november 2009 ? 2007 fairchild semiconductor corporation www.fairchildsemi.com FSA110 rev. 1.0.2 FSA110 ? audio and wired-or usb2.0 hi-speed switch with negative signal capability and built-in termination click to see this datasheet in simplified chinese! FSA110 ? audio and wired-or usb2.0 hi-speed (480mbps) switch with nega tive signal capability and built-in termination features ? 6pf typical switch off capacitance for hs usb ? 2.5 ? typical on resistance for audio signaling ? negative-swing-capable audio channel ? automatic usb detection available ? power-off protection on the d+/r, d-/l ports ? flow-through pin out eliminates pcb vias ? built-in termination on unselected audio paths inhibits audio pop applications ? cell phone, pda, digital camera, and notebook ? lcd monitor, tv, and set-top box description the FSA110 is a double-pole, single throw (dpst) switch that combines a low-distortion audio path with low off capacitance for usb applications. this configuration is ideal for wired-or configurations, enabling shared usb2.0 hi-speed (hs) and audio on a single connector. the architecture is designed to allow audio signals to swing below ground so a common usb and headphone jack can be used for personal media players and portable peripheral devices. the FSA110 is configured for default usb transfer, which gives the user control of when the audio path is enabled. the audio path defaults to audio mute and is enabled with /oe. the FSA110 includes a power-off feature on the common port when v cc =0v to guarantee signal isolation. important note: for additional performance information, please contact analogswitch@fairchildsemi.com . ordering information part number top mark eco status package description FSA110k8x a110 green 8-lead us8, jedec mo-187, variation ca, 3.0mm wide package FSA110umx gz green 10-lead quad, ultrathin mlp, 1.4 x 1.8mm for fairchild?s definition of eco status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html v cc /oe r l d+/r d-/l control block rpu r t r t figure 1. analog symbol
? 2007 fairchild semiconductor corporation www.fairchildsemi.com FSA110 rev. 1.0.2 12 FSA110 ? audio and wired-or usb2.0 hi-speed switch with negative signal capability and built-in termination
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