The TMDS181x is a digital video interface (DVI) or high-definition multimedia interface (HDMI™) retimer. The TMDS181x supports four TMDS channels, audio return channel (SPDIF_IN/ARC_OUT), and digital display control (DDC) interfaces. The TMDS181x supports signaling rates up to 6 Gbps to allow for the highest resolutions of 4k2k60p 24 bits per pixel and up to WUXGA 16-bit color depth or 1080p with higher refresh rates. The TMDS181x can be configured to support the HDMI2.0a standard. The TMDS181x automatically configures itself as a redriver at low data rate (<1.0 Gbps) or as a retimer above this data rate. Redriver mode supports HDMI1.4b with data rates up to 3.4 Gbps
The TMDS181x supports dual power supply rails of 1.2 V on VDD and 3.3 V on VCC for power reduction. Several methods of power management are implemented to reduce overall power consumption. TMDS181x supports fixed receive EQ gain or adaptive receive EQ control by I2C or pin strap to compensate for different lengths input cable or board traces.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | TMDS181x 6 Gbps TMDS Retimer datasheet (Rev. D) | PDF | HTML | Sep 12, 2017 |
| Application note | High-Speed Layout Guidelines for Signal Conditioners and USB Hubs (Rev. A) | PDF | HTML | Jan 8, 2026 | |
| Application note | TMDS181 and TMDS171 Configuration Guide | Dec 13, 2019 | ||
| Application note | TMDS181 Schematic Checklist | Apr 3, 2019 | ||
| User guide | Pattern Verifier and Generator User's Guide | Apr 27, 2018 | ||
| Technical article | How to select a redriver or retimer for HDMI 2.0 jitter cleansing | PDF | HTML | May 1, 2017 | |
| Technical article | How to select the right retimer for HDMI 2.0 applications | PDF | HTML | Sep 27, 2016 | |
| Technical article | How to reduce jitter and improve signal integrity in source and sink system design | PDF | HTML | Jul 11, 2016 | |
| Technical article | HDMI 2.0: How to generate cleaner signals over long traces, connectors and cables | PDF | HTML | Jun 21, 2016 | |
| White paper | Build a true fidelity system using video signal conditioners | Jun 9, 2016 |
For additional terms or required resources, click any title below to view the detail page where available.
This reference design is to show two distinct ways to protect the TMDS lines of a HDMI 2.0 drivers and retimers from electrostatic discharge (ESD). The HDMI standard is used in many applications from set-topboxes to notebooks to TV's. Since these ports are almost always external they are (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| VQFN (RGZ) | 48 | Ultra Librarian |
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.