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Texas Instruments TDP142IRNQR
- Part No.:
- TDP142IRNQR
- Manufacturer:
- Texas Instruments
- Category:
- Specialized
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
TDP142IRNQR.pdf
- Description:
- IC INTERFACE SPECIALIZED 40WQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,058
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Product details
Overview
TDP142IRNQR from Texas Instruments is a DisplayPort™ 1.4 linear redriver IC supporting up to 4 lanes at 8.1 Gbps (HBR3), featuring up to 14 dB receiver equalization, transparent link training compliance, and AUX/HPD signal snooping capability. It operates on a single 3.3 V supply and targets commercial temperature range (0°C to 70°C) in a 40-pin WQFN package.
For engineers reviewing the TDP142IRNQR datasheet, TDP142IRNQR pinout, TDP142IRNQR application, or TDP142IRNQR equivalent, key selection criteria include HBR3 lane count support, GPIO/I2C configurability, equalization gain granularity, thermal performance in compact WQFN layout, and AUX snooping for dynamic lane management in DP source/sink/cable positions.
Technical Context
The TDP142IRNQR implements a position-independent linear redriver architecture with per-lane differential input termination (80–120 Ω), selectable 16-level receiver EQ (1.0–14.4 dB at 4.05 GHz), and deterministic jitter ≤0.08 UIpp at 8.1 Gbps. Its AUX snooping logic monitors DPCD writes to LANE_COUNT_SET (0x00101) and SET_POWER_STATE (0x00600) to dynamically enable/disable lanes.
Configuration is supported via 4-level GPIO pins (DPEQ[1:0], I2C_EN, A0) or I2C interface (up to 1 MHz FM+), with fail-safe HPDIN/DPEN inputs, SNOOPENZ-controlled AUX snoop disable, and hot-plug capability. Power states include active (660 mW), shutdown (0.85 mW), and no-connection (2.4 mW).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 8.1 Gbps per lane (HBR3), compliant with VESA DisplayPort 1.4 standard |
| Equalization Gain | Up to 14 dB at 4.05 GHz, selectable across 16 levels via GPIO or I2C |
| Supply Voltage | 3.3 V ±10%, with 100 ms ramp requirement and 100 mV peak-to-peak noise tolerance |
| Operating Temperature | 0°C to 70°C (commercial grade), validated for tablet, notebook, and docking station environments |
| Package | 40-pin WQFN (RNQ), 4.0 mm × 6.0 mm body, 0.4 mm pitch, thermal pad for PCB heat dissipation |
| Power Consumption | 660 mW typical in 4-lane active mode; 0.85 mW in shutdown state |
| AUX Snooping | Monitors native AUX writes to DPCD registers 0x00101 and 0x00600 for automatic lane count control |
Pinout & Package
40-pin WQFN (RNQ) package with exposed thermal pad; 0.4 mm pitch, 4.0 mm × 6.0 mm footprint. Pin functions validated per TI SLLSEZ1C datasheet Rev C (May 2019).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC (pins 1,6,20,28) | Power supply input | 3.3 V main supply; four dedicated pins reduce IR drop and improve PDN stability |
| INDP[0:3]p/n (pins 9–10,12–13,15–16,18–19) | Differential DP input | Four bidirectional DP lane inputs with 80–120 Ω internal termination; supports AC-coupled HBR3 |
| OUTDP[0:3]p/n (pins 30–31,33–34,36–37,39–40) | Differential DP output | Four lane outputs with 75–120 Ω differential impedance and 1500 mVPP swing |
| AUXp/AUXn (pins 24–25) | AUX channel interface | CMOS I/O pair for snooping native AUX traffic between source and sink without protocol translation |
| HPDIN/RSVD9 (pin 32) | Hot-plug detect input | Failsafe input; asserts low >2 ms to disable all lanes during sink disconnect |
| SNOOPENZ/RSVD8 (pin 29) | AUX snoop enable control | GPIO-level control: low = AUX snooping enabled; high = disabled with all lanes active |
| I2C_EN (pin 17) | Interface mode select | 4-level input: '0' = GPIO mode; '1'/R/F = I2C mode at 3.3 V / 3.3 V / 1.8 V respectively |
| DPEQ[1:0] (pins 2,14) | Equalization gain control | 4-level GPIO pair selecting one of 16 EQ settings (1.0–14.4 dB) for all lanes simultaneously |
Key Features
| Feature | Design Value |
|---|---|
| Position-independent redriving | Valid for source, cable, or sink placement-compensates "negative loss" in overall link budget without disrupting DP link training |
| Dynamic lane management | Real-time AUX snooping enables automatic lane enable/disable based on DPCD LANE_COUNT_SET and SET_POWER_STATE register writes |
| Ultra-low-power architecture | 660 mW active power with 0.85 mW shutdown state; optimized for battery-powered tablets and portable docks |
| Flexible configuration interface | Supports both GPIO (4-level pins) and I2C (1 MHz FM+) programming-no external EEPROM or firmware required |
| Fail-safe HPD/DPEN inputs | Internal 150 kΩ pull-down on HPDIN/DPEN ensures safe default state during power-up or floating conditions |
Applications
| DisplayPort Source Redriving | Active DisplayPort Cable |
|---|---|
Use Scenario: Embedded GPU output in ultrabook motherboard with >12-inch PCB trace to Type-C connector. IC Role / Device Role / Timing Role: Linear redriver placed near GPU to restore HBR3 signal integrity before transmission over flex cable. Use Value: Enables 4-lane 8.1 Gbps operation despite 10 dB insertion loss; eliminates need for retimer-based solutions with higher latency and power. |
Use Scenario: 2-meter active DP cable with integrated electronics for HDMI/DP dual-mode compatibility. IC Role / Device Role / Timing Role: Redriver positioned mid-cable to compensate for conductor loss and maintain eye opening at receiver. Use Value: Supports AC-coupled HDMI 2.0b via DP dual-mode while maintaining <0.08 UIpp deterministic jitter at 8.1 Gbps. |
| Monitor Input Interface | Docking Station Hub |
Use Scenario: 4K60 monitor with embedded scaler receiving DP input from laptop via USB-C. IC Role / Device Role / Timing Role: Redriver placed at monitor's DP receptacle to recover degraded signal after long internal flex routing. Use Value: Restores signal margin for reliable AUX channel communication and stable link training under EMI-prone panel environments. |
Use Scenario: Multi-port dock aggregating DP, USB, and power delivery from single laptop USB-C port. IC Role / Device Role / Timing Role: Redriver isolates DP path from shared USB-C PHY; snoops AUX to coordinate lane count with host GPU. Use Value: Eliminates manual lane configuration; enables seamless plug/unplug with automatic 1/2/4-lane adaptation per display resolution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar DisplayPort redriver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TI TDP140IRNQR | Lower max data rate (5.4 Gbps HBR2), 12 dB max EQ, identical WQFN-40 package and pinout | Targeted for HBR2-only systems; lacks AUX snooping and HBR3 compliance | Select when cost-sensitive HBR2 designs require pin-compatible upgrade path to TDP142IRNQR later |
| Diodes AP142BQF-13 | Same 8.1 Gbps HBR3 support and 14 dB EQ, but uses I2C-only configuration (no GPIO mode) and different pin mapping | Requires PCB redesign due to non-pin-compatible layout; no native AUX snooping logic | Choose only if I2C-only control suffices and board layout allows full rework for alternate footprint |
Compared with TDP142IRNQR, TDP140IRNQR trades HBR3 capability and AUX snooping for lower cost and power in legacy DP 1.2 systems, while AP142BQF-13 offers functional parity but demands layout changes and loses GPIO flexibility and fail-safe HPD handling.
Availability
TDP142IRNQR is available at Aetrix Electronics and suitable for notebooks, docking stations, and active cables requiring stable component supply with guaranteed long-term manufacturability and consistent electrical performance across production lots.
Supply support for TDP142IRNQR 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies, with decades of DisplayPort interface IP development.
The TDP142IRNQR belongs to TI's DisplayPort redriver product line, designed specifically to extend reach and reliability of HBR3 links in space-constrained, thermally sensitive consumer and commercial computing platforms.
FAQ
What is the maximum data rate supported by the TDP142IRNQR?
The TDP142IRNQR supports up to 8.1 Gbps per lane (HBR3) across all four DisplayPort lanes, fully compliant with VESA DisplayPort 1.4 specification. This enables 4K60 RGB or 8K30 video transport over standard copper interconnects when combined with appropriate equalization settings and channel loss compensation.
Does the TDP142IRNQR require external configuration memory?
No, the TDP142IRNQR does not require external configuration memory. It supports standalone operation via 4-level GPIO pins (DPEQ[1:0], I2C_EN, A0) for EQ gain and mode selection, or optional I2C programming without EEPROM dependency. All configuration registers retain state through power cycles only when I2C writes are used with external controller retention.
How does AUX snooping work in the TDP142IRNQR?
The TDP142IRNQR snoops native AUX channel traffic between DisplayPort source and sink, specifically monitoring DPCD register writes to 0x00101 (LANE_COUNT_SET) and 0x00600 (SET_POWER_STATE). Based on those values, it automatically enables or disables corresponding DP lanes-eliminating software intervention and ensuring real-time adaptation to display resolution and power state changes.
What is the thermal performance of the TDP142IRNQR in its WQFN package?
The TDP142IRNQR in RNQ (WQFN-40) package has a junction-to-board thermal resistance (RθJB) of 9.5°C/W and junction-to-ambient (RθJA) of 37.6°C/W. With proper PCB thermal pad connection and ≥2 cm² copper pour, it sustains continuous 4-lane HBR3 operation at 70°C ambient without derating-validated per TI SLLSEZ1C thermal characterization.
Can the TDP142IRNQR be used in DisplayPort dual-mode (DP++) applications?
Yes, the TDP142IRNQR supports DisplayPort dual-mode (DP++) per VESA standard version 1.1, enabling AC-coupled HDMI 2.0b signal conversion. Its linear redriver architecture preserves TMDS timing integrity while allowing AUX snooping and HPD pass-through-making it suitable for USB-C Alt Mode implementations requiring HDMI fallback capability.
TDP142IRNQR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- DisplayPort™
- Package/Case:
- 40-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Personal Computers, CAD/CAM/CAE Workstation, Point-of-Sale Terminals, Audio/Visual Devices, Limited Space Areas
- Interface:
- HDMI
- Voltage - Supply:
- 3V ~ 3.6V
- Supplier Device Package:
- 40-WQFN (6x4)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
TDP142IRNQR FAQ
1.How can I place an order for TDP142IRNQR through Aetrix?
Please submit a Request for Quotation (RFQ) for TDP142IRNQR 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 TDP142IRNQR reliable?
The price and inventory of TDP142IRNQR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDP142IRNQR is usually 5 days.
3.What payment methods are accepted for TDP142IRNQR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDP142IRNQR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TDP142IRNQR?
TDP142IRNQR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TDP142IRNQR 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 TDP142IRNQR?
For technical support, including TDP142IRNQR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDP142IRNQR requirements.
6.How does Aetrix verify that TDP142IRNQR is sourced from the original manufacturer or authorized distributors?
All TDP142IRNQR 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 TDP142IRNQR meets industry standards.
7.What is the process for return or replacement of TDP142IRNQR?
All TDP142IRNQR units undergo pre-shipment inspection (PSI). If there is an issue with TDP142IRNQR, 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 TDP142IRNQR part is unused and in its original packaging.
Return procedure for TDP142IRNQR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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