TUSB1064 datasheet(17/52 Pages) TI

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7 Detailed Description

7.1 Overview

The TUSB1064-Q1 is a VESA USB Type-C Alt Mode redriving switch that supports data rates up to 8.1Gbps for

upstream facing port. This device uses 5th generation USB redriver technology. The device is used for UFP pin

assignments C and D from the VESA DisplayPort Alt Mode on USB Type-C Standard.

The TUSB1064-Q1 provides several levels of receive equalization to compensate for cable and board trace loss

which if not equalized causes inter-symbol interference (ISI) when USB 3.2 or DisplayPort 1.4 signals travel

across a PCB or cable. This device requires a 3.3V power supply. The device comes in an automotive grade 2

temperature range.

For a sink application, the TUSB1064-Q1 enables the system to pass both transmitter compliance and receiver

jitter tolerance tests for USB 3.2 up to 10Gbps and DisplayPort version 1.4 HBR3. The redriver recovers

incoming data by applying equalization that compensates for channel loss, and drives out signals with a high

differential voltage. Each channel has a receiver equalizer with selectable gain settings. Set the equalization

based on the amount of insertion loss in the channels connected to the TUSB1064-Q1 . Independent

equalization control for each channel can be set using EQ[1:0], SSEQ[1:0], and DPEQ[1:0] pins.

The TUSB1064-Q1 advanced state machine makes the device transparent to hosts and devices. After power up,

the TUSB1064-Q1 periodically performs receiver detection on the TX pairs. If the TUSB1064-Q1 detects a USB

3.2 receiver, the RX termination is enabled, and the TUSB1064-Q1 is ready to re-drive.

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TUSB1064-Q1

SLLSFP0 – SEPTEMBER 2024

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TUSB1064 Datasheet(PDF) 17 Page - Texas Instruments