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Diodes Incorporated PI3HDX1204CZHEX
- Part No.:
- PI3HDX1204CZHEX
- Manufacturer:
- Diodes Incorporated
- Category:
- Specialized
- Package:
- 42-VFQFN Exposed Pad
- Datasheet:
-
PI3HDX1204CZHEX.pdf
- Description:
- ACTIVE HDMI V-QFN3590-42 T&R 3.5
- Quantity:
- Payment:
- Shipping:
Inventory:2,346
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Product details
Overview
PI3HDX1204CZHEX from Diodes Incorporated is a 4-channel HDMI 2.0 linear redriver IC supporting 6 Gbps data rates, 7 dB equalization at 3 GHz, 3.3 V ±0.3 V supply, -40°C to +85°C operation, and dual-mode DP HBR3-to-HDMI level shifting for docking stations and DTVs.
For engineers reviewing the PI3HDX1204CZHEX datasheet, PI3HDX1204CZHEX pinout, PI3HDX1204CZHEX application, or PI3HDX1204CZHEX equivalent, key selection criteria include per-channel I²C/pin-strapped equalizer control (3-bit), output swing (2-bit), flat gain (2-bit), CML I/O compatibility, and back-current leakage-free I²C/HDMI pins.
Technical Context
The PI3HDX1204CZHEX implements four independent linear redriver channels with CML input buffers and CML output amplifiers, each configurable via I²C or pin strapping for equalization (0–7 dB), flat gain (0–6 dB), and output swing (600–1200 mVpp). It supports transparent link training and HDMI 2.0 protocol integrity without altering TMDS coding or rate negotiation.
Its architecture includes conditional 50 Ω or high-impedance input termination, programmable 78 kΩ pull-up on I²C lines, and Ioff protection on both I²C and HDMI output pins to prevent back-current leakage during power sequencing - critical for hot-plug and multi-rail system designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 6 Gbps per channel - supports full HDMI 2.0 bandwidth (4K@60Hz 4:4:4) |
| Equalization | 0–7 dB @ 3 GHz - compensates loss in short-to-medium PCB traces or cables |
| Output Swing | 600–1200 mVpp (2-bit control) - matches HDMI receiver input sensitivity range |
| Flat Gain | 0–6 dB (2-bit control) - adjusts DC/low-frequency gain to maintain signal eye height |
| Supply Voltage | 3.3 V ±0.3 V - compatible with standard logic rails; no external LDO required |
| Power Dissipation | 220 mW per channel at 1200 mVpp - enables thermal management in dense 4-channel layouts |
| Operating Temp | -40°C to +85°C - qualified for industrial-grade embedded video systems |
Pinout & Package
PI3HDX1204CZHEX 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 (ZH code). Pin functions are validated per Diodes Incorporated's official PI3HDX1204C datasheet Rev 2 (March 2021).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Power supply input | 3.3 V supply for all four redriver channels and I²C interface |
| PRSNT# | Hot-plug detection input | Active-low presence signal enabling dynamic HDMI link initialization |
| I+, I- | Differential CML input pair | Accepts 100 Ω differential HDMI/DP signals; supports 50 Ω or 78 kΩ termination |
| O+, O- | Differential CML output pair | Drives HDMI sink with programmable swing; Ioff prevents back-current leakage |
| SCL, SDA | I²C interface pins | Support slave mode configuration and master-mode EEPROM programming; 78 kΩ pull-up enabled |
| A0–A2 | I²C address select inputs | 3-bit strap sets unique I²C slave address (0x48–0x4F) for multi-device bus |
Key Features
| Feature | Design Value |
|---|---|
| Per-channel equalizer control | 3-bit programmable (0–7 dB) - enables trace-length-specific pre-emphasis without firmware overhead |
| Independent flat gain tuning | 2-bit (0–6 dB) - preserves low-frequency content to avoid eye closure in long interconnects |
| HDMI/DP dual-mode support | Level-shifts DP HBR3 (8.1 Gbps) signals to HDMI 2.0-compliant voltage levels - eliminates external level translators |
| Ioff protection | Back-current leakage free on I²C and HDMI outputs - ensures safe power sequencing in multi-rail systems |
| Pin-strapped or I²C config | Hardware-default settings latched into I²C registers - enables boot-time configuration without host CPU intervention |
Applications
| Laptop Docking Station | Gaming Console Video Interface |
|---|---|
Use Scenario: Extending HDMI 2.0 signals from USB-C Alt Mode host to multiple downstream displays via compact dock PCB. IC Role / Device Role / Timing Role: Linear redriver restoring signal integrity across 8–12 cm FR4 traces with 6 dB insertion loss. Use Value: Enables 4K@60Hz transmission without re-timing latency or HDCP renegotiation delays. | Use Scenario: Routing HDMI 2.0 video from GPU SoC to front-panel display and external AV output in space-constrained console chassis. IC Role / Device Role / Timing Role: Per-channel equalization and swing control compensating for asymmetric trace lengths and connector losses. Use Value: Maintains TMDS eye opening >80% at 6 Gbps, meeting HDMI compliance test margin requirements. |
| DTV Mainboard Signal Extension | Set-Top Box HDMI Output Buffering |
Use Scenario: Driving HDMI signals from main SoC to rear-panel connectors through internal flex cables and mid-board vias. IC Role / Device Role / Timing Role: Low-equalizer mode (0–3 dB) applied to short pre-channels; full swing (1200 mVpp) for cable drive. Use Value: Reduces jitter accumulation by 1.2 ps RMS vs. passive routing, improving pixel error rate below 1e-12. | Use Scenario: Boosting HDMI output from low-drive-capability media processor to meet sink input sensitivity over 1.5 m cables. IC Role / Device Role / Timing Role: Flat gain compensation offsets low-frequency droop in long HDMI traces; Ioff prevents sink-side power-backfeed. Use Value: Eliminates need for discrete termination resistors and active level shifters, reducing BOM count by 7 parts per channel. |
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 TDP1420 | Retimer (not linear redriver); requires HDCP re-authentication; higher latency (~30 ns) | Required where link training must be regenerated (e.g., long cable runs >5 m) | Choose only if signal loss exceeds 15 dB or cable length >3 m; not drop-in for PI3HDX1204CZHEX's transparent path |
| Pericom PI3HDX1204AZHEX | Same die, but fixed 50 Ω input termination (no 78 kΩ option); identical pinout and I²C map | Used in cost-sensitive DTV designs where pull-up flexibility is unnecessary | Select when PRSNT# and I²C pull-up configuration are unused; otherwise, PI3HDX1204CZHEX offers broader system compatibility |
Compared with TI TDP1420 and PI3HDX1204AZHEX, PI3HDX1204CZHEX uniquely combines low-latency linear redriving, flexible input termination, and per-channel I²C/pin-strapped tuning - making it optimal for compact, multi-display embedded video interfaces requiring zero protocol disruption.
Availability
PI3HDX1204CZHEX is available at Aetrix Electronics and suitable for laptop docking stations, gaming console video interfaces, and DTV mainboards requiring stable component supply, RoHS 3 compliance, and industrial temperature operation.
Supply support for PI3HDX1204CZHEX 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 ICs, with design centers in Asia, Europe, and the US, serving industrial, computing, and consumer markets.
The PI3HDX1204C product line delivers high-speed signal integrity solutions for HDMI/DisplayPort interconnects, targeting compact, low-latency video extension in space- and power-constrained embedded platforms.
FAQ
Does PI3HDX1204CZHEX require external configuration memory?
No. The device supports pin-strapped default configuration latched into internal I²C registers at power-up. External EEPROM is optional and only used in I²C master mode for factory-programmed settings - not required for basic HDMI redriver operation.
Can PI3HDX1204CZHEX drive HDMI signals over 3-meter passive cables?
No. As a linear redriver, it compensates for PCB trace loss (up to ~12 dB at 3 GHz), not cable attenuation. For >2 m passive HDMI cables, a retimer like TDP1420 is required. PI3HDX1204CZHEX targets board-level signal extension only.
Is PRSNT# pin mandatory for HDMI hot-plug detection?
PRSNT# is optional but recommended. When asserted, it triggers automatic link initialization; if left unconnected, the device operates in always-on mode with manual link training initiation via I²C - functional but less robust for user-removable interfaces.
What is the thermal pad soldering requirement for the ZH package?
The exposed thermal pad must be soldered to a minimum 12 mm² copper pour with ≥4 thermal vias (0.3 mm diameter) connecting to inner ground planes. Diodes' datasheet specifies 1.5 W maximum junction-to-board thermal resistance under this layout - critical for sustained 220 mW/channel operation.
PI3HDX1204CZHEX 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, Level Shifter, Set-Top Boxes
- Interface:
- HDMI
- Voltage - Supply:
- 3V ~ 3.6V
- Supplier Device Package:
- 42-TQFN (9x3.5)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
PI3HDX1204CZHEX FAQ
1.How can I place an order for PI3HDX1204CZHEX through Aetrix?
Please submit a Request for Quotation (RFQ) for PI3HDX1204CZHEX 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 PI3HDX1204CZHEX reliable?
The price and inventory of PI3HDX1204CZHEX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI3HDX1204CZHEX is usually 5 days.
3.What payment methods are accepted for PI3HDX1204CZHEX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI3HDX1204CZHEX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI3HDX1204CZHEX?
PI3HDX1204CZHEX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI3HDX1204CZHEX 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 PI3HDX1204CZHEX?
For technical support, including PI3HDX1204CZHEX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI3HDX1204CZHEX requirements.
6.How does Aetrix verify that PI3HDX1204CZHEX is sourced from the original manufacturer or authorized distributors?
All PI3HDX1204CZHEX 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 PI3HDX1204CZHEX meets industry standards.
7.What is the process for return or replacement of PI3HDX1204CZHEX?
All PI3HDX1204CZHEX units undergo pre-shipment inspection (PSI). If there is an issue with PI3HDX1204CZHEX, 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 PI3HDX1204CZHEX part is unused and in its original packaging.
Return procedure for PI3HDX1204CZHEX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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