Low Power, Two-Port, Hi-Speed USB2.0 (480Mbps) Switch
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General Description
The FSUSB40 is a bi-directional, low-power, two-port, Hi-Speed, USB2.0
switch. Configured as a double-pole, double-throw switch (DPDT) switch, it is
optimized for switching between two Hi-Speed (480Mbps) sources or a Hi-Speed and
Full-Speed (12Mbps) source. The FSUSB40 is compatible with the requirements
of USB2.0 and features an extremely low on capacitance (CON) of
5.5pF. 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 FSUSB40 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 SEL 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 generalpurpose I/Os of the baseband
processor. Other applications include switching and connector sharing in
portable cell phones, PDAs, digital cameras, printers, and notebook computers.
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Features
- Low On Capacitance, 5.9pF Typical
- Low On Resistance, 3.9W Typical
- Low Power Consumption: 1µA Maximum
- –15µA Maximum ICCT over and Expanded Control Voltage Range
(VIN= 1.8V, VCC= 4.3V)
- Wide -3dB bandwitch, > 720MHz
- Packaged in:
- – Pb-Free 10-lead MicroPak™(1.6 x 2.1mm)
- – Pb-free 10-lead UMLP (1.4 x 1.8mm)
- 8kV ESD protection, >16kV Power/GND ESD Rating.
- Power-Off Protection on All Ports when VCC= 0V
- D+/D- Pins Tolerate up to 5.25V
- OVT on D+, D-, up to 5.25V without External Resistance
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Applications
- Cell phone, PDA, Digital Camera, and Notebook
- LCD Monitor, TV, and Set-top Box
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