PI3EQX7742AIEVB - Pericom - Product.Network

New Product Databrief

www.pericom.com | 1-408-435-0800

Block Diagram

PI3EQX7742

5.0 Gbps, 2-port, (4-Channel) USB 3.0 ReDriver™ with Digital Conguration

External

Storage Device

USB 3.0 Cable

USB 3.0

ReDriver

Figure1

XI+

CML

Limiting

Amp

Equalizer

Signal Detection

Power

Management

- Repeated 2 times -

XI –

XO+

XO –

EQ_x

Features

• USB 3.0 compatible

• Four 5.0 Gbps differential signal pairs

• Adjustable Receiver Equalization

• 100ΩDifferentialCMLI/O’s

• PinConfiguredOutputEmphasisControl

• Inputsignalleveldetectandsquelchforeachchannel

• AutomaticReceiverDetectwithdigitalenable/disable

• LowPower~680mW

• Auto "Slumber" mode for adaptive power management

• Stand-byMode–PowerDownState

• Single Supply Voltage: 3.3V

• Packaging:42-ContactTQFN(3.5x9mm)

Pericom Semiconductor’sPI3EQX7742isa lowpower,high

performance5.0GbpssignalReDriver™designedspecifically

fortheUSB3.0protocol.Thedeviceprovidesprogrammable

equalization, De-Emphasis, and input threshold controls to

optimizeperformanceoveravarietyofphysicalmediumsby

reducingInter-SymbolInterference.PI3EQX7742supportsfour

100ΩDifferentialCMLdataI/O’sbetweentheProtocolASICto

aswitchfabric,overcable,ortoextendthesignalsacrossother

distantdatapathwaysontheuser’splatform.Theintegrated

equalizationcircuitryprovidesflexibilitywithsignalintegrityof

thesignalbeforetheReDriver.Alow-levelinputsignaldetection

and output squelch function is provided for each channel.

Eachchanneloperatesfullyindependently.Whenthechannels

areenabledEN_x#=0andoperating,thatchannels’input

signallevel(onxI+/-)determineswhethertheoutputisactive.

Iftheinputsignal levelofthechannelfalls belowtheactive

thresholdlevel(Vth-)thentheoutputsaredriventothecommon

modevoltage.Inadditiontosignalconditioning,whenEN_x#=1,

thedeviceentersalowpowerstandbymode.ThePI3EQX7742

also includes a fully programmable receiver detect function.

WhentheRxDetpinispulledhigh,automaticreceiverdetection

willbeactive.Thedevicewillthenmovetopowerdowndue

to inactivity.