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HomeProductsIntegrated Circuits (ICs)Specialized ICsTMDS171RGZT
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TMDS171RGZT - Texas Instruments

Manufacturer Part Number
TMDS171RGZT
Manufacturer
Texas Instruments
Allelco Part Number
41D-TMDS171RGZT
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
6,100 pcs available, New & Original
Parts Description
VQFN-48(7x7)
Data sheet
-
Category
Integrated Circuits (ICs) > Specialized ICs
RoHs Status
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Our certification
In stock: 6100
  • Unit Price: $4.60
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $4.60 $4.60
10+ $4.091 $40.91
30+ $3.766 $112.98
100+ $3.451 $345.10
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

TMDS171RGZT Tech Specifications
Texas Instruments - TMDS171RGZT technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - TMDS171RGZT

Product Attribute Attribute Value
Part Number TMDS171RGZT
Package VQFN-48(7x7)
Description VQFN-48(7x7)
Stock Condition Get 6100 pcs available quantity at Allelco
Payment PayPal / TT / Credit Card / Western Union
Allelco Certifications ESD / ISO 9001 / ISO 13485 / ISO 28000
Product Attribute Attribute Value
Manufacturer Texas Instruments
RoHs Status -
Warranty 100% Perfect Functions
Transport port Hong Kong
Shipping by DHL / FedEx / UPS / TNT / SF Express
RFQ Email info@allelco.com

Parts Introduction

TMDS171RGZT Image
TMDS171RGZT (1)

Manufacturer Part Number

TMDS171RGZT

Manufacturer

Texas Instruments

Introduction

The TMDS171RGZT is a high-performance, low-power HDMI retimer from Texas Instruments. It is designed to extend the transmission distance of HDMI signals by amplifying and reshaping the signal, ensuring reliable data transfer and high-quality video and audio delivery.

Product Features and Performance

Supports HDMI 2.0 and HDCP 2.2 standards

Provides a maximum data rate of 18 Gbps

Operates on a supply voltage of 3.135V to 3.465V

Integrated ESD protection on all pins

Low power consumption of typically 80 mW

Product Advantages

Extends HDMI signal transmission distance

Maintains signal integrity and prevents signal degradation

Enables reliable and high-quality video and audio delivery

Compact and space-efficient design with a 48-VFQFN package

Key Reasons to Choose This Product

Robust HDMI signal conditioning for extended reach

Seamless integration into HDMI-enabled devices

Optimized power efficiency for low-power applications

Proven reliability and performance from a trusted brand

Quality and Safety Features

Meets HDMI 2.0 and HDCP 2.2 standards

Incorporates advanced ESD protection for improved reliability

Rigorous quality control and testing processes

Compatibility

Designed for use in a wide range of HDMI-enabled devices, including TVs, displays, set-top boxes, and home theater systems

Application Areas

HDMI signal extension and conditioning in consumer electronics, home entertainment systems, and professional AV applications

Product Lifecycle

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Frequently Asked Questions(FAQ)

How does the TMDS171RGZT handle signal integrity in high-speed HDMI applications, and what are the key design considerations when integrating it into a system?
The TMDS171RGZT is engineered as a retimer specifically for HDMI signals, operating within a supply voltage range of 3.135V to 3.465V. Its primary function is to regenerate and reshape high-speed serial data streams, compensating for channel loss, jitter, and timing skew commonly encountered over long cables or through PCB traces. When integrating this component, designers must ensure proper power sequencing and stable decoupling near the VCC pins to maintain signal fidelity. The device supports I2C configuration, allowing fine-tuning of equalization and de-emphasis settings based on link conditions—this flexibility enables optimization for different cable lengths and environmental noise profiles.
What distinguishes the TMDS171RGZT from other retimer ICs in terms of power consumption and thermal behavior during sustained data transmission?
The TMDS171RGZT exhibits relatively low quiescent current due to its optimized CMOS architecture and efficient clock recovery loop. Under typical operation at 3.3V supply and full-speed HDMI data rates (up to 6 Gbps per lane), it draws approximately 20–30 mA depending on active channel loading and configuration settings. Compared to alternative retimers with fixed analog front-end designs, the TMDS171 offers dynamic power management through programmable output swing control, which reduces thermal dissipation in shorter-cable scenarios. This makes it suitable for compact consumer electronics where space and heat are constrained.
Can the TMDS171RGZT be used with DisplayPort signals, and if so, what modifications or limitations would apply?
No, the TMDS171RGZT is not compatible with DisplayPort signals. It is designed exclusively for HDMI-compliant TMDS (Transition Minimized Differential Signaling) channels. While both interfaces use similar differential signaling, DisplayPort employs packetized data encoding and different scrambling mechanisms that the TMDS171 cannot interpret. Attempting to use this device with DisplayPort would result in complete signal failure. For DisplayPort re-timing applications, a dedicated DP retimer such as TI’s DPL171 or similar must be selected instead.
How does the TMDS171RGZT support hot-plug detection and EDID communication in end-system designs?
The TMDS171RGZT integrates standard HDMI hot-plug detection (HPD) functionality, monitoring the HPD pin to determine connection status with a downstream display. Upon detecting a valid HPD pulse, it enables internal receivers and initiates link training sequences. For Extended Display Identification Data (EDID) access, the device relies on an external microcontroller communicating via the I2C interface to read and relay EDID information back to the source. The TMDS171 itself does not store EDID; rather, it facilitates I²C transactions between the host and an attached EEPROM or MCU managing display capabilities.
What layout precautions are essential when placing the TMDS171RGZT on a PCB to preserve signal integrity?
Given its role in high-speed serial data recovery, the TMDS171RGZT demands careful PCB layout to avoid EMI and crosstalk. All differential pairs—especially the incoming TMDS channels—should be routed with controlled impedance (typically 100 Ω differential), matched length, and minimal vias. The 48-VQFN package includes an exposed pad requiring solid thermal and grounding connections; this pad should be soldered directly to a ground plane using multiple vias to ensure low inductance return paths and effective heat dissipation. Keep I2C lines short and separate from high-speed nets to prevent coupling-induced noise.
In what scenarios might the TMDS171RGZT outperform a passive HDMI repeater solution?
The TMDS171RGZT provides superior performance over passive repeaters in environments with significant channel attenuation, intersymbol interference, or clock recovery challenges. Unlike passive devices that simply amplify weak signals—risking noise amplification—the TMDS171 actively regenerates clean digital waveforms by reconstructing the clock and reshaping data edges. This active regeneration allows reliable operation over longer cables (beyond 10 meters) where passive solutions fail. Additionally, its adaptive equalization helps maintain eye diagram quality under variable cable conditions, making it ideal for professional AV systems, medical imaging displays, and extended desktop setups.
Does the TMDS171RGZT require external reference clocks, and how does its internal PLL affect system synchronization?
The TMDS171RGZT does not require an external reference clock. Instead, it incorporates a highly integrated phase-locked loop (PLL) that recovers the embedded clock from the incoming TMDS data stream. This self-synchronous design simplifies board layout by eliminating the need for precise clock distribution networks. However, the PLL bandwidth and loop filter components must be carefully chosen during design-in to balance jitter tolerance against lock time and stability across varying data patterns. Misconfiguration can lead to excessive phase noise or failure to acquire lock under poor signal conditions.
What impact does operating temperature have on the performance reliability of the TMDS171RGZT?
The TMDS171RGZT is specified over an industrial temperature range, typically from -40°C to +85°C, ensuring robust operation in harsh environments. Within this range, critical parameters such as input sensitivity, jitter tolerance, and output timing margins remain within datasheet-defined limits. At elevated temperatures, slight increases in power consumption may occur, but the device maintains stable signal regeneration. Designers should still ensure adequate airflow or thermal relief for prolonged high-load operation, especially when driving multiple TMDS lanes simultaneously.
How does the TMDS171RGZT compare to the TMDS170RGZT in terms of feature set and application suitability?
The TMDS171RGZT offers enhanced features compared to the TMDS170RGZT, including higher data rate support (up to 6 Gbps vs. 3.4 Gbps), improved jitter tolerance, and more flexible I²C-programmable controls for equalization and pre-emphasis. The TMDS170 is limited to single-link HDMI 1.4b applications, whereas the TMDS171 targets HDMI 2.0a-ready environments, supporting 4K@60Hz content. Both share the same 48-pin QFN package and basic architecture, but the TMDS171’s broader bandwidth and configurability make it preferable for next-generation multimedia systems requiring future-proof connectivity.
Are there any known interoperability issues between the TMDS171RGZT and certain HDMI sink devices, and how can they be mitigated?
Interoperability issues are rare but can arise from mismatched HDMI version support or non-standard signaling behaviors in legacy sink devices. The TMDS171RGZT follows standard HDMI electrical specifications and protocol expectations, but some older displays may exhibit unusual HPD timing or EDID formatting. To mitigate such cases, firmware running on the host controller can implement retry logic for link training, fallback modes (e.g., reducing color depth or resolution), and manual EDID override options. Additionally, enabling conservative equalization settings during initial bring-up often resolves handshake failures without compromising performance.
What role does the I2C interface play in customizing the TMDS171RGZT for specific cable and connector configurations?
The I2C interface enables real-time adjustment of internal parameters such as receiver equalization, transmitter de-emphasis, and output drive strength. These settings directly influence signal integrity over different cable types (standard, high-speed, ultra-high-speed). For example, longer cables benefit from increased equalization and de-emphasis, while shorter links may require reduced settings to minimize overshoot. By sampling channel response (e.g., via BER testing or eye monitor feedback), a system can dynamically tune these values using I2C commands, optimizing performance across diverse deployment scenarios without hardware changes.

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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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Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
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.
Contact us if you have any questions.
  • QC (Quality Warranty)
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Allelco is committed to exceeding customer expectations through customer service excellence, order accuracy, and on-time delivery.
This is achieved through our commitment to the continual improvement of our processes, services, and products.


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Electrostatic Discharge Protection and Handling

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TMDS171RGZT Image

TMDS171RGZT

Texas Instruments
41D-TMDS171RGZT

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

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