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 (C_ON) of 7.0pF. 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 V_CC supply is powered-off (V_CC=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 (V_CC). 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.

• Low On Capacitance, 7.0pF Typical
• Low On Resistance, 3.9W Typical
• Low Power Consumption: 1µA Maximum
• –15µA Maximum I_CCT over and Expanded Voltage Range (V_IN= 1.8V, V_CC= 4.3V)
• Wide -3dB bandwidth: > 720MHz
• Packaged in Pb-free, 8-Lead MicroPak™ (1.6mm wide), US8 (3.1mm wide), and UMLP (1.4x1.4mm)
• 8kV ESD rating, >16kV Power/GND ESD Rating
• Power-Off Protection on All Ports when V_CC= 0V
• D+/D- Pin Tolerate up to 5.25V

• Cell Phone, PDA, Digital Camera, and Notebook
• LCD Monitor, TV, and Set-top Box