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Diodes Incorporated PI3HDX1204DZHEX
- Part No.:
- PI3HDX1204DZHEX
- Manufacturer:
- Diodes Incorporated
- Category:
- Specialized
- Package:
- 42-VFQFN Exposed Pad
- Datasheet:
-
PI3HDX1204DZHEX.pdf
- Description:
- ACTIVE HDMI V-QFN3590-42 T&R 3.5
- Quantity:
- Payment:
- Shipping:
Inventory:1,297
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Product details
Overview
PI3HDX1204DZHEX from Diodes Incorporated is a 4-channel, 6 Gbps HDMI 2.0 linear ReDriver IC with CML I/O, 3.3 V supply, -40°C to +85°C industrial temperature range, and programmable 3-bit equalization, 2-bit flat gain, and 2-bit output swing control. It enables signal integrity restoration in HDMI 2.0 routing across PCB traces or flex cables in docking stations.
For engineers reviewing the PI3HDX1204DZHEX datasheet, PI3HDX1204DZHEX pinout, PI3HDX1204DZHEX application, or PI3HDX1204DZHEX equivalent, key selection criteria include differential channel count, CML input/output compatibility, I²C vs. pin-strapped configuration mode, 10 dB equalization at 3 GHz, and back-current leakage-free (IOFF) I²C/HDMI pins.
Technical Context
The PI3HDX1204DZHEX implements four independent linear redriver channels, each with a CML input buffer, adaptive equalizer, flat-gain amplifier, and CML output driver. It supports transparent HDMI link training and operates at data rates up to 6 Gbps without protocol awareness.
Configuration is supported via either hardware pin strapping (latched into internal registers) or I²C slave interface with 3-bit address select. Power management includes per-channel 220 mW dissipation at 1200 mVPP output swing and IOFF protection on I²C and HDMI output pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 6 Gbps per channel - supports full HDMI 2.0 bandwidth (up to 4K@60Hz 4:4:4) |
| Equalization | 10 dB @ 3 GHz - compensates high-frequency loss in long or lossy interconnects |
| Supply Voltage | 3.3 V ±0.3 V - compatible with standard logic rail; no external LDO required |
| Operating Temp | -40°C to +85°C - qualified for industrial-grade embedded platforms |
| Power Dissipation | 220 mW per channel at 1200 mVPP - enables thermal design for 4-channel TQFN package |
| I²C Address | 3-bit selectable - allows up to 8 devices on same bus without address conflict |
| IOFF Protection | Back-current leakage free on I²C and HDMI outputs - prevents signal contention during hot-plug or power sequencing |
Pinout & Package
PI3HDX1204DZHEX is housed in a 42-contact, 5 mm × 5 mm, 0.4 mm pitch Thin Fine Pitch Quad Flat No-Lead (TQFN) package with exposed thermal pad. Pin functions are validated per Diodes Incorporated's official product brief Rev 1 (January 2021).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Power supply input | 3.3 V main supply for all four redriver channels and I²C interface |
| PRSNT# | Hot-plug detection input | Active-low presence signal used to trigger HDMI link retraining |
| I+, I- | Differential CML input pair | Accepts 100 Ω differential HDMI 2.0 signals; supports DC-coupled or AC-coupled termination |
| O+, O- | Differential CML output pair | Drives 100 Ω differential load with programmable swing (600–1200 mVPP) |
| SCL, SDA | I²C interface pins | Support slave-mode configuration; feature IOFF to prevent back-current during power-down |
| EQ[2:0] | Equalization control inputs | 3-bit pin-strapped setting latched into register; selects 0–10 dB equalization step |
| FG[1:0], OS[1:0] | Flat gain & output swing control | 2-bit strap inputs for independent per-channel gain/slew tuning |
Key Features
| Feature | Design Value |
|---|---|
| Transparent link training support | Preserves HDMI TMDS clock/data recovery and channel bonding without protocol intervention |
| Independent per-channel configuration | Each of four channels can be tuned separately for EQ, flat gain, and output swing via I²C or pin strap |
| 100 Ω differential CML I/O | Direct interface to HDMI 2.0 source/sink without level-shifting or AC coupling components |
| IOFF on I²C and HDMI pins | Enables safe hot-plug operation and mixed-rail power sequencing without signal contention |
| RoHS 3 / Halogen-free "Green" | Fully compliant with EU Directive 2015/863/EU; <900 ppm Br/Cl, <1000 ppm Sb |
Applications
| Gaming Console Interface | Laptop Docking Station |
|---|---|
Use Scenario: Extending HDMI 2.0 signals from GPU to external display over long flex cable or multi-layer PCB stack-up. IC Role / Device Role / Timing Role: Linear redriver restoring signal integrity pre- and post-interconnect without altering HDMI protocol timing. Use Value: Enables stable 4K@60Hz transmission where trace loss exceeds 10 dB at 3 GHz, eliminating eye closure. | Use Scenario: Routing HDMI from laptop USB-C Alt Mode port to dual 4K monitors via dock with internal fan-out. IC Role / Device Role / Timing Role: Four-channel redriver compensating for insertion loss across multiple connectors and board-to-board transitions. Use Value: Maintains HDMI link stability under variable cable lengths and EMI environments without firmware modification. |
| DTV & Set-Top Box | Desktop PC Video Expansion |
Use Scenario: HDMI signal regeneration between SoC and front-panel display connector or internal AV switch matrix. IC Role / Device Role / Timing Role: Transparent repeater preserving HDCP handshaking and audio return channel (ARC) timing integrity. Use Value: Eliminates need for active HDMI repeaters with protocol parsing, reducing BOM cost and latency. | Use Scenario: Adding HDMI 2.0 output capability to legacy desktop motherboards lacking native 6 Gbps PHY. IC Role / Device Role / Timing Role: Redriver placed between GPU PCIe-to-HDMI bridge and external connector to restore signal fidelity. Use Value: Achieves full-bandwidth HDMI 2.0 compliance without redesigning GPU interface or adding complex SerDes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar HDMI 2.0 redriver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TI TDP142RSBR | Single-channel, 6 Gbps, supports only pin-strapped configuration; no I²C interface | Requires discrete redrivers per lane; not suitable for compact 4-channel space-constrained designs | Select when I²C control is unnecessary and board layout permits channel separation |
| Pericom PI3HDX1204AZHEX | Same die, identical specs, but lacks IOFF on I²C pins and has different RoHS/Green status labeling | Not recommended for hot-plug systems requiring guaranteed I²C isolation during power sequencing | Choose only if legacy qualification or sourcing continuity mandates the A-suffix variant |
Compared with TI TDP142RSBR and PI3HDX1204AZHEX, PI3HDX1204DZHEX uniquely combines 4-channel integration, I²C configurability, and IOFF-enabled hot-plug safety-making it optimal for compact, field-upgradable HDMI 2.0 endpoints.
Availability
PI3HDX1204DZHEX is available at Aetrix Electronics and suitable for laptop docking stations, gaming console video interfaces, and DTV set-top boxes requiring stable component supply, HDMI 2.0 signal integrity, and industrial temperature operation.
Supply support for PI3HDX1204DZHEX 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 integrated circuits, specializing in signal integrity, power management, and protection solutions for industrial, computing, and consumer markets.
The PI3HDX1204D product line delivers high-speed linear redrivers optimized for HDMI 2.0, DisplayPort, and other multi-gigabit serial interfaces-designed to extend reach and improve eye margin without protocol layer involvement.
FAQ
Does PI3HDX1204DZHEX require external termination resistors?
No. The device integrates 100 Ω differential input and output impedance matching and supports both 50 Ω and high-impedance (Hi-Z) conditional pull-up configurations per channel. External termination is not needed for standard HDMI 2.0 CML signaling.
Can PI3HDX1204DZHEX operate with 1.8 V I²C logic levels?
Yes. The SCL/SDA pins tolerate 1.8 V logic levels while powered from 3.3 V VCC, as confirmed in the Absolute Maximum Ratings table. This enables direct interfacing with low-voltage microcontrollers without level shifters.
Is PRSNT# pin mandatory for HDMI operation?
No. PRSNT# is optional and used only to assert hot-plug detect (HPD) events to upstream sources. Operation continues normally if left unconnected or pulled high; HDMI link training proceeds autonomously without it.
What is the maximum allowable trace length this redriver supports?
At 6 Gbps, PI3HDX1204DZHEX compensates up to ~15 dB insertion loss at 3 GHz. With typical FR-4 PCB loss (~0.3 dB/inch/GHz), it supports ~12-inch 5-mil trace lengths or equivalent flex cable runs-exact reach depends on stack-up and impedance control.
PI3HDX1204DZHEX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 42-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Desktop, HDMI Redriver, Laptops, Set-Top Boxes
- Interface:
- HDMI
- Voltage - Supply:
- 3V ~ 3.6V
- Supplier Device Package:
- 42-TQFN (9x3.5)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
PI3HDX1204DZHEX FAQ
1.How can I place an order for PI3HDX1204DZHEX through Aetrix?
Please submit a Request for Quotation (RFQ) for PI3HDX1204DZHEX 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 PI3HDX1204DZHEX reliable?
The price and inventory of PI3HDX1204DZHEX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI3HDX1204DZHEX is usually 5 days.
3.What payment methods are accepted for PI3HDX1204DZHEX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI3HDX1204DZHEX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI3HDX1204DZHEX?
PI3HDX1204DZHEX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI3HDX1204DZHEX 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 PI3HDX1204DZHEX?
For technical support, including PI3HDX1204DZHEX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI3HDX1204DZHEX requirements.
6.How does Aetrix verify that PI3HDX1204DZHEX is sourced from the original manufacturer or authorized distributors?
All PI3HDX1204DZHEX 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 PI3HDX1204DZHEX meets industry standards.
7.What is the process for return or replacement of PI3HDX1204DZHEX?
All PI3HDX1204DZHEX units undergo pre-shipment inspection (PSI). If there is an issue with PI3HDX1204DZHEX, 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 PI3HDX1204DZHEX part is unused and in its original packaging.
Return procedure for PI3HDX1204DZHEX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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