IC7220M000SGM7227+USB高速切换开关.pdf

SGM7227 High Speed USB 2.0 (480Mbps) DPDT Analog Switch GENERAL DESCRIPTION FEATURES The SGM7227 is a high-speed, low-power double-pole/ RON is Typically 5Ω at 3.0V double-throw (DPDT) analog switch that operates from a Voltage Operation: 1.8V to 4.3V single 1.8V to 4.3V power supply. Fast Switching Times: tON 15ns SGM7227 is designed for the switching of high-speed tOFF 20ns USB 2.0 signals in handset and consumer applications, Crosstalk: -30dB at 250MHz such as cell phones, digital cameras, and notebooks with Off-Isolation: -35dB at 250MHz hubs or controllers with limited USB I/Os. Rail-to-Rail Input and Output Operation Break-Before-Make Switching The SGM7227 has low bit-to-bit skew and high Extended Industrial Temperature Range: channel-to-channel noise isolation, and is compatible with -40℃ to +85℃ various standards, such as high-speed USB 2.0 (480 Available in Green UTQFN1.8×1.4-10L and Mbps). Each switch is bidirectional and offers little or no MSOP10 Packages attenuation of the high-speed signals at the outputs. Its bandwidth is wide enough to pass high-speed USB 2.0 differential signals (480 Mb/s) with good signal integrity. BLOCK DIAGRAM The SGM7227 contains special circuitry on the D+/D- pins which allows the device to withstand a VBUS short to HSD1+ D+ or D- when the US