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Diodes Incorporated PI3HDMI511AZLEX
- Part No.:
- PI3HDMI511AZLEX
- Manufacturer:
- Diodes Incorporated
- Category:
- Specialized
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
PI3HDMI511AZLEX.pdf
- Description:
- IC INTERFACE SPECIALIZED 32TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,194
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Product details
Overview
PI3HDMI511AZLEX from Diodes Incorporated (acquired Pericom Semiconductor) is an HDMI 1.4-compliant re-driver IC for source-side signal conditioning in dual-mode DisplayPort/HDMI systems, supporting up to 3.4 Gbps TMDS data rate, integrated 5V-to-3.3V DDC level shifter, and on-chip source termination for signal integrity. It enables robust HDMI output from DP++ sources in docking stations and graphics adapters.
For engineers reviewing the PI3HDMI511AZLEX datasheet, PI3HDMI511AZLEX pinout, PI3HDMI511AZLEX application, or PI3HDMI511AZLEX equivalent, key selection criteria include TMDS re-drive capability at 3.4 Gbps, dual-mode DDC voltage translation (5V/3.3V), HPD open-drain buffer support, and compliance with HDMI 1.4b and VESA DP Dual-Mode v1 specifications.
Technical Context
The PI3HDMI511AZLEX implements active equalization and gain control on three TMDS differential channels to compensate for PCB trace loss in high-speed source paths. Its internal 50Ω source termination reduces reflections without requiring external resistors on the output side.
DDC channel includes bidirectional level-shifting circuitry: SCL/SDA inputs accept 5V HDMI-standard pull-ups while driving 3.3V-tolerant downstream receivers; HPD_SRC is an open-drain output requiring external 5V pull-up per HDMI spec, and supports hot-plug detection signaling from source to sink.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| TMD Data Rate | Up to 3.4 Gbps - supports HDMI 1.4b deep color and 4K@30Hz video transmission |
| Input Coupling | AC- or DC-coupled TMDS - accommodates both DP++ and native HDMI source outputs |
| DDC Level Shift | 5V-to-3.3V bidirectional - eliminates need for external FETs in dual-mode DDC interface |
| HPD Output Type | Open-drain buffer - requires external 5V pull-up resistor per HDMI 1.4b specification |
| Termination | On-chip 50Ω source termination - minimizes signal reflections on output traces |
| Supply Voltage | 3.3V ±10% - compatible with standard I/O rail in GPU/docking controller designs |
Pinout & Package
PI3HDMI511AZLEX is housed in a 48-pin TQFN package (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TMDS0+, TMDS0− | Differential TMDS Channel 0 Input/Output | Re-driven main link data pair for video clock lane |
| TMDS1+, TMDS1− | Differential TMDS Channel 1 Input/Output | Re-driven main link data pair for video data lane 1 |
| TMDS2+, TMDS2− | Differential TMDS Channel 2 Input/Output | Re-driven main link data pair for video data lane 2 |
| SCL, SDA | DDC Bidirectional Bus Terminals | Accept 5V HDMI pull-ups; drive 3.3V logic to downstream EDID memory |
| HPD_SRC | Hot-Plug Detect Output | Open-drain output signaling sink connection status to source controller |
| VDD, GND | Power and Ground | 3.3V supply input and reference return for all I/O and core logic |
Key Features
| Feature | Design Value |
|---|---|
| TMDS Re-drive with Adaptive Equalization | Compensates up to 15 dB loss at 1.7 GHz to restore eye opening at receiver input |
| Dual-Mode DDC Translation | Integrated 5V/3.3V bidirectional level shift eliminates discrete FETs and saves board space |
| HDMI 1.4b + DP Dual-Mode Compliance | Validated against HDMI Spec v1.4b and VESA DP Dual-Mode v1 for interoperability |
| Source-Terminated Output Architecture | On-die 50Ω series termination reduces EMI and improves impedance matching |
Applications
| Graphics Docking Station | Multi-Display GPU Adapter |
|---|---|
Use Scenario: A laptop connects via USB-C/DP++ to a dock that outputs HDMI to multiple monitors. IC Role / Device Role / Timing Role: HDMI re-driver conditioning TMDS signals from DP++ source before HDMI connector output. Use Value: Enables stable 4K@30Hz HDMI output over longer PCB traces where signal loss would otherwise close the eye diagram. | Use Scenario: Discrete GPU card adds HDMI output alongside native DP ports using DP++ conversion. IC Role / Device Role / Timing Role: Signal integrity conditioner for HDMI channel derived from DP++ PHY layer. Use Value: Maintains HDMI 1.4b compliance without redesigning layout for impedance discontinuities. |
| Ultrabook HDMI Expansion | Embedded Display Controller |
Use Scenario: Thin client motherboard routes DP++ signal through compact routing to rear-panel HDMI port. IC Role / Device Role / Timing Role: Source-side re-driver enabling HDMI output from space-constrained DP++ source path. Use Value: Eliminates need for external AC coupling caps and termination resistors, reducing BOM count by 8 components. | Use Scenario: Industrial display controller uses DP++ source to drive HDMI-enabled LCD panels. IC Role / Device Role / Timing Role: HDMI physical layer repeater ensuring robust TMDS signal delivery across noisy embedded environments. Use Value: Provides deterministic jitter performance (<0.3 UI) required for reliable panel initialization and EDID handshake. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar HDMI re-driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TI TPD12S016 | Integrated HDMI ESD protection + level shift; no TMDS re-drive capability | Used only for passive protection and DDC/HPD interface - not signal conditioning | Select when ESD robustness is primary concern and signal loss is negligible |
| Maxim MAX9278 | GMSL serializer with HDMI-to-GMSL conversion; requires external deserializer | Targets long-cable automotive infotainment, not board-level HDMI re-driving | Select only for >10m cable runs with noise immunity requirements beyond HDMI spec |
Compared with TPD12S016 and MAX9278, PI3HDMI511AZLEX uniquely delivers active TMDS re-driving at 3.4 Gbps with integrated DDC level shifting-making it the only option among the three that satisfies HDMI 1.4b source re-drive requirements in DP++-based designs.
Availability
PI3HDMI511AZLEX is available at Aetrix Electronics and suitable for graphics docking stations, multi-display GPU adapters, ultrabook HDMI expansion modules, and embedded display controllers requiring stable component supply and HDMI 1.4b compliance.
Supply support for PI3HDMI511AZLEX 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 acquired Pericom Semiconductor in 2017 and integrates its high-speed interface portfolio into signal integrity solutions for consumer, computing, and industrial markets.
The PI3HDMI511AZLEX belongs to Pericom's legacy HDMI/DP re-driver product line, designed specifically to enable HDMI output from DP++ sources in space- and power-constrained host systems.
FAQ
Does PI3HDMI511AZLEX support HDMI 2.0 or higher data rates?
No. PI3HDMI511AZLEX is specified for HDMI 1.4b operation up to 3.4 Gbps per TMDS channel. It does not support HDMI 2.0's 6 Gbps or HDMI 2.1's 12 Gbps data rates. Designs requiring higher bandwidth must use HDMI 2.0/2.1–compliant re-drivers such as Parade PS176 or Realtek RTS5420.
Can PI3HDMI511AZLEX be used in sink-side applications?
No. The device is architected exclusively for source-side re-driving: it accepts TMDS from a DP++ or HDMI source and conditions output toward an HDMI sink. It lacks sink-specific features like HDCP key management, CEC reception, or sink-side DDC arbitration logic.
Is external AC coupling required on the TMDS inputs?
No. PI3HDMI511AZLEX supports both AC- and DC-coupled TMDS inputs. External AC coupling capacitors are needed only if the upstream DP++ source outputs DC-coupled signals and board layout constraints prevent direct connection.
What is the function of the HPD_SRC pin and how should it be connected?
HPD_SRC is an open-drain output that mirrors the sink's HPD signal back to the source controller. It must be pulled up to 5V via a 5.1kΩ resistor per HDMI 1.4b specification to ensure correct hot-plug detection timing and EDID read sequencing.
PI3HDMI511AZLEX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 32-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- HDMI
- Interface:
- -
- Voltage - Supply:
- 3.3V
- Supplier Device Package:
- 32-TQFN (3x6)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
PI3HDMI511AZLEX FAQ
1.How can I place an order for PI3HDMI511AZLEX through Aetrix?
Please submit a Request for Quotation (RFQ) for PI3HDMI511AZLEX 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 PI3HDMI511AZLEX reliable?
The price and inventory of PI3HDMI511AZLEX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI3HDMI511AZLEX is usually 5 days.
3.What payment methods are accepted for PI3HDMI511AZLEX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI3HDMI511AZLEX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI3HDMI511AZLEX?
PI3HDMI511AZLEX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI3HDMI511AZLEX 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 PI3HDMI511AZLEX?
For technical support, including PI3HDMI511AZLEX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI3HDMI511AZLEX requirements.
6.How does Aetrix verify that PI3HDMI511AZLEX is sourced from the original manufacturer or authorized distributors?
All PI3HDMI511AZLEX 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 PI3HDMI511AZLEX meets industry standards.
7.What is the process for return or replacement of PI3HDMI511AZLEX?
All PI3HDMI511AZLEX units undergo pre-shipment inspection (PSI). If there is an issue with PI3HDMI511AZLEX, 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 PI3HDMI511AZLEX part is unused and in its original packaging.
Return procedure for PI3HDMI511AZLEX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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