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FSUSB31 fiches techniques PDF

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

Numéro de référence FSUSB31
Description Low-Power 1-Port Hi-Speed USB 2.0 (480Mbps) Switch
Fabricant Fairchild Semiconductor 
Logo Fairchild Semiconductor 





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FSUSB31 fiche technique
January 2007
FSUSB31
Low-Power 1-Port Hi-Speed USB 2.0 (480Mbps) Switch
Features
Low On capacitance, 3.7pF (typical)
Low On resistance, 6.5Ω (typical)
Low power consumption (1µA maximum)
– 10µA maximum ICCT over and expanded control
voltage range (VIN = 2.6V, VCC = 4.3V)
Wide -3dB bandwidth, > 720MHz
8K I/O to GND ESD protection
Power OFF protection when VCC = 0V, D+ / D- pins
can tolerate up to 4.3V
Packaged in:
– Pb-Free 8-lead MicroPak™ (1.6 x 1.6mm)
– Pb-Free 8-lead US8
Applications
Cell phone, PDA, Digital Camera, and Notebook
LCD Monitor, TV, and Set-Top Box
Related Application Notes
AN-6022 Using the FSUSB30/31 to Comply with
USB 2.0 Fault Condition Requirements
Ordering Information
Part Number Package
Pb-Free
FSUSB31K8X
MAB08A
Yes
FSUSB31L8X
MAC08A
Yes
Pb-Free package per JEDEC J-STD-020B.
Application Diagram
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 (CON) of 3.7pF. The wide
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 (VCC). This
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.
Package Description
8-Lead US8, JEDEC MO-187, Variation CA 3.1mm Wide
8-Lead MicroPak, 1.6mm Wide
VCC
Base Band
Processor
or FS USB
Controller
FSUSB31
D+
D–
USB
Connector
HS USB
Controller
OE
Figure 1. Typical Application Diagram
MicroPakis a trademark of Fairchild Semiconductor Corporation.
© 2006 Fairchild Semiconductor Corporation
FSUSB31 Rev. 1.0.6
www.fairchildsemi.com

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