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Home Products Integrated Circuits (ICs)Interface - Specialized~~TMDS1204RNQT~~

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TMDS1204RNQT - Texas Instruments

Manufacturer Part Number: TMDS1204RNQT

Manufacturer: Texas Instruments

Allelco Part Number: 98D-TMDS1204RNQT

Warranty: 1 Year Allelco Warranty - Find out more

Stock Status:: 31,540 pcs available, New & Original

Parts Description: 12-GBPS HDMI 2.1 SINK REDRIVER

Package: 40-WQFN (6x4)

Data sheet: TMDS1204RNQT.pdf

Datasheets
TMDS1204.pdf

RoHs Status

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In stock: 31540

Unit Price: $5.97
Subtotal: $0.00

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Quantity	Unit Price	Ext. Price
1+	$5.97	$5.97

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Specifications

TMDS1204RNQT Tech Specifications
Texas Instruments - TMDS1204RNQT technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - TMDS1204RNQT

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 TMDS1204RNQT handle signal integrity at 12 Gbps data rates in HDMI 2.1 sink applications, and what design considerations are critical for maintaining reliable video transmission?: The TMDS1204RNQT is engineered to support HDMI 2.1 sink functionality with up to 12 Gbps per channel, enabling high-bandwidth display interfaces such as 8K@60Hz or 4K@120Hz. At these elevated data rates, signal attenuation, crosstalk, and timing skew become dominant concerns. Designers must ensure controlled impedance routing (typically 100 Ω differential) on the PCB, minimize trace length mismatches within ±5 mils across all three TMDS lanes, and maintain adequate return loss budgets—especially above 6 GHz. Additionally, proper power supply decoupling near the IC’s VCC pins reduces high-frequency noise that could degrade eye diagram performance. Thermal management is also important; while the device operates over a wide junction temperature range, sustained high-speed operation may require careful layout to avoid localized heating in the 6x4 mm WQFN package.

What voltage supply conditions can the TMDS1204RNQT reliably operate under, and how should system designers account for voltage tolerances in end-product certification?: The TMDS1204RNQT supports a nominal supply voltage range of 3.135 V to 3.6 V, with absolute maximum ratings extending slightly lower to 3 V under transient conditions. This aligns with standard 3.3 V logic systems but allows for minor rail droop during power-up or load transients. In practical implementations—such as notebook PCs or TVs—designers must ensure that the core logic rails do not dip below 3.0 V for more than a few microseconds without risking functional instability. During HDMI compliance testing, voltage sag scenarios are often simulated to verify robust operation. Therefore, it's advisable to include bulk capacitance close to the device and use low-ESR ceramic capacitors rated for the full operating voltage range to stabilize the supply under dynamic loads.

Can the TMDS1204RNQT be used in automotive-grade video interface designs, and what limitations exist regarding environmental robustness or qualification status?: While the TMDS1204RNQT functions effectively in consumer and industrial video applications like desktop PCs and TVs, it is not qualified for automotive environments. Its Moisture Sensitivity Level (MSL) is 1, indicating unlimited floor life under dry storage, which suits typical assembly workflows, but this does not imply immunity to thermal cycling, humidity exposure, or mechanical stress common in automotive systems. Furthermore, the RoHS status is listed as "Not applicable," suggesting potential restrictions on certain hazardous substances that may affect global market access, particularly in regions enforcing strict environmental standards. Automotive designers requiring similar redriver functionality should seek alternative parts explicitly qualified to AEC-Q100 or equivalent reliability standards.

How does the TMDS1204RNQT compare to other HDMI redrivers like the THine THG3S104 or Parade PS194 when optimizing for power efficiency in battery-powered notebooks?: When comparing the TMDS1204RNEQ to devices such as the THine THG3S104 or Parade PS194, the TMDS1204RNQT typically exhibits higher quiescent current due to its integrated features like I²C control and advanced equalization—beneficial for signal recovery but less optimal for ultra-low-power designs. For example, the TMDS1204RNQT consumes approximately 15–20 mA at full speed under typical 3.3 V operation, whereas some newer Parade solutions offer sleep modes drawing under 1 mA. However, the TI part provides superior built-in jitter tolerance and automatic de-emphasis adjustment without external components, reducing BOM count. Thus, trade-offs exist between power budget and design simplicity: if minimal external circuitry and high signal integrity are priorities, the TMDS1204RNQT remains competitive despite modestly higher static power consumption.

What role does the I²C interface play in configuring the TMDS1204RNQT, and what configuration flexibility does it offer beyond basic enable/disable functions?: The TMDS1204RNQT includes an I²C-compatible serial interface that enables fine-grained control over internal settings such as output pre-emphasis, de-emphasis levels, and EQ gain. This allows system firmware to adapt the redriver behavior dynamically based on cable length, connector type, or detected EDID information from the display. For instance, longer cables may trigger increased de-emphasis via I²C writes to improve signal rise times. Additionally, registers can monitor internal status flags like link training success or fault detection. This configurability enhances interoperability across diverse HDMI sinks and supports automated calibration routines in mass production environments, though it introduces dependency on host MCU availability during initialization sequences.

Is it possible to cascade multiple TMDS1204RNQT devices to extend reach beyond 15 meters over passive HDMI cables, and what challenges arise in doing so?: Cascading multiple TMDS1204RNQT redrivers is technically feasible but not recommended for standard HDMI 2.1 implementations. Each redriver adds insertion loss, group delay variation, and jitter accumulation, which can degrade the eye opening at the receiver end. Moreover, HDMI specification mandates a maximum of one active redriver per link unless using certified repeaters compliant with CTS 1.4b/2.0. Even if bypassed electrically, timing alignment across cascaded stages becomes difficult due to differing propagation delays. Practical tests show diminishing returns beyond two stages at 12 Gbps, with bit error rates rising sharply due to intersymbol interference. Therefore, single-device solutions remain preferable unless specialized repeater architectures are employed and validated through full CTS testing.

How does the TMDS1204RNQT perform in terms of electromagnetic compatibility (EMC), and what layout practices help mitigate radiated emissions in dense system designs?: The TMDS1204RNQT itself does not directly cause EMC issues, but its high-speed differential outputs generate significant conducted and radiated emissions above 3 GHz. To minimize impact, designers should route TMDS traces as tightly coupled, length-matched pairs with consistent spacing, avoid right angles, and keep them away from clock oscillators or switching regulators. Ground stitching vias should surround the 40-pin WQFN package to reduce loop area and suppress common-mode noise. Shielding cans may be considered for final enclosures in sensitive applications. Compliance testing often reveals peaks near harmonics of the pixel clock frequency, necessitating careful filtering or spread-spectrum techniques upstream if regulatory thresholds are tight.

What are the key differences between the TMDS1204RNQT and earlier-generation redrivers like the TFP410 when driving long HDMI cables, and why might a designer choose one over the other?: Compared to legacy redrivers such as the TFP410, the TMDS1204RNQT offers significant advancements in bandwidth (up to 12 Gbps vs. ~3.4 Gbps), integrated I²C configuration, and adaptive equalization—critical for modern HDMI 2.1 links over long cables. The TFP410 lacks built-in EQ and requires discrete components for compensation, increasing board space and tuning complexity. The TMDS1204RNQT also supports higher data rates natively, eliminating the need for oversampling or rate conversion. However, the older part remains suitable for HDMI 1.4 applications where cost and simplicity outweigh performance requirements. Choosing between them depends on target resolution, cable length, and whether future-proofing against HDMI 2.1 adoption justifies the incremental BOM cost and design overhead of the newer TI solution.

How does the TMDS1204RNQT handle hot-plug detection and EDID communication in real-world systems, and what pitfalls should engineers avoid during integration?: The TMDS1204RNQT does not directly manage hot-plug detection (HPD) or EDID readback; instead, these functions are typically handled by the source SoC or a dedicated HPD controller. However, the redriver must remain stable during HPD transitions to prevent link resets or glitches. Engineers should ensure that power sequencing keeps the TMDS1204RNQT powered even during HPD assertion/deassertion to avoid brownout-induced resets. Additionally, I²C pull-ups must be strong enough to support both the redriver’s internal registers and any downstream EDID EEPROM. A common mistake is placing pull-ups too far from the TMDS1204RNQT, causing rise-time violations during EDID reads. Proper isolation between HPD signal paths and noisy power rails further prevents false triggers.

Can the TMDS1204RNQT be safely operated with supply voltages outside the specified 3.135–3.6 V range, and what risks emerge if transient spikes occur?: Operating the TMDS1204RNQT outside its recommended 3.135–3.6 V range—even briefly—risks damaging internal ESD protection diodes or latch-up structures. Transient spikes above 3.6 V can forward-bias parasitic junctions, leading to excessive current flow and potential thermal runaway. Similarly, sustained operation below 3.0 V may corrupt internal state machines, causing undefined redriver behavior or failure to lock onto incoming data patterns. In ruggedized systems exposed to voltage surges (e.g., USB-C docks with PD negotiation), transient voltage suppressors (TVS diodes) should be placed immediately at the input pins with low clamping voltage and fast response. Always adhere to the datasheet’s absolute maximum ratings to preserve device longevity and reliability.

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments TMDS1204RNQT

Product Attribute
Part Number	TMDS1204IRNQT	TMDS1204RNQR	TMDS1204IRNQR	TMDS171IRGZT
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Package / Case	-	196-LFBGA	16-DIP (0.300', 7.62mm)	64-VFQFN Exposed Pad
Applications	-	-	-	-
Voltage - Supply	-	-	-	-
Package	-	Tape & Reel (TR)	Tube	Tape & Reel (TR)
Mounting Type	-	Surface Mount	Through Hole	Surface Mount
Supplier Device Package	-	196-NFBGA (12x12)	16-PDIP	64-VQFN (9x9)
Series	-	-	-	-
Interface	-	-	-	-

TMDS1204RNQT Datasheet PDF

Download TMDS1204RNQT pdf datasheets and Texas Instruments documentation for TMDS1204RNQT - 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
America	Brazil	7
Europe	Germany	5
	United Kingdom	4
	Italy	5
Oceania	Australia	6
Oceania	New Zealand	5
Asia	India	4
Asia	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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TMDS1204RNQT

Texas Instruments
98D-TMDS1204RNQT

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

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