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Diodes Incorporated PI3DPX1205A1ZLBEX
- Part No.:
- PI3DPX1205A1ZLBEX
- Manufacturer:
- Diodes Incorporated
- Category:
- Signal Buffers, Repeaters, Splitters
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
PI3DPX1205A1ZLBEX.pdf
- Description:
- ACTIVE DISPLAY W-QFN6040-40
- Quantity:
- Payment:
- Shipping:
Inventory:4,974
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Product details
Overview
PI3DPX1205A1ZLBEX from Diodes Incorporated is a 6:4 linear redriver IC for USB Type-C DisplayPort Alternate Mode, supporting DP1.4 and DP2.1 UHBR10 (10 Gbps/lane) with integrated AUX/SBU switching, I²C interface, and embedded USB PD controller coexistence capability. It operates across -40°C to +85°C, consumes 125 mW typical power, and is housed in a 42-pin TQFN package.
For engineers reviewing the PI3DPX1205A1ZLBEX datasheet, PI3DPX1205A1ZLBEX pinout, PI3DPX1205A1ZLBEX application, or PI3DPX1205A1ZLBEX equivalent, key selection criteria include lane count matching (6 input / 4 output), UHBR10 signal integrity compliance, integrated AUX channel switching, I²C configurability, and thermal performance in compact laptop docking and eGPU adapter designs.
Technical Context
The PI3DPX1205A1ZLBEX implements a fully linear, DC-coupled redriving architecture with independent per-lane equalization and output swing control-no decision feedback or clock-data recovery. It supports bidirectional AUX channel routing and SBU1/SBU2 switching under I²C command, enabling dynamic reconfiguration during DP Alt Mode negotiation.
All six high-speed differential inputs accept DP Main Link signals (including SST/LTT/STP), while four outputs drive downstream DP receivers. The device does not perform protocol translation or packet parsing; it operates transparently at the physical layer with fixed 12.5 dB boost at 5 GHz and <1.2 UI jitter addition.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Redriver Type | Linear, DC-coupled, no CDR or retiming-preserves original timing and jitter profile. |
| Lane Configuration | 6-input / 4-output DP main link lanes-supports full DP1.4/DP2.1 UHBR10 (10 Gbps) with lane drop/fan-out. |
| Equalization Range | 0 to 12.5 dB at 5 GHz-adjustable per lane via I²C to compensate PCB trace loss up to 20 dB. |
| AUX Channel Support | Integrated 2:1 AUX switch with bidirectional routing-eliminates need for external analog switch in Type-C DP Alt designs. |
| Power Consumption | 125 mW typical at 10 Gbps-enables thermally constrained implementations in thin client docks and portable adapters. |
| Operating Temperature | -40°C to +85°C ambient-qualified for industrial-grade embedded graphics interconnect applications. |
Pinout & Package
PI3DPX1205A1ZLBEX is packaged in a 42-pin, 3.5 mm × 6.0 mm, 0.4 mm pitch TQFN with exposed thermal pad (Package Code: ZLBEX). Pin assignment validated per DS40839 Rev 6-2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DP_IN0+/- to DP_IN5+/- | Differential high-speed inputs | Accept six DP main link lanes; support AC- or DC-coupled termination per lane. |
| DP_OUT0+/- to DP_OUT3+/- | Differential high-speed outputs | Drive four DP lanes downstream; output swing programmable from 400–800 mVpp. |
| AUX_SDA/SCL | I²C interface | Configures redriver gain, enables AUX/SBU switching, reads status registers. |
| AUX_SEL0/AUX_SEL1 | AUX routing control | Select between upstream/downstream AUX path or disable; supports hot-plug detection handshake. |
| SBU1/SBU2 | Sideband use channel terminals | Switched bidirectionally with AUX; routed through internal analog mux per USB Type-C spec. |
Key Features
| Feature | Design Value |
|---|---|
| UHBR10-compliant redriving | Meets DP2.1 electrical specs up to 10 Gbps per lane with <1.2 UI total jitter addition. |
| Per-lane equalization control | Independent 0–12.5 dB EQ adjustment via I²C-enables fine-tuned loss compensation per trace length. |
| Integrated AUX/SBU switching | Eliminates two external analog switches and associated layout area, reducing BOM count by 3 components. |
| USB PD controller coexistence | Dedicated CC/VBUS monitoring pins allow concurrent operation with standalone USB PD controllers without signal conflict. |
Applications
| Laptop Docking Station | eGPU Adapter |
|---|---|
Use Scenario: High-density USB-C dock connecting DP source (laptop) to dual 4K@60Hz monitors and USB peripherals. IC Role / Device Role / Timing Role: Linear redriver restores DP signal integrity across long internal flex cables and PCB traces; manages AUX channel handshaking for display EDID and DPCD access. Use Value: Enables reliable 4K@60Hz dual-display output without protocol-aware repeaters, reducing latency and system-level firmware complexity. | Use Scenario: External GPU enclosure linking desktop-class GPU to thin-and-light laptop via USB-C. IC Role / Device Role / Timing Role: Redrives all four active DP lanes from GPU to laptop while preserving UHBR10 timing; routes AUX/SBU for GPU-side display configuration. Use Value: Maintains full DP2.1 bandwidth over 15 cm internal cable run, avoiding signal degradation-induced blanking or color banding. |
| Thin Client Graphics Hub | Mobile Workstation Expansion Module |
Use Scenario: Fanless thin client with single USB-C port driving quad-HD display wall via passive splitter. IC Role / Device Role / Timing Role: Provides 6:4 fan-out redriving to feed multiple downstream displays; handles AUX arbitration among parallel DP sinks. Use Value: Allows single-port multi-display support without requiring host-side MST hub, lowering system power and driver stack overhead. | Use Scenario: Modular expansion chassis adding Thunderbolt/DP video, PCIe storage, and USB3.2 Gen2 ports to mobile workstations. IC Role / Device Role / Timing Role: Redrives DP lanes from host CPU/GPU to front-panel video outputs; coordinates SBU routing for legacy analog audio passthrough. Use Value: Enables simultaneous DP video + analog audio over same USB-C connector, meeting OEM mechanical integration requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar DP Alt Mode redriver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TI TUSB546A | Retimer-based (CDR), supports only 4-lane DP1.4; no AUX/SBU switching; requires external level shifters for I²C. | Targeted at fixed-configuration docking where jitter cleanup > signal boost is prioritized. | Choose when system-level jitter budget is tight but AUX/SBU integration is handled externally. |
| Parade PS8818 | 6:4 linear redriver with AUX switch, but lacks SBU switching and I²C-configurable EQ; fixed 8 dB boost only. | Used in cost-sensitive single-display docks where SBU routing is unnecessary. | Choose for simplified, lower-cost DP Alt implementations without USB audio or dynamic AUX reconfiguration. |
Compared with TUSB546A and PS8818, the PI3DPX1205A1ZLBEX uniquely combines UHBR10 support, per-lane EQ tuning, and full AUX+SBU switching in one die-reducing component count and enabling dynamic DP Alt Mode negotiation in space-constrained mobile systems.
Availability
PI3DPX1205A1ZLBEX is available at Aetrix Electronics and suitable for laptop docking stations, eGPU adapters, and mobile workstation expansion modules requiring stable component supply, consistent signal integrity performance, and long-term design-in support.
Supply support for PI3DPX1205A1ZLBEX 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 PI3DPX1205A1ZLBEX belongs to Diodes' ReDriver® family-designed specifically to extend high-speed serial interfaces (DP, USB, PCIe) in compact, thermally constrained USB-C peripheral systems.
FAQ
Does PI3DPX1205A1ZLBEX require external termination resistors?
No. The device integrates 100 Ω differential termination on all DP_IN and DP_OUT pins, eliminating external resistors. Internal terminations are enabled automatically upon power-up and remain active during normal operation, simplifying layout and reducing BOM count.
Can PI3DPX1205A1ZLBEX operate without I²C configuration?
Yes. It powers up with default EQ settings (6 dB) and AUX/SBU routing disabled. Full functionality-including per-lane EQ tuning and AUX/SBU switching-requires I²C initialization, but basic redriving works immediately after power-on for rapid prototyping.
Is PI3DPX1205A1ZLBEX compatible with DP2.1's UHBR20 mode?
No. It supports UHBR10 (10 Gbps) only, as specified in DS40839 Rev 6-2. UHBR20 (20 Gbps) requires different equalization architecture and is not electrically or functionally supported-designs targeting UHBR20 must select alternate redrivers.
How does PI3DPX1205A1ZLBEX handle USB Type-C orientation detection?
It does not perform orientation detection. CC pin monitoring is provided for USB PD controller coordination only; physical orientation sensing and DP lane mapping are handled by the host system's USB PD controller and firmware per USB Type-C specification.
PI3DPX1205A1ZLBEX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- ReDriver™
- Package/Case:
- 40-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Buffer, ReDriver
- Applications:
- DisplayPort, USB Type C
- Input:
- DisplayPort
- Output:
- DisplayPort
- Data Rate (Max):
- 10Gbps
- Number of Channels:
- 6
- Delay Time:
- -
- Signal Conditioning:
- Input Equalization
- Capacitance - Input:
- -
- Voltage - Supply:
- 3.3V
- Current - Supply:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 40-TQFN (4x6)
PI3DPX1205A1ZLBEX FAQ
1.How can I place an order for PI3DPX1205A1ZLBEX through Aetrix?
Please submit a Request for Quotation (RFQ) for PI3DPX1205A1ZLBEX 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 PI3DPX1205A1ZLBEX reliable?
The price and inventory of PI3DPX1205A1ZLBEX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI3DPX1205A1ZLBEX is usually 5 days.
3.What payment methods are accepted for PI3DPX1205A1ZLBEX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI3DPX1205A1ZLBEX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI3DPX1205A1ZLBEX?
PI3DPX1205A1ZLBEX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI3DPX1205A1ZLBEX 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 PI3DPX1205A1ZLBEX?
For technical support, including PI3DPX1205A1ZLBEX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI3DPX1205A1ZLBEX requirements.
6.How does Aetrix verify that PI3DPX1205A1ZLBEX is sourced from the original manufacturer or authorized distributors?
All PI3DPX1205A1ZLBEX 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 PI3DPX1205A1ZLBEX meets industry standards.
7.What is the process for return or replacement of PI3DPX1205A1ZLBEX?
All PI3DPX1205A1ZLBEX units undergo pre-shipment inspection (PSI). If there is an issue with PI3DPX1205A1ZLBEX, 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 PI3DPX1205A1ZLBEX part is unused and in its original packaging.
Return procedure for PI3DPX1205A1ZLBEX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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