RX+

RX-

TX+

TX-

3

State Machine

LFPS

Controller

VCC

GND

EQ

Driver

Receiver/

Equalizer

DE

OS

TUSB501

www.ti.com

SLLSEG5A – AUGUST 2013 – REVISED AUGUST 2013

USB 3.0 Single Channel Redriver with Equalization

Check for Samples: TUSB501

1

FEATURES

DESCRIPTION

2

•

Aggressive Low-Power Architecture (Typ):

single-channel redriver. When 5 Gbps SuperSpeed

–

126 mW Active Power

USB signals travel across a PCB or cable, signal

–

20 mW in U2/U3

integrity degrades due to loss and inter-symbol

interference. The TUSB501 recovers incoming data

–

3 mW with No Connection

by applying equalization that compensates channel

•

Automatic LFPS DE Control

loss, and drives out signals with a high differential

•

Excellent Jitter and Loss Compensation

voltage. This extends the possible channel length,

and enables systems to pass USB 3.0 compliance.

–

32 inches of FR4 4 mil Stripline

The TUSB501 advanced state machine makes it

–

3 m of 30 AWG cable

transparent to hosts and devices.

•

Integrated Termination

After power up, the TUSB501 periodically performs

•

Small 2 x 2 mm QFN Package

receiver detection on the TX pair. If it detects a

•

Selectable Receiver Equalization, Transmitter

SuperSpeed USB receiver, RX termination becomes

De-Emphasis and Output Swing

enabled, and the TUSB501 is ready to redrive.

•

Hot-Plug Capable

The receiver equalizer has three gain settings that

•

ESD Protection ±5 kV HBM

are controlled by pin EQ: 3 dB, 6 dB, and 9 dB. This

should be set based on amount of loss before the

TUSB501.

Likewise,

the

output

driver

supports

APPLICATIONS

configuration of De-Emphasis and Output Swing (pins

•

Cell Phones, Computers, Docking Stations,

DE and OS). These settings allow the TUSB501 to be

TVs, Active Cables, Backplanes

flexibly placed in the SuperSpeed USB path, with

optimal performance.

Over previous generations, the TUSB501 features

reduced power in all link states, a stronger OS option,

improved receiver equalization settings, and an

intelligent LFPS Controller. This controller senses the

low frequency signals and automatically disables

driver de-emphasis, for full USB 3.0 compliance.

The TUSB501 is packaged in a small 2 x 2 mm QFN,

and operates through an industrial temperature range

of –40°C to 85°C.

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2013, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.