July 2012

© 2010 Fairchild Semiconductor Corporation

www.fairchildsemi.com

FSUSB63 • Rev. 1.0.4

FSUSB63 — 3:1 High-Speed USB 2.0 Switch / Multiplexer

Features

Switch Type

3:1 USB Switch

USB

USB 2.0 High-Speed &

Full-Speed Compliant

Break-Before-Make Time

126µs

6Ω Typical

6pF Typical

Bandwidth

830MHz

2.7 to 4.4V

Operating Temperature

-40°C to 85°C

<1µA

7.5µA Typical

Package

12- Lead UMLP 1.80 x 1.80 x

0.55mm, 0.40mm pitch

Top Mark

KG

Ordering Information

FSUSB63UMX

Applications

Description

The FSUSB63 is a bi-directional, low-power, High-Speed

(HS) USB 2.0 3:1 Multiplexer (MUX). It is optimized for

switching among three high-speed (480Mbps) sources or

any combination of high-speed and full-speed (12Mbps)

USB sources, such as an application processor, to one USB

2.0 connector.

The FSUSB63 has a break-before-make time to force re-

enumeration by the host when switching between different

HS USB 2.0 controllers and thus requires minimal software

changes.

The FSUSB63 is compliant with the requirements of USB 2.0

bandwidth exceeds the requirement to pass the third

harmonic, resulting in signals with minimum edge and phase

distortion.

Superior

channel-to-channel

crosstalk

also

minimizes interference.

Related Resources

Typical Application

Figure 1. Analog Symbol