Specification	FSUSB31L8X

-3db Bandwidth	720 MHz
Applications	USB
Features	Break-Before-Make, USB 2.0
Mounting Type	Surface Mount
Multiplexer/Demultiplexer Circuit	2:1
Number of Channels	1
On-State Resistance (Max) [Max]	10 Ohms
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Package / Case	8-UFQFN
Supplier Device Package	8-MicroPak™
Switch Circuit	DPST
Voltage - Supply, Single (V+) [Max]	4.3 V
Voltage - Supply, Single (V+) [Min]	3 V

FSUSB31 Series

Low Power Dual SPST Hi-Speed USB 2.0 (480 Mbps) Switch

Part	Features	Package / Case [y]	Package / Case	Package / Case [y]	Number of Channels	Supplier Device Package	Mounting Type	Voltage - Supply, Single (V+) [Max]	Voltage - Supply, Single (V+) [Min]	Multiplexer/Demultiplexer Circuit	Operating Temperature [Max]	Operating Temperature [Min]	Switch Circuit	-3db Bandwidth	On-State Resistance (Max) [Max]	Applications
ON Semiconductor FSUSB31K8X	Break-Before-Make USB 2.0	2.3 mm	8-VFSOP	0.091 in	1	US8	Surface Mount	4.3 V	3 V	2:1	85 °C	-40 °C	DPST	720 MHz	10 Ohms	USB
ON Semiconductor FSUSB31UMX	Break-Before-Make USB 2.0		8-UFQFN		1	8-UMLP (1.2x1.4)	Surface Mount	4.3 V	3 V	2:1	85 °C	-40 °C	DPST	720 MHz	10 Ohms	USB
ON Semiconductor FSUSB31K8X	Break-Before-Make USB 2.0	2.3 mm	8-VFSOP	0.091 in	1	US8	Surface Mount	4.3 V	3 V	2:1	85 °C	-40 °C	DPST	720 MHz	10 Ohms	USB
ON Semiconductor FSUSB31L8X	Break-Before-Make USB 2.0		8-UFQFN		1	8-MicroPak™	Surface Mount	4.3 V	3 V	2:1	85 °C	-40 °C	DPST	720 MHz	10 Ohms	USB

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Bulk	764	$ 0.39

Description

General part information

FSUSB31 Series

The FSUSB31 is a low-power, single-port, high-speed USB 2.0 switch. This part is configured as a double-pole, single-throw switch and is optimized for switching or isolating a high-speed (480Mbps) source or a high-speed and full-speed (12Mbps) source. The FSUSB31 is compatible 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 bandwidth needed to pass the third harmonic, resulting in signals 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 current consumption even when the control voltage applied to the /OE pin is lower than the supply voltage (VCC). This feature is especially valuable for mobile applications, such as cell phones, allowing direct interface with the general-purpose I/Os of the baseband processor. Other applications include port isolation and switching in portable cell phones, PDAs, digital cameras, printers, and notebook computers.