1 Features

• AEC-Q100 qualified for automotive applications

– Temperature: –40°C to 105°C, TA

• USB Type-C® crosspoint switch supporting

– USB 3.2 + 2 DisplayPort™ Lanes

– 4 DisplayPort™ Lanes

• USB 3.2 x1 up to 10Gbps

• VESA® DisplayPort™ 2.1 up to 10Gbps

• 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 800mVpp up

to 1100mVpp

– TX pre-shoot and de-emphasis

• Ultra-low-power architecture

• Up to 12dB equalization at 5.0GHz

• Transparent to DisplayPort™ link training

• Configuration through GPIO or I2C

• Hot-plug capable

• 5mm × 7mm, 0.5mm pitch VQFN package

2 Applications

• Rear seat entertainment

• Automotive head unit

• Automotive infotainment and cluster

3 Description

The TUSB1146-Q1 is a VESA® DisplayPort™ Alt

Mode over USB Type-C® redriving switch that

supports USB 3.2 data rates up to 10Gbps and

DisplayPort™ 2.1 up to 10Gbps for downstream

facing port (host). The device is used for

configurations C, D, and E from the VESA®

DisplayPort™ Alt Mode over 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-Q1 also incorporates an adaptive

receiver equalization (AEQ) feature that can

automatically find the best ISI compensation setting

between the USB device and the TUSB1146-Q1.

The AEQ finds the best setting to help improve the

interoperability between a USB host and USB device.

The TUSB1146-Q1 operates on a single 3.3V supply

and comes in an Automotive Grade 2 temperature

range.