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  Microsemi Electronic Components Datasheet  

LX7203 Datasheet

EMI Filter and ESD Protection

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INTEGRATED PRODUCTS
LX7203-xx
www.DataSheet4U.com
EMI Filter & ESD Protection for Up Stream USB
Ports
PRODUCTION DATA SHEET
DESCRIPTION
The LX7203 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 LX7203 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
upstream port. The USB v1.1 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 LX7203 minimizes board space
by matching the cable impedance to and allows for ideal placement near the
that of the differential driver. The 1.5 connector. The LX7203 is ideal for use
kpull-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
TJ (°C)
-40 to 125
-40 to 125
PACKAGE ORDER INFO
Plastic
SM 6-Pin SC70
Package Tape & Reel Quantity
Marking (Reel Size)
LX7203-15ISM
LX7203-22ISM
315
322
3K (7inches)
Note: Append the letter “T” to the part number
For Tape & Reel Ordering
KEY FEATURES
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
APPLICATIONS
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
D in
from
connector
1.5K
VBUS
5
D in
from
connector
PRODUCT HIGHLIGHT
Rs
CEDGE
D out
to IC
2
frDomIN 1
connector
2
GND
RS
C
RPU
?
6 DtoOIUCT
5
VBUS
CEDGE
Rs
Circuit Diagram
D out
to IC
froDmIN 3
connector
C
RS 4 DtoOIUCT
Functional Schematic with PinOut
Copyright 2002
Rev. 1.0a, 2002-10-22
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 1


  Microsemi Electronic Components Datasheet  

LX7203 Datasheet

EMI Filter and ESD Protection

No Preview Available !

INTEGRATED PRODUCTS
LX7203-xx
www.DataSheet4U.com
EMI Filter & ESD Protection for Up Stream USB
Ports
PRODUCTION DATA SHEET
ABSOLUTE MAXIMUM RATINGS
Steady State Power ................................................................100mW
ESD Air Discharge per IEC61000-4-2.......................................16kV
ESD Contact Discharge per IEC61000-4-2................................10kV
Lead Soldering Temperature (10 Seconds) ............................. 260°C
Operating Temperature ........................................... -40°C to +125°C
Storage Temperature Range .................................... -55°C to +150°C
Note: Exceeding these ratings could cause damage to the device. All voltages are
with respect to Ground. Currents are positive into, negative out of specified
terminal.
PACKAGE PIN OUT
DIN
from
connector
GND
1
2
DIN
from
connector
3
SM PACKAGE
(Top View)
6 DOUT
to IC
5 VBUS
4 DOUT
to IC
THERMAL DATA
SM Plastic 6-Pin SC70
THERMAL RESISTANCE-JUNCTION TO CASE, θJC
119 °C/W
THERMAL RESISTANCE-JUNCTION TO AMBIENT, θJA 122 °C/W
Junction Temperature Calculation: TJ = TA + (PD x θJA).
The θJA numbers are guidelines for the thermal performance of the device/pc-board
system. All of the above assume no ambient airflow.
Name
VBUS
DIN
GND
DOUT
Bus Voltage
Data In
Ground
Data Out
FUNCTIONAL PIN DESCRIPTION
Description
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, the following specifications apply over the operating ambient temperature -40°C TA +125°C except where
otherwise noted.
Parameter
Stand-Off Voltage
Breakdown Voltage
Leakage Current
Series Resistance (-15)
Series Resistance (-22)
Temperature Coefficient of RS
Pull Up Resistance
Capacitor
Total Capacitance
Symbol
VRWM
VBR
IR
RS
RS
TCOEFF
RPU
CEDGE
CTOT
Test Conditions
IR = 1mA
VRWM = 5.25V, T = 25°C
Each Line
Each Line
Each Line
Each Line
Each Line
Between I/O Pins and Ground, Each Device
VR = 0V, f = 1MHz
LX7203
Min Typ Max
5.25
6
1
13.5 15 16.5
19.8 22 24.2
200
1.35 1.5 1.65
47
54 60 66
Units
V
V
µA
ppm
K
pF
pF
Copyright 2002
Rev. 1.0a, 2002-10-22
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 2


Part Number LX7203
Description EMI Filter and ESD Protection
Maker Microsemi Corporation
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