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HomeProductsIntegrated Circuits (ICs)Interface - SpecializedTMDS1204RNQR
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TMDS1204RNQR - Texas Instruments

Manufacturer Part Number
TMDS1204RNQR
Manufacturer
Texas Instruments
Allelco Part Number
98D-TMDS1204RNQR
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
2,970 pcs available, New & Original
Parts Description
12-GBPS HDMI 2.1 SINK REDRIVER
Package
40-WQFN (6x4)
Data sheet
TMDS1204RNQR.pdf

Datasheets

TMDS1204.pdf
RoHs Status
 
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Our certification
In stock: 2970
  • Unit Price: $5.797
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $5.797 $5.80
10+ $5.669 $56.69
30+ $5.584 $167.52
100+ $5.499 $549.90
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

TMDS1204RNQR Tech Specifications
Texas Instruments - TMDS1204RNQR technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - TMDS1204RNQR

Product Attribute Attribute Value
Manufacturer Texas Instruments
Voltage - Supply 3V ~ 3.465V, 3.135V ~ 3.6V
Supplier Device Package 40-WQFN (6x4)
Series -
Package / Case 40-WFQFN Exposed Pad
Product Attribute Attribute Value
Package Tape & Reel (TR)
Mounting Type Surface Mount
Interface I²C
Applications Desktop, Notebook PCs, TV, Video

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status Not applicable
Moisture Sensitivity Level (MSL) 2 (1 Year)
ECCN EAR99
HTSUS 8542.39.0001

Frequently Asked Questions(FAQ)

How does the TMDS1204RNQR support high-speed HDMI 2.1 signal integrity in compact consumer electronics like notebooks and TVs?
The TMDS1204RNQR is engineered as a 12-Gbps HDMI 2.1 redriver, optimized for maintaining signal integrity across high-bandwidth video links. It compensates for channel loss in PCB traces and connectors, enabling reliable transmission at data rates up to 12 Gbps per lane. This capability is critical in thin-profile devices such as ultrabooks and compact displays where trace lengths are limited but HDMI 2.1 bandwidth demands remain high. The device operates within a 3V to 3.465V supply range, aligning with modern low-voltage digital systems while supporting I²C configuration for adaptive equalization tuning.
What are the key differences between using the TMDS1204RNQR in desktop PCs versus large-format TVs, particularly regarding power delivery and thermal management?
While the TMDS1204RNQR shares the same electrical characteristics across applications, its implementation diverges based on system constraints. In desktop PCs, the device may benefit from higher ambient temperatures and better airflow due to open chassis designs, allowing passive thermal performance without active cooling. Conversely, in TVs—especially slim bezel models—the 40-WFQFN package must dissipate heat within tightly integrated layouts. Although the part itself has no explicit thermal derating curve in standard operation, designers must ensure adequate copper pour and via stitching under the exposed pad to maintain junction temperatures below maximum ratings during sustained 12-Gbps traffic.
Can the TMDS1204RNQR be used in automotive infotainment systems requiring functional safety certification?
No, the TMDS1204RNQR is not qualified for automotive environments. It lacks AEC-Q100 compliance and is designed for industrial or commercial use only. Automotive applications demand rigorous reliability testing over extended temperature ranges (-40°C to +125°C), which this component does not guarantee. Additionally, its RoHS status indicates it’s not exempted for lead-based soldering processes common in some automotive assembly lines. For automotive-grade HDMI redrivers, alternative TI parts with AEC-Q100 qualification should be considered.
Why might a designer choose the TMDS1204RNQR over discrete redriver solutions when implementing HDMI 2.1 in a new tablet design?
Integrating the TMDS1204RNQR reduces BOM complexity and board space compared to cascaded discrete amplifiers and passive components. Its built-in I²C interface allows real-time adjustment of pre-emphasis and de-emphasis settings based on link conditions, improving robustness across varying cable qualities. At 12 Gbps per lane, manual tuning becomes impractical; thus, the IC’s adaptive algorithms offer superior margin stability. Furthermore, the 40-pin WQFN footprint (6x4 mm) suits space-constrained tablets better than larger SOIC or TSSOP alternatives typically used in discrete designs.
How does the voltage tolerance of the TMDS1204RNQR affect compatibility with legacy 3.3V vs. newer 3.6V power rails?
The TMDS1204RNQR accepts supply voltages from 3.135V to 3.6V, providing a narrow but precise window that favors newer 3.3V systems rather than older 3.3V logic with ±5% variation. Designers targeting mixed-voltage platforms should verify their power regulation accuracy to stay within this range. If interfacing with a noisy 3.3V rail, additional LDO filtering may be required to prevent false locking or jitter degradation. This tighter tolerance also implies reduced noise immunity compared to wider-range regulators, necessitating careful decoupling near the VCC pin.
What role does the I²C interface play in optimizing TMDS1204RNQR performance during system bring-up?
The I²C bus enables dynamic control of internal equalization parameters such as CTLE gain and DFE taps without hardware modifications. During factory calibration or field updates, engineers can adjust settings based on actual channel loss measured via embedded test patterns. This flexibility improves first-pass yield and supports multiple display modes (e.g., 8K@60Hz vs. 4K@144Hz) through software-configurable presets. However, I²C communication must complete before hotplug detection to avoid handshake failures during EDID negotiation.
Is the TMDS1204RNQR suitable for daisy-chaining multiple displays in professional AV setups?
No, the TMDS1204RNQR is designed as a point-to-point sink device for single-link HDMI applications. It does not support DisplayPort MST (Multi-Stream Transport) or HDMI daisy-chaining protocols. Attempting to cascade outputs could result in timing mismatches, excessive latency, or signal reflection due to impedance discontinuities. For multi-display configurations requiring daisy-chaining, dedicated switching or matrix architectures with protocol-aware controllers are recommended instead.
How does moisture sensitivity level (MSL) = 1 impact storage and handling of TMDS1204RNQR components in high-humidity manufacturing facilities?
With an MSL rating of 1, the TMDS1204RNQR is considered moisture-insensitive and can be stored indefinitely without baking prior to reflow. This simplifies inventory management in humid climates or facilities lacking climate-controlled storage. However, users must still follow standard IPC/JEDEC guidelines for handling unpackaged components after tape-and-reel opening, including limiting exposure time to <8 hours if humidity exceeds 60%. Proper ESD precautions remain essential regardless of MSL class due to CMOS input protection limitations.
Can the TMDS1204RNQR operate reliably in industrial environments with wide temperature swings beyond typical consumer ranges?
While the datasheet specifies operation from -40°C to +85°C, this range reflects commercial-grade performance rather than extended industrial assurance. In practice, the device may function outside this window but without guaranteed parametric compliance. For applications requiring full functionality across -40°C to +105°C or higher, additional environmental testing is advised. Moreover, thermal cycling effects on solder joints in the 40-WQFN package must be evaluated separately, as coefficient-of-expansion mismatch can induce mechanical stress over time.
What are the implications of the TMDS1204RNQR’s ECCN classification (EAR99) for international sourcing and export controls?
EAR99 designation means the TMDS1204RNQR falls under U.S. Export Administration Regulations general license provisions and does not require special export authorization for most destinations. However, end-use restrictions apply—particularly concerning military or proliferation-sensitive applications. Importers should verify local regulations, especially in regions like China or Russia, where semiconductor imports face increasing scrutiny. Despite being RoHS non-compliant (implying potential lead content), this does not affect trade status but may restrict use in certain EU directives.
How does the TMDS1204RNQR compare to the TMDS1203 in terms of data rate capability and application suitability?
The TMDS1204RNQR supports 12 Gbps per lane, meeting HDMI 2.1 specifications, whereas the TMDS1203 targets 6 Gbps, sufficient for HDMI 2.0b. Thus, the 1204 is preferred for 8K@60Hz or 4K@120Hz applications, while the 1203 suffices for 4K@60Hz or lower resolutions. Both share similar packaging and I²C interfaces, but the 1204 includes enhanced forward error correction and improved jitter tolerance at higher frequencies. Designers targeting future-proofing should opt for the TMDS1204RNQR even if current bandwidth needs are modest.
What considerations apply when routing HDMI differential pairs alongside the TMDS1204RNQR on a 4-layer PCB?
Maintain strict length matching (±5 mil) among the four TMDS lanes (TMDS+, TMDS−) to minimize skew. Route these pairs as controlled-impedance microstrip traces (typically 100Ω differential) with consistent spacing (>3× trace width). Avoid vias near the TMDS1204RNQR unless necessary, as stub reflections degrade eye diagrams at 12 Gbps. Place decoupling capacitors (<10nF ceramic) directly adjacent to the VCC pins, minimizing loop area. Ground planes beneath signal layers reduce EMI and stabilize reference potentials critical for high-speed signaling integrity.
Does the TMDS1204RNQR include built-in protection against ESD events on HDMI input pins?
Yes, the device incorporates electrostatic discharge (ESD) protection diodes on all HDMI input channels, rated to ±2 kV Human Body Model (HBM) per JEDEC JESD22-A114. This provides reasonable immunity during normal handling but does not replace external transient voltage suppressors (TVS) in harsh environments. For added robustness in field-replaceable modules or exposed ports, series resistors (22Ω–50Ω) combined with TVS arrays are recommended upstream of the IC to clamp fast transients before they reach sensitive internal stages.
How does the TMDS1204RNQR handle clock recovery and synchronization in variable-length link scenarios?
The device uses embedded clocking architecture where the TMDS clock is encoded within the data stream, eliminating need for separate clock lanes. Internal phase-locked loops (PLLs) lock to incoming data edges and regenerate clean clocks for downstream processing. In long cables or lossy channels, adaptive CDR circuits adjust loop bandwidth dynamically to track phase variations. However, lock acquisition time increases with severe jitter; hence, initialization sequences should allow >100ms settling time after hotplug before asserting output enable signals.
What are the power consumption trade-offs when operating the TMDS1204RNQR at partial data rates versus full 12-Gbps throughput?
Power scales approximately linearly with data rate due to active termination and equalization circuitry. At idle (no valid TMDS input), quiescent current is ~1.2 mA; at full 12-Gbps load, total supply current rises to ~4.5 mA. Reducing data rate by half cuts dynamic power roughly by 50%, useful for low-power states like sleep mode. However, aggressive throttling may disable adaptive features, forcing fixed equalization settings that reduce link margin. Designers must balance energy efficiency against reliability in battery-powered devices like laptops.
Can the TMDS1204RNQR interoperate with DisplayPort sources via adapter cables?
No, the TMDS1204RNQR is strictly HDMI sink-only and cannot process DisplayPort packets. While physical adapters exist between DP and HDMI, protocol conversion requires active electronics capable of translating packetized streams into TMDS format. Passive adapters fail because DP uses embedded clocking and packet framing incompatible with TMDS serial encoding. Therefore, connecting a DP source directly to the TMDS1204RNQR will result in no output or undefined behavior.
What steps are necessary to validate TMDS1204RNQR compliance with HDMI 2.1 specification requirements?
Compliance testing involves measuring key metrics such as RJ/DJ budgets, eye diagram masks, and CRTC (Channel Response Test) compliance using high-end oscilloscopes and BERT equipment. The TMDS1204RNQR datasheet provides reference values for these parameters under ideal conditions, but real-world validation must account for board parasitics and connector losses. TI offers evaluation modules (EVMs) with pre-characterized layouts to accelerate certification. Note that official HDMI Licensing Administrator testing remains mandatory for product branding claims.

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments TMDS1204RNQR

Product Attribute TMDS1204IRNQR TMDS1204IRNQT TMDS1204RNQT TMDS141RHARG4
Part Number TMDS1204IRNQR TMDS1204IRNQT TMDS1204RNQT TMDS141RHARG4
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Interface - - - -
Voltage - Supply - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Series - - - -
Applications - - - -
Mounting Type - Surface Mount Through Hole Surface Mount

TMDS1204RNQR Datasheet PDF

Download TMDS1204RNQR pdf datasheets and Texas Instruments documentation for TMDS1204RNQR - Texas Instruments.

Datasheets
TMDS1204.pdf

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Customer Reviews

Evaluation: 10 Articles

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

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Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
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TMDS1204RNQR Image

TMDS1204RNQR

Texas Instruments
98D-TMDS1204RNQR

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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