Software programming tool
Data sheet
TMDS181
- HDMI™ Input Port to Output Port With CDR Supporting Up to 6 Gbps Data Rates
- Compatible With HDMI™ Electrical Parameters Up to 6 Gbps in Retimer Mode
- Support 4k2k60p and Up to WUXGA 16-Bit Color Depth or 1080p With Higher Refresh Rates
- Retimes Input Stream to Compensate for Random Jitter
- Adaptive Receiver Equalizer or Programmable Fixed Equalizer
- I2C and Pin Strap Programmable
- Inter-Pair Skew Compensation of 5+ Bits
- Single-Ended Mode ARC Support
- Link Debug Tools Including Eye Diagram After the RX Equalizer
- 48-Pin 7-mm × 7-mm 0.5-mm Pitch VQFN Package
- Extended Commercial Temperature Support 0°C to 85°C (TMDS181)
- Industrial Temperature Support: –40°C to 85°C (TMDS181I)
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.
Technical documentation
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View all 10 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | TMDS181x 6 Gbps TMDS Retimer datasheet (Rev. D) | PDF | HTML | 12 Sep 2017 |
| Application note | High-Speed Layout Guidelines for Signal Conditioners and USB Hubs (Rev. A) | PDF | HTML | 08 Jan 2026 | |
| Application note | TMDS181 and TMDS171 Configuration Guide | 13 Dec 2019 | ||
| Application note | TMDS181 Schematic Checklist | 03 Apr 2019 | ||
| User guide | Pattern Verifier and Generator User's Guide | 27 Apr 2018 | ||
| Technical article | How to select a redriver or retimer for HDMI 2.0 jitter cleansing | PDF | HTML | 01 May 2017 | |
| Technical article | How to select the right retimer for HDMI 2.0 applications | PDF | HTML | 27 Sep 2016 | |
| Technical article | How to reduce jitter and improve signal integrity in source and sink system design | PDF | HTML | 11 Jul 2016 | |
| Technical article | HDMI 2.0: How to generate cleaner signals over long traces, connectors and cables | PDF | HTML | 21 Jun 2016 | |
| White paper | Build a true fidelity system using video signal conditioners | 09 Jun 2016 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
Evaluation board
TMDS181RGZEVM — TMDS181 6-Gbps TMDS retimer in the RGZ package evaluation module
The TMDS181RGZEVM is a PCB created to help customers evaluate the TMDS181 device for video applications with HDMI interfaces.
User guide: PDF
Simulation tool
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Simulation tool
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TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
User guide: PDF
Reference designs
TIDA-050001 — HDMI 2.0 ESD Protection Reference Design
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 |
Ordering & quality
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