July 2008

© 2007 Fairchild Semiconductor Corporation

www.fairchildsemi.com

FSUSB45 • Rev. 1.0.5

FSUSB45 — Hi-Speed USB2.0 (480Mbps) Switch with

Dedicated Charger Port Detect

Features

Low On Capacitance: 7.0pF Typical

Low On Resistance: 3.9Ω Typical

Low Power Consumption: 1μA Maximum

-

Wide -3db Bandwidth: > 720MHz

Packaged in:

-

10-Lead MicroPak™ (1.6 x 2.1mm)

-

10-Lead UMLP (1.4 x 1.8mm)

8kV ESD Rating, >16kV Power/GND ESD Rating

-

D+/D- Pins Tolerate up to 5.25V

Applications

Cell Phone, PDA, Digital Camera, and Notebook

LCD Monitor, TV, and Set-top Box

IMPORTANT NOTE:

For additional performance information, please contact

Description

The FSUSB45 is a bi-directional, low-power, two-port,

Hi-Speed, USB2.0 switch. Configured as a double-pole,

double-throw (DPDT) switch, it is optimized for

switching between two Hi-Speed (480Mbps) sources or

a Hi-Speed source and a Full-Speed (12Mbps) source.

The FSUSB45 is compatible with the requirements of

USB2.0 and features an extremely low on capacitance

(720MHz) exceeds the bandwidth needed to pass the

third harmonic, resulting in signals with minimum edge

and phase distortion. Superior channel-to-channel

crosstalk also minimizes interference.

The FSUSB45 contains special circuitry on the switch

withstand an over-voltage condition. This device is

designed to minimize current consumption even when

the control voltage applied to the SEL pin is lower than

valuable to mobile applications, such as cell phones,

allowing for direct interface with the general-purpose

I/Os of the baseband processor. An additional feature is

the detection of the 1,1 state on D+/D- to signal an

interrupt (INT) to the processor when entering a

dedicated charging port mode of operation.

Figure 1. Analog Symbol

Ordering Information

Part Number

Top

Mark

Operating

Temperature Range

Eco Status

Package

FSUSB45L10X

JA

-40 to +85°C

RoHS

10-Lead MicroPak™ 1.6 x 2.1mm,

JEDEC MO-255B

FSUSB45UMX

JB

-40 to +85°C

Green

10-Lead, Quad, Ultrathin Molded Leadless

Package (UMLP), 1.4 x 1.8mm

MicroPak™ is a trademark of Fairchild Semiconductor Corporation.