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.