fsusb31 Fairchild Semiconductor, fsusb31 Datasheet

fsusb31

Manufacturer Part Number

fsusb31

Description

Fsusb31 Low-power 1-port Hi-speed Usb 2.0 480mbps Switch

Manufacturer

Fairchild Semiconductor

Datasheet

1.FSUSB31.pdf (15 pages)

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FSUSB31 Rev. 1.0.6

MicroPak™ is a trademark of Fairchild Semiconductor Corporation.

FSUSB31

Low-Power 1-Port Hi-Speed USB 2.0 (480Mbps) Switch

Features

■

Applications

■

Related Application Notes

■

Ordering Information

Pb-Free package per JEDEC J-STD-020B.

Application Diagram

FSUSB31K8X

FSUSB31L8X

Low On capacitance, 3.7pF (typical)

Low On resistance, 6.5Ω (typical)

Low power consumption (1µA maximum)

– 10µA maximum I

Wide -3dB bandwidth, > 720MHz

8K I/O to GND ESD protection

Power OFF protection when V

can tolerate up to 4.3V

Packaged in:

– Pb-Free 8-lead MicroPak™ (1.6 x 1.6mm)

– Pb-Free 8-lead US8

Cell phone, PDA, Digital Camera, and Notebook

LCD Monitor, TV, and Set-Top Box

AN-6022 Using the FSUSB30/31 to Comply with

USB 2.0 Fault Condition Requirements

Part Number

voltage range (V

CCT

Package

MAC08A

MAB08A

= 2.6V, V

over and expanded control

or FS USB

Base Band

Processor

Controller

= 4.3V)

= 0V, D+ / D- pins

Controller

HS USB

Figure 1. Typical Application Diagram

Pb-Free

Yes

FSUSB31

8-Lead US8, JEDEC MO-187, Variation CA 3.1mm Wide

Description

The FSUSB31 is a low-power, single-port, high-speed

USB 2.0 switch. This part is configured as a single pole,

single-throw switch and is optimized for switching or iso-

lating a high-speed (480Mbps) source or a high-speed

and full-speed (12Mbps) source. The FSUSB31 is com-

patible with the requirements of USB2.0 and features an

extremely low on capacitance (C

bandwidth of this device (>720MHz) exceeds the band-

width needed to pass the third harmonic, resulting in sig-

nals with minimum edge and phase distortion. Superior

channel-to-channel crosstalk minimizes interference.

The FSUSB31 contains special circuitry on the D+ / D-

pins that allows the device to withstand an over-voltage

condition. This device is also designed to minimize cur-

rent consumption even when the control voltage applied

to the OE pin is lower than the supply voltage (V

feature is especially valuable for ultra-portable applica-

tions such as cell phones, allowing for direct interface

with the general purpose I/Os of the baseband proces-

sor. Other applications include port isolation and switch-

ing in portable cell phones, PDAs, digital cameras,

printers, and notebook computers.

D+

D–

8-Lead MicroPak, 1.6mm Wide

Package Description

Connector

USB

) of 3.7pF. The wide

www.fairchildsemi.com

January 2007

). This

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