1

®

FN6815.0

ISL54215

MP3/USB 2.0 High Speed Switch with

Negative Signal Handling and Low Power

Shutdown

The Intersil ISL54215 dual SPDT (Single Pole/Double Throw)

switch combines 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 5.0V single

supply, this analog switch allows audio signal swings below

ground, allowing for the use of a common USB and audio

headphone connector in Personal Media Players and other

portable battery powered devices.

The ISL54215 logic control pins are 1.8V compatible, which

allows for control via a standard microcontroller.

The ISL54215 has an audio enable control pin to open all

switches and put the part in a low power state. In this state,

the device draws typically 1nA of current.

The ISL54215 is available in a small 10 Ld 2.1mmx1.6mm

ultra-thin µTQFN package. It operates over a temperature

range of -40°C to +85°C.

Related Literature

• Technical Brief TB363 “Guidelines for Handling and

Processing Moisture Sensitive Surface Mount Devices

(SMDs)”

Features

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

Signaling Capability per USB 2.0

• Low Distortion Negative Signal Capability

• Low Power Shutdown State

• Low Distortion Headphone Audio Signals

- THD+N at 1mW into 32

Ω Load . . . . . . . . . . . . <0.013%

• Crosstalk (100kHz) . . . . . . . . . . . . . . . . . . . . . . . . . -95dB

• OFF-Isolation (100kHz) . . . . . . . . . . . . . . . . . . . . . . 95dB

• -3dB Bandwidth USB Switch . . . . . . . . . . . . . . . . . 736MHz

• Available in µTQFN Package

• Compliant with USB 2.0 Short Circuit Requirements

Without Additional External Components

• Pb-Free (RoHS Compliant)

Applications

• MP3 and other Personal Media Players

• Cellular/Mobile Phones

•PDAs

• Audio/USB Switching

Application Block Diagram

ISL54215

USB

TRANSCEIVER

HIGH-SPEED

AUDIO

COM -

COM +

IN

GND

D-

D+

R

L

VDD

CTRL

LOGIC CONTROL

µCONTROLLER

4M

Ω

CODEC

3.3V

4M

Ω

Data Sheet

November 25, 2008

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. 2008. All Rights Reserved

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