LX7201 Datasheet, PDF (1/6 Pages) Microsemi Corporation – EMI Filter & ESD Protection for Down Stream USB Ports

INTEGRATED PRODUCTS
LX7201-xx
EMI Filter & ESD Protection for Down Stream
USB Ports
PRODUCTION DATA SHEET
DESCRIPTION
The LX7201 is an integrated The 47 pF capacitor completes the
Universal Serial Bus (USB) line high frequency filter and controls the
termination device with an EMI filter edge rate of the USB signals. The
and ESD protection diodes. This LX7201 protects both D+ and D- data
device offers a cost effective and lines and the voltage bus from ESD.
compact solution for one USB The TVS protection diodes exceed the
downstream port.
The USB requirements of IEC61000-4-2, level 4,
specification requires line termination 15kV (air discharge) and 8kV (contact
resistors on both the D+ and D- lines. discharge). The integrated configuration
These resistors ensure signal integrity of the LX7201 minimizes board space
by matching the cable impedance to and allows for ideal placement near the
that of the differential driver. The connector. The LX7201 is ideal for use
15KΩ pull-down resistors identify the in USB hubs, peripherals and portable
line as a downstream connection.
appliances.
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
T_J (°C)
-40 to 125
-40 to 125
PACKAGE ORDER INFO
Plastic
Package Tape & Reel Quantity
SF _{6-Pin SOT23 Marking (Reel Size)}
LX7201-15ISF
115
LX7201-22ISF
122
3K (7inches)
Note: Append the letter “T” to the part number
For Tape & Reel Ordering
KEY FEATURES
ƒ Bi-directional EMI/RFI Low-Pass
Filter
ƒ Line Termination with Integrated
ESD Protection
ƒ Low TVS Operating Voltage
(5.25V)
ƒ Low Leakage Current
ƒ Integrated Single Die
Construction
ƒ Available With 15 or 22Ω Series
Resistance
ƒ Crosses from Semtech STF201
APPLICATIONS
ƒ USB 1.1 and USB 2.0 Full
Speed Compliant
ƒ Peripherals
ƒ Printers
ƒ Monitors
ƒ Servers, Desktops and
Notebook Computers
ƒ Digital Cameras
BENEFITS
ƒ Filter response characterized up
to 6 GHz
ƒ <2dB insertion loss in the pass
band
ƒ >20dB attenuation in the 800-
900 MHz range
ƒ >12dB attenuation in the WLAN
frequencies of 2.4GHz and 5.0-
6.0 GHz
PRODUCT HIGHLIGHT
Circuit Diagram
Functional Schematic with Pin Out
Copyright © 2002
Rev. 1.0d, 2005-02-07
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
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