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

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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.

TUSB522P

SLLSEV9A – JULY 2016 – REVISED OCTOBER 2016

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

1

1 Features

1

•

USB3.1 GEN1 5 Gbps, 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/Device-Side Requirement

•

Hot-Plug Capable

•

Industrial Temperature Range: –40ºC to 85ºC

TUSB522PI

•

Commercial Temperature Range: 0ºC to 70ºC

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 5 Gbps. 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(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TUSB522P

VQFN (24)

4.00 mm x 4.00 mm

TUSB522PI

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

SPACER

Simplified Schematic