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.