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Diodes Incorporated PI2EQX862XUAEX
- Part No.:
- PI2EQX862XUAEX
- Manufacturer:
- Diodes Incorporated
- Category:
- Signal Buffers, Repeaters, Splitters
- Package:
- 18-XFQFN Exposed Pad
- Datasheet:
-
PI2EQX862XUAEX.pdf
- Description:
- IC REDRIVER PCI/SATA 3.0 18TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,469
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Product details
Overview
PI2EQX862XUAEX from Diodes Incorporated is a single-lane, dual-protocol PCIe 3.0 (8.0 Gb/s) and SATA 3.0 (6.0 Gb/s) ReDriver in an 18-pin 2×2 mm TQFN package, featuring programmable receiver equalization, 100 Ω differential CML I/Os, and auto-squelch per channel for M.2/SATAe interconnects in SSD/HDD docking systems.
For engineers reviewing the PI2EQX862XUAEX datasheet, PI2EQX862XUAEX pinout, PI2EQX862XUAEX application, or PI2EQX862XUAEX equivalent, key selection criteria include per-channel input signal detection threshold (Vth−), 120 mW active power, pin-configurable PCIe-only output emphasis, slumber mode activation, and compatibility with mSATA/M.2/SATAe mechanical form factors.
Technical Context
The PI2EQX862XUAEX implements two independent CML signal paths, each with a limiting amplifier, adjustable equalizer, and squelch circuitry triggered by differential input voltage level detection. It supports protocol-transparent redriving without embedded clock recovery or retiming logic.
Its auto-sensing mode detects SATAe/mSATA/M.2 connector presence to enable appropriate protocol behavior, while auto-slumber mode reduces power when no valid input signal is present on either lane. The device operates from a single 1.2 V supply and requires no external configuration registers or I²C interface.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | PCIe 3.0: 8.0 Gb/s; SATA 3.0: 6.0 Gb/s - supports full-speed operation on both protocols without rate negotiation. |
| Supply Voltage | 1.2 V ±5% - enables direct integration with modern SoC core rails and eliminates need for dedicated LDO. |
| Active Power | 120 mW typical - allows thermal placement near high-density M.2 slots without heatsink requirement. |
| Differential I/O | 100 Ω CML - matches standard PCIe/SATA physical layer impedance for minimal reflection and insertion loss. |
| Equalization | Adjustable receiver EQ - compensates up to 12 dB of channel loss at 4 GHz to restore eye opening at receiver input. |
| Squelch Threshold | Vth− = −100 mV (typ.) - disables output when input falls below detectable level, preventing false signaling during hot-plug or link down. |
| Package | 18-pin TQFN, 2 mm × 2 mm, 0.4 mm pitch - fits within tight M.2 module edge clearance constraints. |
Pinout & Package
18-pin TQFN (2 mm × 2 mm, 0.4 mm pitch), wettable flank, exposed thermal pad (EP connected to GND).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8, 9 | GND | Ground reference for analog/digital domains and thermal dissipation via EP. |
| 10, 11 | XI+, XI− | Differential CML input pair for Lane 0 - accepts PCIe/SATA signals with DC-coupled bias. |
| 12, 13 | XO+, XO− | Differential CML output pair for Lane 0 - drives downstream M.2 or SATAe connector with programmable emphasis. |
| 14, 15 | EQ_0, EQ_1 | Equalization control pins - binary-selectable EQ gain settings (00 to 11) for Lane 0 input path. |
| 16 | EN | Enable input - active-high; pulls internal bias current to disable all functions when low. |
| 17 | VCC | 1.2 V supply input - bypassed externally with 100 nF ceramic capacitor near pin. |
| 18 | EP | Exposed thermal pad - must be soldered to PCB GND plane for thermal and electrical integrity. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-protocol redriving | Single device handles PCIe 3.0 8.0 Gb/s and SATA 3.0 6.0 Gb/s without firmware or mode selection. |
| Per-channel squelch | Independent input-level detection disables output when signal drops below Vth−, eliminating idle noise on unconnected lanes. |
| Auto-slumber mode | Enters ultra-low-power state (<10 µA) automatically when both inputs are inactive, reducing system standby power. |
| Pin-configurable emphasis | Two EQ pins set four discrete equalization levels - no I²C or host intervention required for tuning. |
| M.2/SATAe connector awareness | Hardware auto-sensing detects mSATA/M.2/SATAe mechanical presence to configure optimal signal behavior per interface. |
Applications
| SSD Docking Station | M.2 NVMe Adapter Card |
|---|---|
Use Scenario: High-speed external enclosure connecting U.2 or M.2 SSDs to host via PCIe 3.0 x2/x4 upstream port. IC Role / Device Role / Timing Role: Redrives PCIe 3.0 signals across extended FR4 traces and board-to-board connectors to maintain BER <10⁻¹². Use Value: Compensates for 8–10 dB channel loss at 4 GHz, enabling reliable 8.0 Gb/s operation over 12+ cm of 5-mil trace. | Use Scenario: Low-profile PCIe adapter converting M.2 Key M slot to desktop PCIe x4 slot for legacy motherboards. IC Role / Device Role / Timing Role: Restores signal integrity between M.2 socket and PCIe edge connector, supporting hot-plug detection via squelch. Use Value: Eliminates need for external termination or AC coupling capacitors due to integrated CML I/O and DC bias handling. |
| SATAe Backplane Interconnect | Embedded Industrial Storage Module |
Use Scenario: Multi-drive SATAe backplane in NAS chassis where cables exceed 30 cm and introduce jitter and loss. IC Role / Device Role / Timing Role: Acts as passive redriver on each SATA 3.0 lane to extend reach without introducing latency or protocol overhead. Use Value: Enables use of cost-effective FR4 backplanes instead of expensive controlled-impedance flex cables. | Use Scenario: Fanless industrial PC with onboard M.2 slot requiring robust SATA/PCIe storage support under wide temperature range. IC Role / Device Role / Timing Role: Provides stable redriving with auto-slumber to meet EN55032 Class B emissions and 15-year field life requirements. Use Value: 120 mW active power and −40°C to +85°C operation ensure thermal stability in sealed enclosures without airflow. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PCIe/SATA redriver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PI2EQX864XUAEX | 4-lane version with identical per-lane architecture and same 1.2 V supply; higher total power (480 mW). | Required for x4 PCIe root complex expansion or quad-M.2 carrier boards. | Select when scaling beyond single-lane interconnects while retaining identical layout and firmware footprint. |
| DS125DF410RHAT | 4-channel retimer with embedded CDR, I²C configurability, and higher power (1.2 W); supports PCIe 4.0. | Needed for PCIe 4.0 compliance, jitter cleanup, or multi-protocol switching (e.g., SAS/SATA/PCIe). | Choose only if CDR-based jitter tolerance or future-proofing to 16 Gb/s is mandatory; adds complexity and cost. |
Compared with PI2EQX864XUAEX, the PI2EQX862XUAEX saves board space and power for single-lane M.2 links; versus DS125DF410RHAT, it offers simpler integration and lower cost where retiming and PCIe 4.0 are unnecessary.
Availability
PI2EQX862XUAEX is available at Aetrix Electronics and suitable for SSD docking stations, M.2 adapter cards, SATAe backplanes, and embedded industrial storage modules requiring stable component supply and long-term lifecycle support.
Supply support for PI2EQX862XUAEX 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 PI2EQX862XUAEX belongs to Diodes' high-speed interface redriver product line, designed specifically to extend PCIe 3.0 and SATA 3.0 reach in space-constrained M.2, mSATA, and SATAe storage interfaces.
FAQ
Does PI2EQX862XUAEX require external configuration or I²C programming?
No. The PI2EQX862XUAEX uses hardware pin strapping (EQ_0/EQ_1) for equalization selection and has no I²C interface. All functions-including auto-squelch, auto-slumber, and protocol sensing-are implemented in analog/RTL logic with no firmware or host interaction required.
Can PI2EQX862XUAEX be used in PCIe 4.0 systems?
No. The PI2EQX862XUAEX is specified only for PCIe 3.0 (8.0 Gb/s) and SATA 3.0 (6.0 Gb/s). Its equalization and bandwidth are optimized for 4 GHz Nyquist frequency; it does not meet PCIe 4.0 jitter or eye diagram requirements at 16 Gb/s.
What is the function of the EN pin, and how should it be connected?
The EN pin is an active-high enable input. When pulled high (≥0.7×VCC), the device operates normally; when pulled low or left floating (via internal 100 kΩ pull-down), all channels enter shutdown with <1 µA quiescent current. For always-on operation, tie EN directly to VCC through a 10 kΩ resistor.
Is thermal pad (EP) connection mandatory for reliable operation?
Yes. The exposed thermal pad (Pin 18) must be soldered to a solid GND plane with ≥4 thermal vias. Without this connection, junction temperature exceeds 125°C at full load, triggering thermal shutdown and violating the −40°C to +85°C ambient specification.
PI2EQX862XUAEX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- ReDriver™
- Package/Case:
- 18-XFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Buffer, ReDriver
- Applications:
- PCIe 3.0, SATA 3.0
- Input:
- CML
- Output:
- CML
- Data Rate (Max):
- 8Gbps
- Number of Channels:
- 1
- Delay Time:
- -
- Signal Conditioning:
- Input Equalization, Output De-Emphasis
- Capacitance - Input:
- -
- Voltage - Supply:
- 1.2V
- Current - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 18-X2QFN (2x2)
PI2EQX862XUAEX FAQ
1.How can I place an order for PI2EQX862XUAEX through Aetrix?
Please submit a Request for Quotation (RFQ) for PI2EQX862XUAEX 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 PI2EQX862XUAEX reliable?
The price and inventory of PI2EQX862XUAEX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI2EQX862XUAEX is usually 5 days.
3.What payment methods are accepted for PI2EQX862XUAEX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI2EQX862XUAEX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI2EQX862XUAEX?
PI2EQX862XUAEX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI2EQX862XUAEX 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 PI2EQX862XUAEX?
For technical support, including PI2EQX862XUAEX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI2EQX862XUAEX requirements.
6.How does Aetrix verify that PI2EQX862XUAEX is sourced from the original manufacturer or authorized distributors?
All PI2EQX862XUAEX 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 PI2EQX862XUAEX meets industry standards.
7.What is the process for return or replacement of PI2EQX862XUAEX?
All PI2EQX862XUAEX units undergo pre-shipment inspection (PSI). If there is an issue with PI2EQX862XUAEX, 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 PI2EQX862XUAEX part is unused and in its original packaging.
Return procedure for PI2EQX862XUAEX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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