TDP142IRNQT - 8.1 Gbps DP1.4 Linear Redriver | Texas Instruments
MPN: TDP142IRNQT β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.24 | $3.24 |
| 10 | $2.95 | $29.50 |
| 100 | $2.45 | $245.00 |
| 500 | $2.1 | $1,050.00 |
| 1,000 | $1.85 | $1,850.00 |
Drop-in alternatives for TDP142IRNQT β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
TDP142RNQT
β Drop-Inπ Reference alternative (not in catalog)
TDP142IRNQR
β Drop-Inπ Reference alternative (not in catalog)
TDP142RNQR
β Drop-Inπ Reference alternative (not in catalog)
SN65DP141
β Drop-Inπ Reference alternative (not in catalog)
PTN3363BS
β Drop-Inπ Reference alternative (not in catalog)
TDP142IRNQT Maximum Ratings & Electrical Characteristics
| Type | DisplayPort 1.4 Linear Redriver |
| Data Rate | 8.1 Gbps per lane (HBR3) |
| Number of Lanes | 1-4 lanes Main Link |
| Supply Voltage | 3.3 V |
| Package | 40-WQFN (6x4 mm) |
| Operating Temperature Range | -40Β°C to +85Β°C (industrial) |
| Interface | I2C for configuration |
| Equalization | Receiver linear equalization (CTLE) |
| AUX Snooping | Yes |
| HPD Snooping | Yes |
| Position Independence | Source, cable, or sink |
| Compliance | VESA DisplayPort Standard Version 1.4 |
| RoHS | Compliant |
| Mounting Type | Surface Mount |
| MSL Level | [DATA_NEEDED: MSL Level] |
TDP142IRNQT Pin Configuration
| Pin 1 | VCC β Power supply (3.3 V) |
| Pin 2 | GND β Ground |
| Pin 3 | ML_LN0_P β Main Link Lane 0 positive |
| Pin 4 | ML_LN0_N β Main Link Lane 0 negative |
| Pin 5 | ML_LN1_P β Main Link Lane 1 positive |
| Pin 6 | ML_LN1_N β Main Link Lane 1 negative |
| Pin 7 | ML_LN2_P β Main Link Lane 2 positive |
| Pin 8 | ML_LN2_N β Main Link Lane 2 negative |
| Pin 9 | ML_LN3_P β Main Link Lane 3 positive |
| Pin 10 | ML_LN3_N β Main Link Lane 3 negative |
| Pin 11 | AUX_P β AUX channel positive |
| Pin 12 | AUX_N β AUX channel negative |
| Pin 13 | HPD β Hot Plug Detect |
| Pin 14 | SCL β I2C clock |
| Pin 15 | SDA β I2C data |
| Pin 16 | EN β Enable (active high) |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
TDP142IRNQT is suitable for 6 applications: Personal Computers, CAD/CAM/CAE Workstations, Point-of-Sale Terminals, Audio/Visual Devices, Docking Stations, Video Distribution Systems.
Personal Computers
The TDP142IRNQT is used in desktop and laptop PCs to extend DisplayPort signal reach from the GPU to the display connector. Its 8.1 Gbps per lane data rate supports high-resolution monitors up to 8K. The linear equalization compensates for PCB trace losses, ensuring a clean signal at the connector. With AUX/HPD snooping, it automatically adapts to link training, providing plug-and-play operation. The industrial temperature range makes it suitable for ruggedized PCs used in industrial environments.
Recommended
CAD/CAM/CAE Workstations
In CAD/CAM/CAE workstations, the TDP142IRNQT ensures reliable DisplayPort signal integrity over longer cable runs to high-resolution monitors. Its 8.1 Gbps per lane bandwidth supports 4K and 5K displays with high refresh rates, critical for detailed design work. The device's low latency is essential for real-time interaction. The I2C interface allows system designers to fine-tune equalization for specific cable lengths, optimizing performance. The industrial temperature range ensures operation in demanding office or lab environments.
Recommended
Point-of-Sale Terminals
The TDP142IRNQT is used in point-of-sale (POS) terminals to drive customer-facing displays and receipt printers. Its compact 40-WQFN package fits space-constrained designs. The device's linear equalization extends DisplayPort signals over longer cables, allowing flexible placement of displays. The industrial temperature range (-40Β°C to +85Β°C) ensures reliable operation in retail environments with varying temperatures. AUX/HPD snooping simplifies system integration by automatically handling hot-plug events.
Recommended
Audio/Visual Devices
In audio/visual devices such as AV receivers, projectors, and video switchers, the TDP142IRNQT ensures high-quality DisplayPort signal transmission. Its 8.1 Gbps per lane data rate supports 4K and 8K video, while the linear equalization compensates for cable losses in home theater installations. The device's low latency is critical for lip-sync accuracy. The I2C interface allows for dynamic equalization adjustment, optimizing performance for different cable lengths. The industrial temperature range makes it suitable for professional AV equipment used in commercial installations.
Recommended
Docking Stations
The TDP142IRNQT is a key component in docking stations, extending DisplayPort signals from a laptop to external monitors. Its position independence allows placement in the dock, cable, or monitor, providing design flexibility. The device's 8.1 Gbps per lane data rate supports multiple 4K displays. The linear equalization compensates for losses in the dock's PCB traces and the cable, ensuring a stable image. AUX/HPD snooping enables automatic configuration when a laptop is docked. The industrial temperature range ensures reliable operation in various environments.
Recommended
Video Distribution Systems
In video distribution systems, the TDP142IRNQT is used to drive DisplayPort signals over longer distances to multiple displays. Its linear equalization compensates for cable and trace losses, ensuring signal integrity. The device's 8.1 Gbps per lane data rate supports high-resolution video distribution. The I2C interface allows for remote configuration and monitoring, making it suitable for centralized control. The industrial temperature range ensures reliable operation in server rooms or industrial settings. The compact package allows for high-density designs.
Recommended
Recommended Products Summary
Engineering reference data for TDP142IRNQT β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TDP142RNQT | TDP142IRNQR | TDP142RNQR | SN65DP141 | PTN3363BS |
|---|---|---|---|---|---|---|
| Package | 40-WQFN (6x4) | 40-WQFN (6x4) | 40-WQFN (6x4) | 40-WQFN (6x4) | 40-WQFN (6x4) | 40-WQFN (6x4) |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | NXP Semiconductors |
| Data Rate | 8.1 Gbps per lane (HBR3) | 8.1 Gbps per lane (HBR3) | 8.1 Gbps per lane (HBR3) | 8.1 Gbps per lane (HBR3) | 5.4 Gbps per lane (HBR2) | 6.0 Gbps per lane (HDMI 2.0) |
| Operating Temperature Range | -40Β°C to +85Β°C | 0Β°C to +70Β°C | -40Β°C to +85Β°C | 0Β°C to +70Β°C | 0Β°C to +70Β°C | -40Β°C to +85Β°C |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Equalization | Receiver linear equalization (CTLE) | Receiver linear equalization (CTLE) | Receiver linear equalization (CTLE) | Receiver linear equalization (CTLE) | Receiver linear equalization (CTLE) | Receiver linear equalization (CTLE) |
| AUX/HPD Snooping | Yes | Yes | Yes | Yes | Yes | Yes |
| I2C Interface | Yes | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Industrial temperature range (vs TDP142RNQT)
- 8.1 Gbps per lane data rate (vs SN65DP141)
- Position independence (vs PTN3363BS)
Design Notes
The TDP142IRNQT operates on a single 3.3 V supply. Place 0.1 Β΅F and 1 Β΅F decoupling capacitors as close as possible to each VCC pin to minimize power supply noise. A bulk capacitor (e.g., 10 Β΅F) on the main 3.3 V rail is recommended to handle transient currents during link training. Ensure the power supply can provide sufficient current for the device and any downstream components.
For optimal signal integrity, route the high-speed differential pairs (ML_LN0-3) with controlled impedance (typically 100 Ξ© differential) and minimize vias and stubs. Keep the traces as short as possible and maintain consistent spacing. The exposed thermal pad should be soldered to a ground plane to improve thermal performance and provide a low-impedance ground reference. Follow the layout guidelines in the TI datasheet for best results.
A common mistake is neglecting the I2C configuration. The TDP142IRNQT can operate in automatic mode, but for optimal performance, configure the equalization settings via I2C to match the specific cable length and trace loss. Also, ensure the AUX and HPD signals are properly connected, as they are used for link training and hot-plug detection. Incorrect termination on the AUX channel can cause link training failures.
Compliance Information
RoHS compliance is indicated by TI's product page. Other compliance data not explicitly provided in the verified data.
