1

®

FN6409.0

ISL54206

MP3/USB 2.0 High Speed Switch with

Negative Signal Handling

The Intersil ISL54206 dual SPDT (Single Pole/Double

Throw) switches combine low distortion audio and accurate

USB 2.0 high speed data (480Mbps) signal switching in the

same low voltage device. When operated with a 2.7V to 3.6V

single supply these analog switches allow audio signal

swings below-ground, allowing the use of a common USB

and audio headphone connector in Personal Media Players

and other portable battery powered devices.

The ISL54206 logic control pins are 1.8V compatible which

allows for control via a standard µcontroller. With a VDD

voltage in the range of 2.7V to 3.6V the IN pin voltage can

exceed the VDD rail allowing for the USB 5V VBUS voltage

from a computer to directly drive the IN pin to switch

between the audio and USB signal sources in the portable

device. The part has an audio enable control pin to open all

the switches and put the part in a low power state.

The ISL54206 is available in a small 10 Ld 2.1mmx1.6mm

ultra-thin µTQFN package and a 10 Ld 3mmx3mm TDFN

package. 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 AN557 “Recommended Test Procedures

for Analog Switches”

Features

• High Speed (480Mbps) Signaling Capability per USB 2.0

• Low Distortion Negative Signal Capability

• Control Pin to Open all Switches and Enter Low Power

State

• Low Distortion Headphone Audio Signals

- THD+N at 20mW into 32

Ω Load . . . . . . . . . . . . . <0.1%

• Cross-talk Audio Channels (20Hz to 20kHz) . . . . . -110dB

• -3dB Bandwidth USB Switches . . . . . . . . . . . . . . . 630MHz

• Available in µTQFN and TDFN Packages

• Pb-Free Plus Anneal (RoHS Compliant)

• Compliant with USB 2.0 Short Circuit Requirements

Without Additional External Components

Applications

• MP3 and Other Personal Media Players

• Cellular/Mobile Phones

•PDA’s

• Audio/USB Switching

Application Block Diagram

ISL54206

USB

TRANSCEIVER

HIGH-SPEED

CODEC

COM-

COM+

IN

GND

D-

D+

L

R

CTRL

µCONTROLLER

4M

Ω

50k

Ω

50k

Ω

VBUS

LOGIC CIRCUITRY

Data Sheet

December 18, 2006

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. 2006. All Rights Reserved

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