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LX7203-XX Datasheet(PDF) 1 Page - Microsemi Corporation |
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LX7203-XX Datasheet(HTML) 1 Page - Microsemi Corporation |
1 / 7 page LX7203-xx PRODUCTION DATA SHEET Microsemi Integrated Products Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 1 EMI Filter & ESD Protection for Up Stream USB Ports Copyright 2002 Rev. 1.0a, 2002-10-22 I N T E GR A T ED PRO DUC T S DESCRIPTION The LX7203 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 upstream port. The USB v1.1 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 1.5 kΩ pull-up resistor identifies the appropriate data line for full speed or low speed operation. The 47 pF capacitor completes the high frequency filter and controls the edge rate of the USB signals The LX7203 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 LX7203 minimizes board space and allows for ideal placement near the connector. The LX7203 is ideal for use in USB hubs, peripherals and portable appliances IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com PACKAGE ORDER INFO TJ (°C) SM Plastic 6-Pin SC70 Package Marking Tape & Reel Quantity (Reel Size) -40 to 125 LX7203-15ISM 315 -40 to 125 LX7203-22ISM 322 3K (7inches) Note: Append the letter “T” to the part number For Tape & Reel Ordering KEY FEATUR ES Small SC70-6L Package Bi-directional EMI/RFI low-pass filter Line termination with integrated ESD protection Low TVS operating voltage (5.25V) Low leakage current Integrated single die construction Crosses From Semtech STF203 APPLI C ATION S USB Ports Peripherals Computers and Printers Mobile phones Pagers and PDA’s Digital Cameras BENEFITS Filter response characterized up to 6 GHz <2dB insertion loss in the pass band >20dB attenuation in the 800- 900 MHz range >12dB attenuation in the WLAN frequencies of 2.4GHz and 5.0- 6.0 GHz PRODUCT H I GHLIGHT Rs Rs D out to IC V BUS C EDGE 1.5K D in from connector 2 5 D in from connector D out to IC C EDGE Circuit Diagram 16 5 4 3 2 V BUS D IN from connector D OUT to IC GND D IN from connector D OUT to IC R S C R S C R PU ? Functional Schematic with PinOut |
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