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Texas Instruments TDES4940RURT
- Part No.:
- TDES4940RURT
- Manufacturer:
- Texas Instruments
- Category:
- Serializers, Deserializers
- Package:
- 88-VFQFN Exposed Pad
- Datasheet:
-
TDES4940RURT.pdf
- Description:
- DESERIALIZER
- Quantity:
- Payment:
- Shipping:
Inventory:250
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Product details
Overview
TDES4940RURT from Texas Instruments is a V3Link Enhanced Video to Embedded DisplayPort (eDP) bridge deserializer IC for high-resolution video transport in automotive and medical displays. It supports 4K @ 60 Hz (30-bit color), VESA DP v1.4a/eDP v1.4b compliance, HBR3 link rate (8.1 Gbps per lane), dual-channel V3Link up to 27 Gbps, and operates from 1.8V/1.15V supplies across –20°C to +85°C.
For engineers reviewing the TDES4940RURT datasheet, TDES4940RURT pinout, TDES4940RURT application, or TDES4940RURT equivalent, key selection criteria include V3Link receiver capability, eDP transmitter compliance, HDCP v1.4 integration, adaptive equalization, and VQFNP-88 package thermal performance in space-constrained display systems.
Technical Context
The TDES4940RURT functions as a deserializer in a bidirectional V3Link Enhanced Video chipset, receiving serialized video/audio/control over coax or STP cables and reconstructing it into a native eDP output stream. Its architecture includes dual-channel V3Link receivers with adaptive equalization, a VESA-compliant eDP v1.4b transmitter supporting 1/2/4-lane main link configurations, and integrated HDCP v1.4 with on-chip keys.
Control channel implementation uses two fast-mode-plus I²C interfaces (up to 1 MHz), high-speed GPIOs enabling SPI/UART pass-through, and ultra-low-latency command routing. Diagnostics include on-die temperature/voltage monitoring, BIST, CRC error detection, ECC on control bits, and unique ID for anti-counterfeiting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Video Interface | V3Link Enhanced Video receiver + eDP v1.4b transmitter; enables single-cable 4K video + control over coax/STP |
| Max Data Rate | 27 Gbps aggregate (13.5 Gbps per channel × 2); supports 4K@60Hz with 30-bit color depth |
| eDP Link Capability | HBR3 (8.1 Gbps/lane), 1/2/4-lane configurable; meets VESA DP v1.4a spec for robust timing and low jitter |
| Power Supply | 1.8V I/O + 1.15V core; dual-rail operation reduces noise coupling and improves signal integrity in mixed-signal display systems |
| Operating Temp | –20°C to +85°C; qualified for industrial and automotive cabin/medical display environments without derating |
| HDCP Support | Integrated HDCP v1.4 with on-chip keys; eliminates external crypto IC and simplifies content protection certification |
| ESD Rating | IEC 61000-4-2 Level 4 (±8 kV contact, ±15 kV air); ensures robustness during board handling and system integration |
Pinout & Package
The TDES4940RURT is housed in an 88-pin VQFNP (RUR) package, 12 mm × 12 mm body size, 0.5 mm pitch, and 0.9 mm max height - optimized for thermal dissipation and high-density PCB layouts in compact display modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_1P15 | Core power supply | Supplies 1.15V to digital logic and SerDes PHY; requires low-noise regulation and local decoupling |
| VDDIO_1P8 | I/O power supply | Provides 1.8V to eDP lanes, AUX CH, GPIOs, and I²C interfaces; shared rail with host-side level-shifting |
| HPD_IN | Hot Plug Detect input | Monitors sink readiness; asserts active-low signal to initiate eDP link training sequence upon display connection |
| AUX_CH | eDP AUX channel differential pair | Carries DPCD/EDID reads, link configuration, and vendor-specific commands; requires controlled impedance routing |
| LANE[0:3]_TX | eDP main link output lanes | Differential outputs supporting HBR3; each lane configurable for 1/2/4-lane eDP topology with spread-spectrum clocking |
| V3L_CH[0:1]_RX | V3Link Enhanced Video input channels | Dual high-speed serial inputs with adaptive equalization; support daisy-chain or split topologies over coax/STP |
| I2C_SCL/SDA | Primary I²C interface | Fast-mode-plus (1 MHz) bus for configuration, diagnostics, and HDCP key management; pulled up externally |
| GPIO[0:7] | General-purpose I/O | Configurable as inputs/outputs; support SPI/UART pass-through, panel reset, backlight control, or status signaling |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive Receiver Equalization (AEQ) | Compensates for channel loss up to 20 dB at 6.75 GHz; maintains signal integrity over long coax runs in vehicle cabins |
| Ultra-low latency control channel | Sub-10 µs round-trip latency for I²C/GPIO commands; enables real-time panel calibration and dynamic refresh adjustments |
| Integrated HDCP v1.4 | On-chip keys and crypto engine eliminate external HDCP IC; reduce BOM count and simplify security certification |
| V3Link Daisy-chain & Splitting | Supports multi-display architectures from single serializer - e.g., driver + passenger infotainment from one source |
| Built-in BIST & CRC diagnostics | Enables in-system verification of V3Link link health and eDP transmission without external test equipment |
Applications
| Operating Room Displays | Seat Back Entertainment |
|---|---|
Use Scenario: High-reliability 4K surgical visualization requiring zero-frame-loss video transport over 10+ meter coax cabling in EMI-heavy OR environments. IC Role / Device Role / Timing Role: Deserializes V3Link-enhanced video from remote imaging source and transmits synchronized eDP output to medical-grade LCD panel. Use Value: AEQ and SSCG ensure stable 4K60 link under variable cable lengths and EMI; integrated HDCP satisfies HIPAA-aligned content protection requirements. | Use Scenario: Multi-seat in-flight entertainment with centralized media server driving independent 4K displays via daisy-chained V3Link interconnect. IC Role / Device Role / Timing Role: Receives aggregated V3Link stream and splits video/audio/control to individual seat displays using local eDP output and GPIO-based panel control. Use Value: Dual-channel V3Link (27 Gbps) enables simultaneous 4K@60Hz to two seats; SPI pass-through allows seat-specific firmware updates over same physical link. |
| High-Resolution Automotive HMI | Medical Diagnostic Monitors |
Use Scenario: Driver-facing digital cockpit with 4K resolution, touch overlay, and real-time ADAS data overlay on single display. IC Role / Device Role / Timing Role: Bridges V3Link video from domain controller to eDP-driven TFT, while routing touch controller I²C and CAN status signals via GPIOs. Use Value: Ultra-low latency control channel synchronizes touch response (<15 ms) with video frame updates; 1.15V/1.8V dual supply minimizes power domain interference. | Use Scenario: PACS workstation monitor requiring DICOM-compliant grayscale accuracy, flicker-free 4K rendering, and secure image transmission. IC Role / Device Role / Timing Role: Deserializes encrypted diagnostic video over shielded STP and delivers calibrated eDP output with white balance correction enabled. Use Value: On-chip white balance and dithering improve grayscale fidelity; unique ID and ECC on control bits prevent counterfeit module insertion in regulated clinical settings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar video bridge deserializer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX96712GTJ+T | Supports GMSL2 (not V3Link); 12.5 Gbps max; no integrated HDCP; requires external crypto for content protection | Targeted at automotive ADAS cameras (GMSL2 ecosystem); lacks eDP v1.4b transmitter and SuperFrame format support | Select when interfacing with GMSL2 serializers or where HDCP is not required; verify eDP lane compatibility and link training behavior |
| DS90UB940NTRGZTQ1 | FSA-based serializer/deserializer; supports FPD-Link III only; max 4.16 Gbps; no HBR3 or 4K60 capability | Designed for legacy 1080p automotive displays; lacks V3Link enhanced features, daisy-chain, or HDCP v1.4 | Choose only for cost-sensitive 1080p systems with existing FPD-Link III infrastructure; not suitable for 4K or secure content paths |
Compared with MAX96712GTJ+T and DS90UB940NTRGZTQ1, the TDES4940RURT uniquely delivers V3Link-to-eDP bridging with HBR3, integrated HDCP v1.4, and 27 Gbps dual-channel throughput - making it the only option qualified for certified 4K60 medical and premium automotive display links requiring single-cable simplicity and content security.
Availability
TDES4940RURT is available at Aetrix Electronics and suitable for operating room displays, seat back entertainment systems, and high-resolution automotive HMI requiring stable component supply, long-term lifecycle support, and automotive-grade reliability validation.
Supply support for TDES4940RURT 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 company delivering analog and embedded processing solutions, with leadership in automotive, industrial, and medical electronics.
The TDES4940RURT belongs to TI's V3Link Enhanced Video product line, engineered specifically to replace bulky multi-cable video interconnects with single-coax solutions for 4K display systems in safety- and security-critical environments.
FAQ
What video resolutions does the TDES4940RURT support?
The TDES4940RURT supports up to 4K resolution at 60 Hz with 30-bit color depth, enabled by its V3Link Enhanced Video receiver (up to 27 Gbps aggregate) and VESA-compliant eDP v1.4b transmitter with HBR3 capability. It also supports lower resolutions including 2K in compatible V3Link mode, and handles SuperFrame formats for synchronized multi-stream transport. The TDES4940RURT achieves this without external frame buffers or timing controllers.
Does the TDES4940RURT include built-in HDCP support?
Yes, the TDES4940RURT integrates HDCP v1.4 with on-chip cryptographic keys, eliminating the need for external HDCP ICs or firmware-based key management. This allows seamless, standards-compliant content protection for premium video sources such as medical imaging feeds or commercial media streams. The TDES4940RURT handles authentication, encryption, and key renewal internally during eDP link training.
What package type and pin count does the TDES4940RURT use?
The TDES4940RURT uses an 88-pin VQFNP (RUR) package with a 12 mm × 12 mm body size, 0.5 mm pitch, and maximum height of 0.9 mm. This leadless quad flatpack design supports high I/O density and efficient thermal dissipation - critical for sustained 4K video processing in confined display enclosures. The TDES4940RURT's pinout is documented in TI's SNLS747 datasheet, including dedicated V3Link RX, eDP TX, I²C, and GPIO banks.
Can the TDES4940RURT operate in daisy-chain or split configurations?
Yes, the TDES4940RURT supports both daisy-chain and splitting topologies via its dual-channel V3Link Enhanced Video interface. In daisy-chain mode, it forwards control and video data to downstream devices; in split mode, it distributes independent video streams to multiple eDP sinks. This capability is implemented in hardware and requires no external logic - a key feature distinguishing the TDES4940RURT from basic deserializers.
What is the operating temperature range for the TDES4940RURT?
The TDES4940RURT is rated for continuous operation from –20°C to +85°C, meeting industrial and automotive cabin environmental requirements without thermal derating. This range is validated per JEDEC JESD22-A108 and supported by on-die temperature monitoring circuitry that reports real-time die temperature via I²C. The TDES4940RURT maintains full specification compliance - including HBR3 link stability and HDCP handshake timing - across this full range.
TDES4940RURT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 88-VFQFN Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Active
- Function:
- Deserializer
- Data Rate:
- 27Gbps
- Input Type:
- V3Link
- Output Type:
- DisplayPort
- Number of Inputs:
- 2
- Number of Outputs:
- 2
- Voltage - Supply:
- 1.15V, 1.8V
- Operating Temperature:
- -20°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 88-VQFNP (12x12)
TDES4940RURT FAQ
1.How can I place an order for TDES4940RURT through Aetrix?
Please submit a Request for Quotation (RFQ) for TDES4940RURT 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 TDES4940RURT reliable?
The price and inventory of TDES4940RURT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDES4940RURT is usually 5 days.
3.What payment methods are accepted for TDES4940RURT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDES4940RURT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TDES4940RURT?
TDES4940RURT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TDES4940RURT 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 TDES4940RURT?
For technical support, including TDES4940RURT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDES4940RURT requirements.
6.How does Aetrix verify that TDES4940RURT is sourced from the original manufacturer or authorized distributors?
All TDES4940RURT 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 TDES4940RURT meets industry standards.
7.What is the process for return or replacement of TDES4940RURT?
All TDES4940RURT units undergo pre-shipment inspection (PSI). If there is an issue with TDES4940RURT, 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 TDES4940RURT part is unused and in its original packaging.
Return procedure for TDES4940RURT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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