RX1P

RX1N

TX1N

TX1P

GND

RX

TX

ATXEN1

AIDLE1

ARXDET1

LOS

Rx

Detect

ALOSZ1

ARXTERM_EN1

RX2P

RX2N

TX2N

TX2P

GND

RX

TX

ATXEN2

AIDLE2

ARXDET2

LOS

Rx

Detect

ALOSZ2

ARXTERM_EN2

LFPS

ALFPS2

LFPS

ALFPS1

Digital

FSM

CFG1

CH1_EQ1

CH1_EQ2

DCBOOST#

EN

CFG2

CH2_EQ1

CH2_EQ2

MODE

RSVD1

14

TUSB1002A

SLLSF63 – MARCH 2018

www.ti.com

Product Folder Links: TUSB1002A

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Copyright © 2018, Texas Instruments Incorporated

7 Detailed Description

7.1 Overview

The TUSB1002A is the industry’s first, dual lane USB 3.2 x1 SuperSpeedPlus redriver. As signals traverse

through a channel (like FR4 trace) the amplitude of the signal is attenuated. The attenuation varies depending on

the frequency content of the signal. Depending the length of the channel this attenuation could be large enough

resulting in signal integrity issues at a USB 3.2 receiver. By placing a TUSB1002A between USB3.2 host and

device the attenuation effect of the channel can eliminated or minimized. The result is a USB3.2 compatible eye

at the devices receiver. With up to 16 receiver equalization settings, the TUSB1002A can support many different

channel loss combinations. The TUSB1002A offers low power consumption on a single 3.3 V supply with its ultra

low power architecture. It supports the USB3.2 low power modes which further reduces idle power consumption.

The TUSB1002A settings are configured through pins. In addition to equalization adjustment, the TUSB1002A

provides knobs for adjusting DC gain and voltage output linearity range.

7.2 Functional Block Diagram