1 Features

1• USB Type-C crosspoint switch supporting

– USB 3.2 SSP + 2 DisplayPort Lanes

– 4 DisplayPort Lanes

• USB 3.2 x1 Gen 1/Gen 2 up to 10 Gbps

• VESA®DisplayPort 2.0 up to 10 Gbps (UHBR10)

• Supports D_DFP pin assignments C, D, and E

• Choice between adaptive or fixed equalization for

USB DFP receivers.

• Linear and limited redriver supported on UFP

transmitter

• Limited redriver option offers both TX voltage

swing and TX equalization control

– 4 Levels of TX voltage swing from 800 mVpp

up to 1100 mVpp

– TX pre-shoot and de-emphasis

• Ultra-low-power architecture

• Up to 12 dB equalization at 5 GHz

• Transparent to DisplayPort link training

• Configuration through GPIO or I2C

• Intel proprietary DCI capability on USB Type-C for

closed chassis debugging

• Hot-Plug capable

• Industrial temperature range: –40 ºC to 85 ºC

(TUSB1146I)

• Commercial temperature range: 0 ºC to 70 ºC

(TUSB1146)

• 4 mm x 6 mm, 0.4 mm Pitch WQFN package

2 Applications

• Notebooks and desktops

• Tablets

• Docking Stations

3 Description

The TUSB1146 is a VESA USB Type-C™ Alt Mode

redriving switch supporting USB 3.2 data rates up to

10 Gbps and DisplayPort 2.0 up to 10 Gbps for

downstream facing port (Host). The device is used for

configurations C, D, and E from the VESA

DisplayPort Alt Mode on USB Type-C standard. This

protocol-agnostic linear redriver is also capable of

supporting other USB Type-C Alt Mode interfaces

such as HDMI Alt Mode.

The TUSB1146 incorporates an innovative, adaptive

receiver equalization (AEQ) feature. The AEQ feature

will automatically find the best ISI compensation

setting between the USB device and the TUSB1146.

Because the AEQ finds the best setting,

interoperability between a USB Host and USB Device

is vastly improved. The TUSB1146 operates on a

single 3.3-V supply and comes in a commercial

temperature range and industrial temperature range.