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TMDS181

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6-Gbps HDMI 2.0 TMDS retimer

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Data sheet

TMDS181

ACTIVE
Data sheet Order now

Product details

Type Retimer Protocols HDMI Rating Catalog Speed (max) (Gbpp) 6 Number of channels 4 Supply voltage (V) 1.2, 3.3 Operating temperature range (°C) -40 to 85
Type Retimer Protocols HDMI Rating Catalog Speed (max) (Gbpp) 6 Number of channels 4 Supply voltage (V) 1.2, 3.3 Operating temperature range (°C) -40 to 85
VQFN (RGZ) 48 49 mm² 7 x 7
  • 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)
  • 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.

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.
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Technical documentation

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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
Not available on TI.com
Software programming tool

SLLC455 — EyeScan Tool

Supported products & hardware

Supported products & hardware

Products
HDMI, DisplayPort & MIPI ICs
  • SN65DP149 — 3.4-Gbps DP++ 1.1 to HDMI 1.4b retimer -40 to 85C operating temperature
  • SN65DP159 — 6-Gbps DP++ 1.1 to HDMI 2.0 retimer -40 to 85C operating temperature
  • SN75DP149 — 3.4-Gbps DP++ 1.1 to HDMI 1.4b retimer 0 to 70C operating temperature
  • SN75DP159 — 6-Gbps DP++ 1.1 to HDMI 2.0 retimer 0 to 85C operating temperature
  • TMDS171 — 3.4-Gbps HDMI 1.4b TMDS retimer
  • TMDS181 — 6-Gbps HDMI 2.0 TMDS retimer
Hardware development
Evaluation board
  • DP149RSBEVM — DP149 3.4 Gbps DP++ to HDMI Retimer Evaluation Module
  • DP159RGZEVM — DP159RGZEVM Evaluation Module
  • DP159RSBEVM — DP159RSBEVM Evaluation Module
  • TMDS171RGZEVM — TMDS171 3.4-Gbps TMDS retimer in the RGZ package evaluation module
  • TMDS181RGZEVM — TMDS181 6-Gbps TMDS retimer in the RGZ package evaluation module
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Simulation model

TMDS181 IBIS-AMI Model

SLAM293.ZIP (4807 KB) - IBIS-AMI Model
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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 (...)
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Simulation tool

TINA-TI — SPICE-based analog simulation program

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
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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 (...)
Design guide: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
VQFN (RGZ) 48 Ultra Librarian
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