Datasheet > ISL54205EVAL1Z

ISL54205EVAL1Z

更新时间： 2024-11-24 04:41:27

品牌	Logo	应用领域
英特矽尔 - INTERSIL		开关
页数	文件大小	规格书
14页	357K
描述
MP3/USB 2.0 High Speed Switch with Negative Signal Handling

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ISL54205EVAL1Z 数据手册

ISL54205A

Data Sheet

December 7, 2006

FN6342.1

MP3/USB 2.0 High Speed Switch with

Negative Signal Handling

Features

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

• Low Distortion Negative Signal Capability

The Intersil ISL54205A 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.

• Detection of V

BUS

Voltage on USB Cable

• Control Pin to Open all Switches and Enter Low Power

State

• Low Distortion Headphone Audio Signals

- THD+N at 20mW into 32Ω Load . . . . . . . . . . . . . <0.1%

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

The ISL54205A incorporates circuitry for detection of the USB

voltage, which is used to switch between the audio and

• Single Supply Operation (V ) . . . . . . . . . . . . 2.7V to 3.6V

BUS

USB signal sources in the portable device. The part has a

control pin to open all the switches and put the part in a low

power down state.

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

• Available in μTQFN and TDFN Packages

• Pb-Free Plus Anneal (RoHS Compliant)

The ISL54205A is available in a small 10 Ld 2.1mm x 1.6mm

ultra-thin μTQFN package and a 10Ld 3mm x 3mm TDFN

package. It operates over a temperature range of -40 to

+85°C.

• Compliant with USB 2.0 Short Circuit Requirements

Without Additional External Components

Applications

Related Literature

• Application Note AN1280 “ISL54205EVAL1Z Evaluation

Board User’s Manual.

• MP3 and Other Personal Media Players

• Cellular/Mobile Phones

• PDA’s

• Technical Brief TB363 “Guidelines for Handling and

Processing Moisture Sensitive Surface Mount Devices

(SMDs)”

• Audio/USB Switching

• Application Note AN557 “Recommended Test Procedures

for Analog Switches”

Application Block Diagram

μCONTROLLER

ISL54205A

BUS

CTRL

Logic Circuitry

22kΩ

USB

4MΩ

HIGH-SPEED

D-

COM -

COM +

TRANSCEIVER

D+

50kΩ

CODEC

GND

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

1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.

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

12 3 4 5 6 7...14

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