1

USB 2.0 High-Speed x 2 Channels/Stereo Audio

Dual SP3T (Dual 3-to-1 Multiplexer)

ISL54217

The Intersil ISL54217 is a single supply dual SP3T

analog switch that operates from a single supply in the

range of 2.7V to 4.6V. It was designed to multiplex

between audio stereo signals and two different USB 2.0

high speed differential data signals. The audio channels

allow signal swings below ground, allowing the

multiplexing of voice and data signals through a

common headphone connector in Personal Media

Players and other portable battery powered devices.

The audio switch cells can pass ±1V ground referenced

audio signals with very low distortion (<0.03% THD+N

when driving 5mW into 32Ω loads). The USB switch

cells have very low ON-capacitance (8pF) and high

bandwidth to pass USB high speed signals (480Mbps)

with minimal edge and phase distortion.

The ISL54217 is available in a tiny 12 Ld

2.2mmx1.4mm ultra thin QFN and a 12 Ld 3mmx3mm

TQFN package. It operates over a temperature range of

-40°C to +85°C.

• 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 Audio

Switches

• Clickless/Popless Audio Switches

• Power OFF Protection

• COM Pins Overvoltage Tolerant to 5.5V

• Low Distortion Headphone Audio Signals

-THD+N at 5mW into 32Ω Load. . . . . . . <0.03%

• Crosstalk (100kHz). . . . . . . . . . . . . . . . . . -98dB

• OFF-Isolation (100kHz) . . . . . . . . . . . . . . 95.5dB

• -3dB Bandwidth USB Switches. . . . . . . . . 700MHz

• Available in Tiny 12 Ld µTQFN and TQFN Packages

• Compliant with USB 2.0 Short Circuit Requirements

Without Additional External Components

• Pb-Free (RoHS Compliant)

Applications*(see page 22)

• MP3 and other Personal Media Players

• Cellular/Mobile Phone

Application Block Diagram

CLICK/

ISL54217

USB

TRANSCEIVER

HIGH-SPEED

AUDIO

COM -

COM +

C1

GND

1D+

1D-

R

L

VDD

C0

LOGIC CONTROL

µCONTROLLER

CODEC

3.3V

2D-

USB

4MΩ

50kΩ

HIGH-SPEED

TRANSCEIVER

2D+

50kΩ

1kΩ

1kΩ

POP

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, 2009, 2010. All Rights Reserved

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

June 17, 2010

FN6817.4