1

High-Speed USB 2.0 (480Mbps) Multiplexer

ISL54222A

The Intersil ISL54222A is a single supply dual 2:1

multiplexer that can operate from a single 1.8V to 3.3V

supply. It contains two SPDT (Single Pole/Double

Throw) switches configured as a DPDT. The part was

designed for switching or routing of USB High-Speed

signals and/or USB Full-speed signals in portable

battery powered products.

The 4.4Ω switches can swing rail-to-rail and were

specifically designed to pass USB full speed data signals

that range from 0V to 3.3V and USB high-speed data

signals that range from 0V to 400mV with a single

supply as low as 1.8V. They have high bandwidth and

low capacitance to pass USB high speed data signals

with minimal distortion.

The digital logic inputs are 1.8V logic compatible when

operated with a 1.8V to 3.3V supply. The ISL54222A

has an output enable pin to open all the switches and

put the part in a low power state.

The ISL54222A is available in 10 Ld 1.8mmx1.4mm

µTQFN, 10 Ld 2.1mmx1.6mm µTQFN, 10 Ld TDFN and

10 Ld MSOP packages. It operates over a temperature

range of -40° to +85°C.

Related Literature

• Technical Brief TB363 “Guidelines for Handling and

Processing Moisture Sensitive Surface Mount Devices

(SMDs)”

• Application Note AN1450 “ISL54222AIRUEVAL1Z

Evaluation Board User’s Manual”

Features

• High-Speed (480Mbps) and Full-Speed (12Mbps)

Signaling Capability per USB 2.0

• 1.8V Logic Compatible

• Low Power All Off State

• Power OFF Protection

• D-/D+ Pins Overvoltage Tolerant to 5.5V

• -3dB Frequency . . . . . . . . . . . . . . . . . . 780MHz

• Low ON Capacitance @ 240MHz . . . . . . . . . 4.2pF

• Available in µTQFN, TDFN, MSOP Packages

• Pb-Free (RoHS Compliant)

• Compliant with USB 2.0 Short Circuit and

Overvoltage Requirements Without Additional

External Components

• HBM ESD Performance I/O to GND . . . . . . >12kV

Applications*(see page 15)

• MP3 and other Personal Media Players

• Cellular/Mobile Phones

•PDA’s

• Digital Cameras and Camcorders

• USB Switching

Application Block Diagram

USB 2.0 HS Eye Pattern With

Switches In The Signal Path

ISL54222A

USB

TRANSCEIVER

HIGH-SPEED

D-

D+

SEL

GND

HSD1-

HSD1+

HSD2-

HSD2+

OE

LOGIC

µCONTROLLER

USB

TRANSCEIVER

FULL-SPEED

VBUS

D-

D+

GND

OR

FULL-SPEED

HIGH_SPEED

OR

PORTABLE MEDIA DEVICE

TIME SCALE (0.2ns/DIV)

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 1-888-468-3774

Copyright Intersil Americas Inc. 2009, 2010. All Rights Reserved

All other trademarks mentioned are the property of their respective owners.

February 4, 2010

FN6902.1