TUSB522P 3.3 V Dual-Channel USB 3.1 GEN 1 Redriver, Equalizer

1 Features

• USB3.1 GEN1 5Gbps, dual-channel re-driver with

3.3-V power supply

• Ultra-low-power architecture:

– Active: 98 mA

– U2, U3: 1.2 mA

– Disconnect 265 µA

– Shutdown 60 µA

• Optimal receiver equalization:

– of 3, 6, 9 dB at 2.5 GHz

• Output driver de-emphasis of 0, 3.5, and 6 dB

• Automatic LFPS de-emphasis control to meet USB

3.1 certification requirements

• No host or device-side requirement

• Hot-plug capable

• Industrial temperature range: –40°C to 85°C

TUSB522PI

• Commercial temperature range: 0°C to 70°C

TUSB522P

2 Applications

• Cell phones

• Tablets

• Notebooks

• Desktops

• Docking stations

• Backplanes and active cables

3 Description

The TUSB522P is a fourth generation, dual-channel,

single-lane USB 3.1 GEN1 redriver and signal

conditioner supporting 5Gbps. The device offers low

power consumption on a 3.3 V supply with its ultra-

low-power architecture. The redriver also supports the

USB 3.1 low power modes, which further reduces idle

power consumption.

The dual-channel capability enables the system

to maintain signal integrity on both transmit and

receive data paths. The receiver equalization has

three gain settings to overcome channel degradation

from insertion loss and inter-symbol interference.

These settings are controlled from the EQ pins.

To compensate for transmission line losses, the

output driver supports configuration of De-Emphasis

with pins DE. Additionally, automatic LFPS De-

Emphasis control allows for full USB 3.1 compliance.

These settings allow optimal performance, increased

signaling distance, and flexibility in placement of the

TUSB522P in the USB 3.1 GEN1 path.

Device Information

PART NUMBER

TEMPERATURE

PACKAGE(1)

TUSB522P

TA = 0°C to 70°C

RGE (VQFN, 24)

TUSB522PI

TA = -40°C to 85°C

(1)

For all available packages, see the orderable addendum at

the end of the data sheet.

20"

Redriver

USB Host

USB

Connector

20"

1"-6"

Main PCB

Main PCB

Redriver

USB Host

Device

Device PCB

Connector

3m USB

3.0 Cable

Receiver/

Equalizer

Driver

EQ

CNTRL

LFPS

CONTROLLER

DEMP

CNTRL

Driver

Receiver/

Equalizer

Detect

OS

Cntrl.

Detect

EN_RXD

CHANNEL 1

CHANNEL 2

RX1P

RX1N

EQ1

EQ2

DE1

DE2

TX1P

TX1N

RX2P

RX2N

TX2N

TX2N

OS1

OS2

Copyright © 2016, Texas Instruments Incorporated

Simplified Schematic

TUSB522P

SLLSEV9E – JULY 2016 – REVISED NOVEMBER 2023

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.