-TQFN (9x3.5)
PI3EQX10904ZHEX FAQ
1.How can I place an order for PI3EQX10904ZHEX through Aetrix?
Please submit a Request for Quotation (RFQ) for PI3EQX10904ZHEX 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 PI3EQX10904ZHEX reliable?
The price and inventory of PI3EQX10904ZHEX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI3EQX10904ZHEX is usually 5 days.
3.What payment methods are accepted for PI3EQX10904ZHEX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI3EQX10904ZHEX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI3EQX10904ZHEX?
PI3EQX10904ZHEX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI3EQX10904ZHEX 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 PI3EQX10904ZHEX?
For technical support, including PI3EQX10904ZHEX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI3EQX10904ZHEX requirements.
6.How does Aetrix verify that PI3EQX10904ZHEX is sourced from the original manufacturer or authorized distributors?
All PI3EQX10904ZHEX 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 PI3EQX10904ZHEX meets industry standards.
7.What is the process for return or replacement of PI3EQX10904ZHEX?
All PI3EQX10904ZHEX units undergo pre-shipment inspection (PSI). If there is an issue with PI3EQX10904ZHEX, 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 PI3EQX10904ZHEX part is unused and in its original packaging.
Return procedure for PI3EQX10904ZHEX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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