FSA201 datasheet(2/21 Pages) ONSEMI

2 / 21 page

June 2012

www.fairchildsemi.com

FSA201 Rev. 1.2.2

FSA201 — USB2.0 Full-Speed and Audio Switches

with Negative Signal Capability

Features

 3Ω Typical ON Resistance

 -3db Bandwidth: > 250MHz

 Low Power Consumption

 Packaged in Pb-free 10-pin MSOP and

10-Lead MicroPak™ (1.6 x 2.1mm)

 Power-off Protection on Common D+/R, D-/L Ports

 Automatically Detects V

BUS for Switch Path

Selection

Applications

 Cell Phone, PDA, Digital Camera, and Notebook

 LCD Monitor, TV, and Set-Top Box

Description

The FSA201 is a Double-Pole, Double Throw (DPDT)

multiplexer that combines a low-distortion audio and a

USB2.0 Full-Speed (FS) switch path. This configuration

enables audio and USB data to share a common

connector port. The architecture is designed to allow

audio signals to swing below ground. This means a common

USB and headphone jack can be used for personal media

players and similar portable peripheral devices.

Since USB2.0 is an industry standard for shared data-

path in portable devices, the FSA201 also incorporates

a VBUS detection capability. The FSA201 includes a

power-off feature to minimize current consumption when

VBUS is not present. This power-off circuitry is available

for

the

common

D+/R,

D-/L

ports

only.

Typical

applications

involve

switching

portables

and

consumer applications, such as cell phones, digital

cameras, and notebooks with hubs or controllers.

Ordering Information

Part Number

Package Number

Packing Description

FSA201L10X

MAC010A

10-Lead MicroPak, JEDEC MO-255, 1.6 x 2.1mm

FSA201MUX

MUA10A

10-Lead MSOP, JEDEC MO-187, 3.0mm Wide

Vbus

Vaudio

Switch Select

Control Circuitry

D+/R

D-/L

D+

D-

ASel

Rpd

GND

Figure 1.

FSA201 Analog Symbol

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