1

®

FN6556.0

ISL54212

MP3/USB 2.0 High Speed Switch with

Negative Signal Handling

The Intersil ISL54212 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 2.5V to 5.5V

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 ISL54212 logic control pins are 1.8V compatible which

allows for control via a standard µcontroller. The part has an

audio enable control pin to open all the switches and put the

part in a low power state.

The ISL54212 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) and Full Speed (12Mbps)

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 15mW into 32

Ω Load . . . . . . . . . . . . <0.06%

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

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

• Available in µTQFN and TDFN Packages

• Pb-Free (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

ISL54212

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

September 18, 2007

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. 2007. All Rights Reserved

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