What is FSUSB46?

This electronic component, produced by the manufacturer "Fairchild Semiconductor", performs the same function as "USB2.0 (480Mbps) Switch".

FSUSB46 Datasheet PDF - Fairchild Semiconductor

Part Number FSUSB46
Description USB2.0 (480Mbps) Switch
Manufacturers Fairchild Semiconductor 
Logo Fairchild Semiconductor Logo 

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translated into Chinese!
July 2008
FSUSB46 — Hi-Speed USB2.0 (480Mbps) DPST Switch
with Dedicated Charger Port Detection
ƒ Low On Capacitance: 7.0pF Typical
ƒ Low On Resistance: 3.9Typical
ƒ Low Power Consumption: 1μA Maximum
- 15μA Maximum ICCT over an Expanded Voltage
Range (VIN=1.8V, VCC=4.3V)
ƒ Wide -3db Bandwidth: > 720MHz
ƒ Packaged in Pb-free, 8-Lead MicroPak™ (1.6mm
wide), US8 (3.1mm wide), and UMLP (1.4x1.4mm)
ƒ 8kV ESD Rating, >16kV Power/GND ESD Rating
ƒ Power-Off Protection on All Ports When VCC=0V
- D+/D- Pins Tolerate up to 5.25V
ƒ Cell phone, PDA, Digital Camera, and Notebook
ƒ LCD Monitor, TV, and Set-Top Box
For additional performance information, please contact
The FSUSB46 is a bi-directional, low-power, Hi-Speed,
USB2.0 switch. Configured as a double-pole, single-
throw switch (DPST) switch, it is optimized for switching
a Hi-Speed (480Mbps) source.
The FSUSB46 is compatible with the requirements of
USB2.0 and features an extremely low on capacitance
(CON) of 3.9pF. 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 also minimizes interference.
The FSUSB46 contains special circuitry on the switch
I/O pins for applications where the VCC supply is
powered-off (VCC=0), which allows the device to
withstand an over-voltage condition. This device is
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 to ultra-portable 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 (high/high) state on
D+/D- to signal an interrupt (INT) to the processor when
entering a dedicated charging port mode of operation.
Ordering Information
Part Number
Temperature Range
-40 to +85°C
-40 to +85°C
-40 to +85°C
8-Lead MicroPak™ 1.6mm Wide
8-Lead US8, JEDEC MO187, Variation CA 3.1mm
8-Lead Ultrathin Molded Leadless Package (UMLP),
1.2 x 1.4mm
Eco Status
For Fairchild’s definition of “green” Eco Status, please visit:
MicroPak™ is a trademark of Fairchild Semiconductor Corporation.
© 2007 Fairchild Semiconductor Corporation
FSUSB46 • Rev. 1.0.3
Figure 1. Analog Symbol

Part Details

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