july 2008 ? 2007 fairchild semiconductor corporation www.fairchildsemi.com FSUSB46 ? rev. 1.0.3 FSUSB46 ? hi-speed usb2.0 (480mbps) dpst switch with dedicated charger port detection click here for this datasheet translated into chinese! FSUSB46 ? hi-speed usb2.0 (480mbps) dpst switch with dedicated charger port detection features ? low on capacitance: 7.0pf typical ? low on resistance: 3.9 ? typical ? low power consumption: 1 a maximum - 15 a maximum i cct over an 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- pins tolerate up to 5.25v applications ? cell phone, pda, digital camera, and notebook ? lcd monitor, tv, and set-top box important note : for additional performance info rmation, please contact analogswitch@fairchildsemi.com . description 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 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 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. ordering information part number operating temperature range package eco status FSUSB46l8x -40 to +85c 8-lead micropak? 1.6mm wide rohs FSUSB46k8x -40 to +85c 8-lead us8, je dec mo187, variation ca 3.1mm green FSUSB46umx -40 to +85c 8-lead ultrathin molded leadless package (umlp), 1.2 x 1.4mm green for fairchild?s definition of ?green? eco status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html . micropak? is a trademark of fairchild semiconductor corporation. figure 1. analog symbol
? 2007 fairchild semiconductor corporation www.fairchildsemi.com FSUSB46 ? rev. 1.0.3 12 FSUSB46 ? hi-speed usb2.0 (480mbps) dpst switch with dedicated charger port detection
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