LX7202 Datasheet, PDF (1/7 Pages) Microsemi Corporation – EMI Filter & ESD Protection for Up Stream USB Ports

LX7202-xx
INTEGRATED PRODUCTS
EMI Filter & ESD Protection for Up Stream USB
Ports
PRODUCTION DATA SHEET
DESCRIPTION
The LX7202 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 LX7202 protects both D+ and D- data
device offers a cost effective and lines and the voltage bus from ESD. The
compact solution for one USB TVS protection diodes exceed the
upstream port. The USB specification requirements of IEC61000-4-2, level 4,
requires line termination resistors on 15kV (air discharge) and 8kV (contact
both the D+ and D- lines. These discharge).The integrated configuration
resistors ensure signal integrity by of the LX7202 minimizes board space
matching the cable impedance to that and allows for ideal placement near the
of the differential driver. The 1.5 kΩ connector. The LX7202 is ideal for use
pull-up resistor identifies the in USB hubs, peripherals and portable
appropriate data line for full speed or appliances.
low speed operation.
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)}
LX7202-15ISF
215
LX7202-22ISF
222
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 STF202
APPLICATIONS
ƒ USB 1.1 and USB 2.0 Full
Speed Compliant
ƒ Peripherals
ƒ Computers and Printers
ƒ Mobile phones
ƒ Pagers and PDA’s
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
D in
from
connector
1.5K
VBUS
1
D in
from
connector
PRODUCT HIGHLIGHT
Rs
47pF
47pF
Rs
Circuit Diagram
D out
to IC
6
D out
to IC
V_BUS 1
R_PU
C
6 GND
D_IN
from 2
connector
R_S
5
C
D_IN
from
3
4
connector
R_S
Functional Schematic with PinOut
D_OUT
to IC
D_OUT
to IC
Copyright © 2002
Rev. 1.0c, 2005-01-28
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
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