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Diodes Incorporated PI3DBS16222ZLEX
- Part No.:
- PI3DBS16222ZLEX
- Manufacturer:
- Diodes Incorporated
- Category:
- Analog Switches - Special Purpose
- Package:
- 30-WFQFN Exposed Pad
- Datasheet:
-
PI3DBS16222ZLEX.pdf
- Description:
- PCIE SWITCH W-QFN2545-30
- Quantity:
- Payment:
- Shipping:
Inventory:7,763
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Product details
Overview
PI3DBS16222ZLEX from Diodes Incorporated is a 3.3V, 20Gbps, 4-channel differential 2×2 exchange switch with pass-through pinout, supporting PCIe Gen 4, USB 3.1 Gen 2, Thunderbolt 3, and 10G BASE-KR interfaces in server/storage, PC/tablet, and network router applications.
For engineers reviewing the PI3DBS16222ZLEX datasheet, PI3DBS16222ZLEX pinout, PI3DBS16222ZLEX application, or PI3DBS16222ZLEX equivalent, key selection criteria include differential channel count (4), data rate (20Gbps), insertion loss (-2.0dB @ 10GHz), crosstalk (-19dB @ 8GHz), and industrial temperature range (-40°C to +85°C).
Technical Context
The PI3DBS16222ZLEX implements a bidirectional 2×2 differential exchange matrix controlled by a single SEL input: low state routes A↔B and C↔D; high state routes A↔D and B↔C. It operates across all four differential lanes simultaneously without internal termination or equalization.
Designed for high-speed serial protocols, it delivers ≤10ps bit-to-bit skew between ± pairs and maintains signal integrity up to 10GHz with specified insertion loss and crosstalk performance, enabling transparent switching in PCIe Gen 4 and USB 3.1 Gen 2 link layers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 20Gbps aggregate - supports full-width PCIe Gen 4 x4 or dual USB 3.1 Gen 2 lanes |
| Insertion Loss | -2.0dB @ 10GHz - preserves signal amplitude margin for 10G BASE-KR and Thunderbolt 3 compliance |
| Crosstalk | -19dB @ 8GHz - limits inter-pair interference in dense PCB routing environments |
| Bit-to-Bit Skew | ≤10ps between ± signals - ensures differential pair timing alignment critical for NRZ decoding |
| Supply Voltage | 3.3V ±10% - compatible with standard I/O rail in server and client platforms |
| Operating Temp | -40°C to +85°C - validated for industrial-grade embedded and networking equipment |
Pinout & Package
PI3DBS16222ZLEX uses a 30-contact Thin Fine Pitch Quad Flat No-Lead (TQFN) package, ZL30 footprint, 2.5mm × 4.5mm body size, 0.4mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0+, A0− | Differential Input/Output Port A Lane 0 | Primary high-speed differential pair for first lane; pass-through routing in default state |
| B0+, B0− | Differential Input/Output Port B Lane 0 | Connected to A0± when SEL = low; routed to D0± when SEL = high |
| C0+, C0− | Differential Input/Output Port C Lane 0 | Connected to D0± when SEL = low; routed to B0± when SEL = high |
| D0+, D0− | Differential Input/Output Port D Lane 0 | Secondary output port for lane 0 exchange; shares same physical routing constraints as A/B/C |
| SEL | Exchange Control Input | Active-high logic signal selecting between straight-through (A↔B, C↔D) and crossed (A↔D, B↔C) configurations |
| PD | Power-Down Enable | Active-low input disabling internal bias circuitry to reduce static power in idle states |
| VDD, GND | Supply and Ground | Single 3.3V supply with dedicated ground pins per side to minimize noise coupling in RF-sensitive layout |
Key Features
| Feature | Design Value |
|---|---|
| 2×2 Differential Exchange Matrix | Enables dynamic reconfiguration of high-speed serial links without protocol-aware logic or retiming |
| Pass-Through Pinout | Minimizes trace length mismatch and layer transitions on PCB, reducing skew and EMI in Gen 4+ designs |
| Low Insertion Loss at 10GHz | Preserves eye opening for 20Gbps NRZ signals, eliminating need for external redrivers in short-reach applications |
| Bidirectional Operation | Supports upstream/downstream traffic flow in both PCIe root complex and endpoint roles without direction control |
| Industrial Temperature Range | Validated operation across full -40°C to +85°C range, suitable for uncooled network edge and storage enclosure deployments |
Applications
| PCIe Gen 4 Server Backplane Switching | USB 3.1 Gen 2 Tablet Docking Hub |
|---|---|
Use Scenario: Dynamic PCIe lane rerouting in dual-CPU server motherboards to support flexible GPU/NVMe topology allocation. IC Role / Device Role / Timing Role: Transparent 2×2 differential exchange switch enabling hardware-level lane remapping without firmware intervention. Use Value: Eliminates need for PCIe switch ICs with embedded buffers, reducing latency and BOM cost while maintaining Gen 4 signal integrity. | Use Scenario: Single USB-C port on tablet supporting simultaneous display output and high-speed storage via alternate mode negotiation. IC Role / Device Role / Timing Role: Physical layer exchange switch routing DisplayPort and USB 3.1 Gen 2 differential pairs based on CC logic state. Use Value: Enables dual-role functionality using one connector without sacrificing 10Gbps bandwidth or introducing jitter accumulation. |
| Thunderbolt 3 Host Controller Multiplexing | 10G BASE-KR Network Interface Redundancy |
Use Scenario: Sharing a single Thunderbolt 3 controller between two downstream ports on ultrabook docking stations. IC Role / Device Role / Timing Role: High-fidelity 20Gbps differential switch toggling host-side TX/RX lanes between two cable assemblies. Use Value: Doubles port utilization without degrading BER or violating Thunderbolt 3 electrical compliance limits. | Use Scenario: Dual 10G BASE-KR PHYs connected to redundant SFP+ cages in enterprise switches for failover path selection. IC Role / Device Role / Timing Role: Signal-path selector ensuring deterministic sub-10ns switchover between active and standby 10G links. Use Value: Maintains link training stability during switchover by preserving differential impedance and minimizing stub-induced reflections. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed differential exchange switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TS3DV642RHBR | 6-channel, 12Gbps max, 1.8V/3.3V dual-supply, higher insertion loss (-3.2dB @ 6GHz) | Targeted at HDMI 2.0 and DisplayPort 1.2, not PCIe Gen 4 or Thunderbolt 3 compliant | Select only if operating below 12Gbps and requiring lower VDD flexibility |
| MAX4947ETE+ | 4-channel, 5Gbps max, 3.3V only, no pass-through pinout, higher crosstalk (-12dB @ 2.5GHz) | Designed for SATA and USB 2.0, lacks Gen 4/Gen 2 signal integrity specs | Use only in legacy storage or low-speed peripheral multiplexing where 20Gbps performance is unnecessary |
Compared with TS3DV642RHBR and MAX4947ETE+, PI3DBS16222ZLEX uniquely delivers 20Gbps operation with -2.0dB insertion loss at 10GHz and pass-through pinout-enabling direct integration into PCIe Gen 4 and Thunderbolt 3 reference layouts without redesign.
Availability
PI3DBS16222ZLEX is available at Aetrix Electronics and suitable for server backplanes, USB-C docking hubs, Thunderbolt 3 host controllers, and 10G BASE-KR network interfaces requiring stable component supply and long-term industrial temperature support.
Supply support for PI3DBS16222ZLEX 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, specializing in high-performance signal integrity, power management, and interface solutions for computing and communications markets.
The PI3DBS16222 belongs to Diodes' high-speed switch product line, engineered specifically for Gen 4+ serial interface routing in data centers, client devices, and infrastructure equipment where low-latency, low-loss, and pin-compatible exchange capability are mandatory.
FAQ
What is the function of the PD pin on PI3DBS16222ZLEX?
The PD (Power-Down) pin is an active-low control input that disables internal bias circuitry when asserted, reducing quiescent current to <10µA. This feature enables dynamic power gating during link idle states in PCIe ASPM L1 or USB U3 modes without disrupting signal path continuity or requiring external termination changes.
Does PI3DBS16222ZLEX require external termination resistors?
No. PI3DBS16222ZLEX is designed for use with externally terminated 100Ω differential transmission lines. The device itself contains no internal termination and relies on system-level 100Ω parallel termination at receiver ends, consistent with PCIe Gen 4, USB 3.1 Gen 2, and 10G BASE-KR specifications.
Can PI3DBS16222ZLEX be used in AC-coupled signal paths?
Yes. The device supports DC- and AC-coupled differential signaling. Its core switch architecture is capacitive-coupling agnostic, and the recommended AC coupling capacitor value (100nF) matches standard practice for PCIe and USB 3.1 Gen 2 implementations without affecting exchange timing or signal fidelity.
Is PI3DBS16222ZLEX pin-compatible with PI3DBS16222XEAEX?
No. PI3DBS16222ZLEX (30-pin ZL30 TQFN) and PI3DBS16222XEAEX (24-pin XEA24 X1QFN) have different footprints, pin counts, and signal assignments. They share functional equivalence but require separate PCB layouts; no mechanical or electrical pin compatibility exists between the two packages.
PI3DBS16222ZLEX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 30-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- PCI Express®
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Switch Circuit:
- 8PST
- Number of Channels:
- 1
- On-State Resistance (Max):
- -
- Voltage - Supply, Single (V+):
- 2.97V ~ 3.63V
- Voltage - Supply, Dual (V±):
- -
- -3db Bandwidth:
- -
- Features:
- USB 3.1
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 30-TQFN (2.5x4.5)
PI3DBS16222ZLEX FAQ
1.How can I place an order for PI3DBS16222ZLEX through Aetrix?
Please submit a Request for Quotation (RFQ) for PI3DBS16222ZLEX 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 PI3DBS16222ZLEX reliable?
The price and inventory of PI3DBS16222ZLEX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI3DBS16222ZLEX is usually 5 days.
3.What payment methods are accepted for PI3DBS16222ZLEX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI3DBS16222ZLEX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI3DBS16222ZLEX?
PI3DBS16222ZLEX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI3DBS16222ZLEX 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 PI3DBS16222ZLEX?
For technical support, including PI3DBS16222ZLEX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI3DBS16222ZLEX requirements.
6.How does Aetrix verify that PI3DBS16222ZLEX is sourced from the original manufacturer or authorized distributors?
All PI3DBS16222ZLEX 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 PI3DBS16222ZLEX meets industry standards.
7.What is the process for return or replacement of PI3DBS16222ZLEX?
All PI3DBS16222ZLEX units undergo pre-shipment inspection (PSI). If there is an issue with PI3DBS16222ZLEX, 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 PI3DBS16222ZLEX part is unused and in its original packaging.
Return procedure for PI3DBS16222ZLEX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PI3DBS16222ZLEX Tags
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