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Diodes Incorporated PI3HDX12221BZLDEX
- Part No.:
- PI3HDX12221BZLDEX
- Manufacturer:
- Diodes Incorporated
- Category:
- Analog Switches - Special Purpose
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
PI3HDX12221BZLDEX.pdf
- Description:
- ACTIVE HDMI W-QFN3060-40 T&R 3.5
- Quantity:
- Payment:
- Shipping:
Inventory:3,500
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Product details
Overview
PI3HDX12221BZLDEX from Diodes Incorporated is a 12Gbps HDMI 2.1-compliant 2-to-1 active multiplexer with integrated linear ReDriver™, I²C and pin-strapped control, 3.3V supply, -40°C to +85°C operation, and TQFN-40 (3×6mm) package. It equalizes four differential TMDS channels up to +8.8dB at 6GHz for HDMI 2.1 link extension in digital TV and gaming console source switching.
For engineers reviewing the PI3HDX12221BZLDEX datasheet, PI3HDX12221BZLDEX pinout, PI3HDX12221BZLDEX application, or PI3HDX12221BZLDEX equivalent, key selection criteria include HDMI 2.1/DP++ dual-mode support, CTLE-based ISI jitter reduction, quad-level flat gain programmability, and 40-pin TQFN thermal performance under 3.3V ±10% supply.
Technical Context
The device implements a non-blocking linear ReDriver architecture with input-side CTLE equalizers to reduce inter-symbol interference jitter and compensate channel insertion loss across 4 TMDS lanes. Each lane supports independent gain tuning via I²C or combinational pin strap logic.
It natively supports HDMI 1.4/2.0/2.1 and DisplayPort Dual-Mode (DP++) level-shifting, enabling transparent HDMI signal routing from GPU sources to HDMI or DP++ sinks without protocol translation or retiming.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | Up to 12 Gbps per lane - enables full HDMI 2.1 Ultra HD 4K@120Hz/8K@60Hz video transmission |
| Equalization Gain | +8.8 dB @ 6 GHz - compensates >15 dB channel loss for 15+ cm FR4 PCB traces at HDMI 2.1 speeds |
| Supply Voltage | 3.3 V ±10% - compatible with standard system IO rails; no auxiliary voltage required |
| Operating Temp | -40°C to +85°C - qualified for industrial-grade display subsystems including digital signage and gaming hardware |
| Interface Control | I²C (up to 400 kHz) + 4-pin strap logic - enables flexible factory tuning or runtime reconfiguration without MCU firmware overhead |
| Compliance | HDMI 2.1, HDMI 2.0, HDMI 1.4, DP++ v1.1 - supports hybrid source muxing between GPU HDMI and DP++ outputs |
Pinout & Package
Package: 40-contact, 3 mm × 6 mm TQFN (ZLD code), exposed thermal pad, 0.4 mm pitch, RoHS-compliant and halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | 3.3V main supply for all analog and digital blocks; requires local 100nF + 1µF decoupling |
| GND | Ground reference | Common return for analog/digital domains; tied to exposed thermal pad for thermal dissipation |
| SDA / SCL | I²C bidirectional interface | Supports dynamic EQ gain, flat gain, and output swing adjustment during system operation |
| EQ0–EQ1 | Equalizer gain select inputs | 2-bit strap control for four CTLE gain levels: 0 dB, +3.5 dB, +5.5 dB, +8.8 dB |
| FG0–FG1 | Flat gain select inputs | 2-bit strap control for flat gain settings: 0 dB, +1.5 dB, +3.0 dB, +4.5 dB |
| OS0–OS1 | Output swing linearity select | 2-bit strap control for output amplitude and linearity optimization across trace lengths |
| IN0+/IN0− … IN3+/IN3− | Differential TMDS input pairs | Two 4-lane sources (e.g., GPU HDMI + DP++ converter); mux selects one set to output |
| OUT0+/OUT0− … OUT3+/OUT3− | Differential TMDS output pairs | Single 4-lane output driving HDMI receptacle or DP++ sink with linear redriving |
Key Features
| Feature | Design Value |
|---|---|
| Linear ReDriver™ architecture | Preserves pre-shoot/de-emphasis waveforms end-to-end; avoids signal distortion from retiming or limiting |
| CTLE-based input equalization | Reduces ISI-induced jitter by >30% at 6 GHz, improving eye height/width for HDMI 2.1 compliance |
| Dual-mode DP++ level shift | Enables direct connection of DP++ source to HDMI sink without external level translators or protocol converters |
| Quad-level programmable flat gain | Four discrete flat gain settings allow precise eye diagram opening control for varying PCB loss profiles |
| Compact 3×6 mm TQFN-40 | Minimizes board area vs. legacy 5×5 mm or QFN-48 solutions while maintaining thermal performance |
Applications
| Digital Television Source Switching | Gaming Console HDMI Muxing |
|---|---|
Use Scenario: Switching between two HDMI 2.1 sources (e.g., STB and streaming dongle) into single TV input with full 4K@120Hz support. IC Role / Device Role / Timing Role: Active 2-to-1 mux with linear redriving ensures signal integrity across long internal flex cables and connectors. Use Value: Eliminates need for external equalizers or retimers; maintains HDMI 2.1 CTS compliance over 12Gbps channel. | Use Scenario: Routing GPU HDMI and DP++ outputs from next-gen console SoC to shared HDMI display port. IC Role / Device Role / Timing Role: Dual-mode level shifter and linear ReDriver enable seamless DP++-to-HDMI conversion without protocol handshaking delay. Use Value: Reduces BOM count by replacing discrete level shifter + redriver combo; supports plug-and-play display detection. |
| Laptop Docking Station Hub | Workstation GPU Output Multiplexing |
Use Scenario: Aggregating HDMI 2.1 outputs from laptop and external GPU into single monitor port on USB-C dock. IC Role / Device Role / Timing Role: Low-latency 2-to-1 mux with I²C runtime reconfiguration allows OS-driven source selection without display blanking. Use Value: Enables zero-frame-drop switching between integrated and discrete graphics; meets USB-C Alt Mode timing budgets. | Use Scenario: Selecting between dual workstation GPUs (e.g., NVIDIA RTX and AMD Radeon Pro) feeding single high-res display wall controller. IC Role / Device Role / Timing Role: Industrial-temp rated linear redriver preserves signal fidelity across backplane traces up to 20 cm. Use Value: Supports simultaneous 8K@60Hz dual-GPU rendering output without eye closure or bit errors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar HDMI 2.1 mux and redriver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TI TUSB546IRWBR | Retimer-based (not linear ReDriver); requires HDMI protocol handshake; no DP++ support | Designed for USB-C Alt Mode docking only; lacks pin-strapped gain control | Prefer when HDMI CTS compliance validation is mandatory and DP++ is not needed |
| Pericom PI3HDX12221AZLDEX | Same die, but with different I²C address and strap default; identical electrical specs and pinout | No functional difference; used for variant SKU management in multi-source supply chains | Select when matching existing design's I²C address map or qualification documentation |
Compared with TI TUSB546IRWBR, PI3HDX12221BZLDEX offers lower latency and DP++ compatibility; versus PI3HDX12221AZLDEX, it provides distinct I²C addressing for concurrent use in multi-device systems without bus conflict.
Availability
PI3HDX12221BZLDEX is available at Aetrix Electronics and suitable for digital television, gaming console, and workstation display subsystems requiring stable component supply, HDMI 2.1 signal integrity, and industrial temperature operation.
Supply support for PI3HDX12221BZLDEX 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 signal integrity, power management, and interface solutions for consumer, industrial, and computing markets.
This device belongs to Diodes' ReDriver™ and HDMI/DisplayPort interface product line, engineered specifically for high-speed source muxing and channel loss compensation in ultra-HD video systems.
FAQ
Does PI3HDX12221BZLDEX require external termination resistors?
No. The device integrates 100Ω differential input and output termination internally. External termination is unnecessary and may degrade signal integrity. Layout guidelines specify controlled-impedance 100Ω differential routing directly to INx/OUTx pins without stubs or vias near the package.
Can PI3HDX12221BZLDEX operate with only pin-strap control-no I²C connection?
Yes. All configuration parameters-including EQ gain, flat gain, and output swing linearity-are fully selectable via four strap pins (EQ0/EQ1/FG0/FG1). I²C is optional for dynamic runtime updates and does not affect basic functionality.
What is the maximum supported trace length for HDMI 2.1 operation?
With +8.8 dB CTLE gain enabled, the device extends usable HDMI 2.1 channel length to ≥18 cm on standard 6-layer FR4 PCB (5-mil trace, 5-mil space, 10-mil prepreg). Performance validated per HDMI CTS 2.1a test plan using PRBS31 pattern at 12 Gbps.
Is PI3HDX12221BZLDEX qualified for automotive applications?
No. It is specified for industrial temperature range (-40°C to +85°C) but is not AEC-Q100 qualified. Diodes offers automotive-grade variants (e.g., PI3HDX12221BQZLEX) with PPAP support, IATF 16949 manufacturing, and extended reliability testing for infotainment systems.
PI3HDX12221BZLDEX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 40-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Telecommunications
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Switch Circuit:
- SPDT
- Number of Channels:
- 4
- On-State Resistance (Max):
- -
- Voltage - Supply, Single (V+):
- 2.97V ~ 3.63V
- Voltage - Supply, Dual (V±):
- -
- -3db Bandwidth:
- -
- Features:
- HDMI
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 40-TQFN (3x6)
PI3HDX12221BZLDEX FAQ
1.How can I place an order for PI3HDX12221BZLDEX through Aetrix?
Please submit a Request for Quotation (RFQ) for PI3HDX12221BZLDEX 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 PI3HDX12221BZLDEX reliable?
The price and inventory of PI3HDX12221BZLDEX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI3HDX12221BZLDEX is usually 5 days.
3.What payment methods are accepted for PI3HDX12221BZLDEX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI3HDX12221BZLDEX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI3HDX12221BZLDEX?
PI3HDX12221BZLDEX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI3HDX12221BZLDEX 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 PI3HDX12221BZLDEX?
For technical support, including PI3HDX12221BZLDEX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI3HDX12221BZLDEX requirements.
6.How does Aetrix verify that PI3HDX12221BZLDEX is sourced from the original manufacturer or authorized distributors?
All PI3HDX12221BZLDEX 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 PI3HDX12221BZLDEX meets industry standards.
7.What is the process for return or replacement of PI3HDX12221BZLDEX?
All PI3HDX12221BZLDEX units undergo pre-shipment inspection (PSI). If there is an issue with PI3HDX12221BZLDEX, 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 PI3HDX12221BZLDEX part is unused and in its original packaging.
Return procedure for PI3HDX12221BZLDEX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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