1 Features

• AC-coupled or DC-coupled input and output

supporting HDMI 2.1 data rates up to 12 Gbps

– Backwards compatible to HDMI 1.4b and HDMI

2.0b

– HDMI 2.1 fixed rate link (FRL) of 3, 6, 8, 10,

and 12 Gbps

– Supports HDMI 2.1 three and four lane FRL

• Optimized for HDMI source applications

• Programmable receiver equalizer up to 12 dB at 6

GHz

• I2C or pin strap programmable

• Integrated HPD level shifter supporting both 1.8-V

and 3.3-V LVCMOS levels

• Integrated DDC buffer supporting as low as 1.2-V

levels

• Full lane swap on main lanes

• Digital display control (DDC) snooping function for

link configuration

• Low power consumption:

– 12G FRL four lanes active limited: 575 mW

– 12 G FRL four lanes active linear: 220 mW

– Powerdown: 0.6 mW

• Available in commercial and industrial temperature

• Single 3.3-V power supply

• 40-pin, 0.4 mm pitch, 4 mm × 6 mm, WQFN

package

2 Applications

• Notebooks and desktops

• TV

• Home theater and entertainment

• Gaming systems

• Docking stations

• Pro audio, video, and signage

3 Description

The TDP1204 is an HDMI 2.1 redriver supporting

data rates up to 12 Gbps. It is backwards compatible

for HDMI 1.4b and HDMI 2.0b. The high-speed

differential inputs and outputs can either be ACcoupled

or DC-coupled, which qualifies the TDP1204

to be used as a DP++ to HDMI level shifter or HDMI

redriver. The TDP1204 can support both 3 and 4 lane

HDMI 2.1 FRL at 3, 6, 8, 10, and 12-Gbps.

The TDP1204 is a hybrid redriver supporting both

source and sink applications. A hybrid redriver can

operate either in a linear or limited redriver function.

When configured as a limited redriver, the TDP1204

differential output voltage levels are independent

of the graphics process unit (GPU) output levels

ensuring HDMI compliant levels at the receptacle.

The limited redriver mode is recommended for HDMI

source applications. When configured as a linear

redriver, the TDP1204 differential output levels are

a linear function of the GPU output levels enabling

TDP1204 to be transparent to link training and

operate as a channel shortener. Linear redriver mode

is recommended for HDMI sink applications.

The TDP1204 has an integrated HPD level shifter.

The HPD level shifter will shift the 5-V HPD signal

to either 1.8-V or 3.3-V. The level shifter output can

also be configured for push, pull, or open-drain. Also

integrated in the TDP1204 is a Digital Display Control

(DDC) buffer. The DDC buffer offers capacitance

isolation and level shifters 5-V DDC levels to 3.3-V,

1.8-V, or 1.2-V levels. The integration of the level

shifter eliminates discrete solutions and thereby saves

system cost.

The TDP1204 supports single power supply rails

of 3.3-V on VCC and is offered in a commercial

temperature (TDP1204) and industrial temperature

(TDP1204I).