My Inquiry
My Account
Diodes Incorporated PI2EQX16924XUAEX
- Part No.:
- PI2EQX16924XUAEX
- Manufacturer:
- Diodes Incorporated
- Category:
- Signal Buffers, Repeaters, Splitters
- Package:
- 32-XFQFN Exposed Pad
- Datasheet:
-
PI2EQX16924XUAEX.pdf
- Description:
- CLOCK GENERATOR U-QFN8080-100 T&
- Quantity:
- Payment:
- Shipping:
Inventory:3,450
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
PI2EQX16924XUAEX from Diodes Incorporated is a 16 Gbps, 4-channel CML ReDriver IC with linear equalization and flat gain control, designed for PCIe 4.0 signal integrity restoration in server backplanes and storage interconnects. It supports 2.5–16 Gbps serial links, operates at 1.8 V ±5%, and features I²C programmability (up to 1 MHz) with 3-bit address selection.
For engineers reviewing the PI2EQX16924XUAEX datasheet, PI2EQX16924XUAEX pinout, PI2EQX16924XUAEX application, or PI2EQX16924XUAEX equivalent, key selection criteria include PCIe 4.0 compliance, per-channel equalization tuning, differential CML I/O support (100 Ω), industrial temperature range (−40°C to +85°C), and X2QFN-32 package compatibility with high-density routing.
Technical Context
The PI2EQX16924 implements four independent CML receiver channels, each with 3-bit linear equalization control and 2-bit flat gain adjustment, enabling precise pre-emphasis compensation for lossy PCB traces or cables. Its linear amplifier architecture preserves signal shape without decision feedback, supporting transparent retiming-free operation.
Integrated conditional input termination (50 Ω / 4 kΩ / Hi-Z) and output swing control (2-bit) allow dynamic adaptation to varying channel loss profiles. I²C slave interface enables real-time configuration of all channels without requiring external microcontroller intervention during system boot or runtime.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 2.5–16 Gbps per channel - supports full PCIe 4.0 x16 link aggregation with lane splitting. |
| Input Interface | CML differential, 100 Ω termination - matches standard PCIe physical layer signaling requirements. |
| Supply Voltage | 1.8 V ±5% - compatible with low-voltage server SoC I/O domains and reduces power delivery complexity. |
| Operating Temp | −40°C to +85°C - validated for enterprise server chassis and storage enclosure thermal environments. |
| I²C Speed | Up to 1 MHz - enables fast initialization and dynamic reconfiguration during link training phases. |
| Package | X2QFN-32 (2.85 × 4.5 mm) - provides compact footprint and low-inductance ground path for high-speed signal integrity. |
Pinout & Package
PI2EQX16924XUAEX is housed in a 32-pin X2QFN (XUA) package with 0.4 mm pitch, exposed thermal pad, and symmetric pin layout optimized for controlled-impedance routing of four differential pairs plus I²C and power rails.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Power supply input | 1.8 V core supply for all analog and digital circuitry; requires local 100 nF + 1 µF decoupling. |
| GND | Ground reference | Multiple pins assigned to minimize ground bounce across high-speed channels and I²C interface. |
| I+ / I− (×4) | Differential CML input | Accepts lossy PCIe 4.0 signals; internal 50 Ω/4 kΩ/HI-Z selectable termination adapts to source impedance. |
| O+ / O− (×4) | Differential CML output | Drives downstream receivers with programmable swing (2-bit control) and linear amplification. |
| SCL / SDA | I²C bidirectional bus | Supports up to 1 MHz clock rate; 3-bit address select allows up to 8 devices on same bus. |
| PRSNT# | Presence detect input | Active-low open-drain input used for hot-plug detection in modular server/storage backplanes. |
Key Features
| Feature | Design Value |
|---|---|
| Per-channel linear equalization | 3-bit programmable gain boost (0–15 dB) compensates frequency-dependent loss in long traces or flex cables. |
| Flat gain control | 2-bit adjustable DC gain (0–6 dB) maintains signal amplitude across varying channel insertion loss profiles. |
| Conditional input termination | Selectable 50 Ω, 4 kΩ, or Hi-Z modes enable interoperability with diverse CML drivers without external resistors. |
| Output swing control | 2-bit programmable output amplitude ensures compliance with downstream receiver sensitivity thresholds. |
| I²C address flexibility | 3-bit hardware-selectable address supports daisy-chained configuration of up to eight ReDrivers on one bus. |
Applications
| PCIe 4.0 Server Backplane | Enterprise NVMe Storage Rack |
|---|---|
Use Scenario: Extending PCIe 4.0 x16 links across 200+ mm FR4 backplanes with >20 dB loss at 8 GHz. IC Role / Device Role / Timing Role: Transparent ReDriver restoring signal integrity without retiming or protocol awareness. Use Value: Enables reliable x16 lane bifurcation and hot-swap capability while maintaining PCIe 4.0 BER <10⁻¹². | Use Scenario: Interconnecting dual-controller NVMe U.2/U.3 drives in 2U rack with shared switch fabric. IC Role / Device Role / Timing Role: Channel-specific equalization per drive slot to compensate for variable cable lengths and connector losses. Use Value: Eliminates need for custom trace length matching and supports mixed-drive configurations with consistent link training success. |
| AI Accelerator Expansion Chassis | High-Density GPU Interconnect Module |
Use Scenario: Routing PCIe 4.0 signals from host CPU to multiple AI accelerators over mid-plane connectors. IC Role / Device Role / Timing Role: Per-lane linear equalization and flat gain tuning to offset skew and loss variation across 32-lane topology. Use Value: Achieves stable Gen4 link training at full width even with 3+ connector crossings and 15 cm flex routing. | Use Scenario: Signal extension between GPU mezzanine cards and baseboard in liquid-cooled compute modules. IC Role / Device Role / Timing Role: Low-jitter CML buffer with programmable output swing to drive high-capacitance GPU-side receivers. Use Value: Maintains eye height >25 mV at receiver after 12 dB channel loss, ensuring robust link recovery under thermal throttling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ReDriver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TI TUSB1042IRNQT | USB 3.2 Gen 2x2 ReTimer with embedded clock data recovery; not linear equalization-based. | Designed for USB Type-C docking, not PCIe infrastructure; lacks CML I/O and PRSNT# support. | Choose only for USB-native systems requiring retiming, not PCIe signal extension. |
| Renesas uPD720210 | PCIe 3.0 switch with integrated ReDriver functionality; fixed equalization, no I²C tuning. | Provides switching + redriving in single chip; limited to PCIe 3.0 (8 GT/s), no Gen4 support. | Select when combining switching and redriving is required and Gen4 bandwidth is not mandatory. |
Compared with TI TUSB1042IRNQT and Renesas uPD720210, PI2EQX16924XUAEX uniquely delivers PCIe 4.0-compliant linear equalization with per-channel I²C configurability and CML I/O-making it the only option for high-fidelity, retiming-free extension in Gen4 server and storage platforms.
Availability
PI2EQX16924XUAEX is available at Aetrix Electronics and suitable for PCIe 4.0 server backplanes, enterprise NVMe storage racks, and AI accelerator expansion chassis requiring stable component supply and long-term production continuity.
Supply support for PI2EQX16924XUAEX 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 solutions for power management, signal integrity, and connectivity applications.
The PI2EQX16924 belongs to Diodes' ReDriver™ product line, engineered specifically for high-speed serial link extension in PCIe, SAS, and SATA infrastructure where deterministic, low-latency signal restoration is critical.
FAQ
Does PI2EQX16924XUAEX require an external reference clock?
No. The PI2EQX16924XUAEX is a retiming-free linear ReDriver and does not use or require an external reference clock. It operates transparently on incoming CML data streams, preserving original timing and jitter characteristics without clock recovery or data regeneration.
Can PI2EQX16924XUAEX be used with PCIe 5.0 links?
No. The PI2EQX16924XUAEX is specified up to 16 Gbps (PCIe 4.0), with maximum equalization tuned for 8 GHz bandwidth. It does not meet PCIe 5.0's 32 GT/s requirement or its stricter jitter and loss compensation specifications.
What is the function of the PRSNT# pin?
The PRSNT# pin is an active-low, open-drain presence detect input used to signal module insertion status in hot-pluggable server and storage backplanes. It interfaces directly with platform management controllers to trigger link initialization or fault reporting upon card insertion/removal.
Is the X2QFN-32 package RoHS and halogen-free compliant?
Yes. The PI2EQX16924XUAEX package is fully RoHS 3 compliant (2015/863/EU), lead-free, and halogen-free - defined as <900 ppm bromine, <900 ppm chlorine (total Br+Cl <1500 ppm), and <1000 ppm antimony compounds - meeting Diodes' "Green" device standard.
PI2EQX16924XUAEX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 32-XFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Buffer, ReDriver
- Applications:
- I2C, PCIe
- Input:
- CML
- Output:
- CML
- Data Rate (Max):
- 16Gbps
- Number of Channels:
- 4
- Delay Time:
- -
- Signal Conditioning:
- Input Equalization
- Capacitance - Input:
- 10 pF
- Voltage - Supply:
- 1.71V ~ 1.89V
- Current - Supply:
- 160mA
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-X2QFN (2.85x4.5)
PI2EQX16924XUAEX FAQ
1.How can I place an order for PI2EQX16924XUAEX through Aetrix?
Please submit a Request for Quotation (RFQ) for PI2EQX16924XUAEX 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 PI2EQX16924XUAEX reliable?
The price and inventory of PI2EQX16924XUAEX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI2EQX16924XUAEX is usually 5 days.
3.What payment methods are accepted for PI2EQX16924XUAEX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI2EQX16924XUAEX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI2EQX16924XUAEX?
PI2EQX16924XUAEX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI2EQX16924XUAEX 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 PI2EQX16924XUAEX?
For technical support, including PI2EQX16924XUAEX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI2EQX16924XUAEX requirements.
6.How does Aetrix verify that PI2EQX16924XUAEX is sourced from the original manufacturer or authorized distributors?
All PI2EQX16924XUAEX 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 PI2EQX16924XUAEX meets industry standards.
7.What is the process for return or replacement of PI2EQX16924XUAEX?
All PI2EQX16924XUAEX units undergo pre-shipment inspection (PSI). If there is an issue with PI2EQX16924XUAEX, 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 PI2EQX16924XUAEX part is unused and in its original packaging.
Return procedure for PI2EQX16924XUAEX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PI2EQX16924XUAEX 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…
