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.