1 Features

1• 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)

2 Applications

• Digital TV

• Digital Projector

• Audio/Video Equipment

• Blu-ray™ DVD

• Monitors

• Desktops/ All-in-Ones

• Active Cables

3 Description

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.