The LX7201 is an integrated Universal Serial Bus (USB) line termination device with an EMI filter and ESD protection diodes. This device offers a cost effective and compact solution for one USB downstream port. The USB specification requires line termination resistors on both the D+ and D- lines. These resistors ensure signal integrity by matching the cable impedance to that of the differential driver. The 15KΩ pull-down resistors identify the line as a downstream connection. The 47 pF capacitor completes the high frequency filter and controls the edge rate of the USB signals. The LX7201 protects both D+ and D- data lines and the voltage bus from ESD. The TVS protection diodes exceed the requirements of IEC61000-4-2, level 4, 15kV (air discharge) and 8kV (contact discharge). The integrated configuration of the LX7201 minimizes board space and allows for ideal placement near the connector. The LX7201 is ideal for use in USB hubs, peripherals and portable appliances.
The Microsemi LX7201-xx is an integrated Universal Serial Bus (USB) line termination device designed for downstream USB ports. It combines a bi-directional EMI/RFI low-pass filter, line termination resistors, and ESD protection diodes into a single 6-pin SOT-23 package. This compact solution is intended to minimize board space and allow ideal placement near the connector for USB hubs, peripherals, and portable appliances.
| Series Resistance (15k) | 15 Ohms |
|---|---|
| Series Resistance (22k) | 22 Ohms |
| Capacitor Cc | 47 pF |
| Total Capacitance | 66 pF |
| Package Type | 6-Pin SOT23 |
The device meets the requirements of the USB v1.1 and USB 2.0 Full Speed specification.
It is ideal for use in USB hubs, peripherals, printers, monitors, servers, desktops, notebook computers, and digital cameras.