LX7203-XX MICROSEMI [Microsemi Corporation], LX7203-XX Datasheet

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LX7203-XX

Manufacturer Part Number
LX7203-XX
Description
EMI Filter & ESD Protection for Up Stream USB Ports
Manufacturer
MICROSEMI [Microsemi Corporation]
Datasheet
Copyright  2002
Rev. 1.0a, 2002-10-22
Universal Serial Bus (USB) line
termination device with an EMI filter
and ESD protection diodes. This
device offers a cost effective and
compact
upstream port.
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.
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
-40 to 125
-40 to 125
connector
connector
The LX7203 is an integrated
T
D in
D in
from
from
V
J
BUS
(°C)
5
1.5K
I N T E G R A T E D
solution
SM
LX7203-15ISM
LX7203-22ISM
The USB v1.1
for
Note: Append the letter “T” to the part number
P A C K A G E O R D E R I N F O
6-Pin SC70
Plastic
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Circuit Diagram
one
D E S C R I P T I O N
Rs
Rs
For Tape & Reel Ordering
USB
P R O D U C T S
C
C
EDGE
EDGE
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
Package
Marking
The 47 pF capacitor completes the
315
322
P R O D U C T H I G H L I G H T
Integrated Products Division
Microsemi
(Reel Size)
Tape & Reel Quantity
2
D out
EMI Filter & ESD Protection for Up Stream USB
D out
3K (7inches)
to IC
to IC
connector
connector
P
RODUCTION
GND
from
from
Functional Schematic with PinOut
D
D
IN
IN
3
2
1
Ports
B E N E F I T S
USB Ports
Peripherals
Computers and Printers
Mobile phones
Pagers and PDA’s
Digital Cameras
D
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
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
?
ATA
K E Y F E A T U R E S
A P P L I C A T I O N S
R
S
PU
R
R
C
C
HEET
S
S
LX7203-xx
6
5
4
D
to IC
D
to IC
V
BUS
OUT
OUT
Page 1

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LX7203-XX Summary of contents

Page 1

... out EDGE connector 2 C EDGE D out connector to IC Microsemi Integrated Products Division LX7203-xx Ports RODUCTION ATA HEET Small SC70-6L Package Bi-directional EMI/RFI low-pass filter Line termination with integrated ESD protection Low TVS operating voltage (5 ...

Page 2

... S T Each Line COEFF R Each Line PU C Each Line EDGE Between I/O Pins and Ground, Each Device C TOT 1MHz Microsemi Integrated Products Division LX7203-xx Ports RODUCTION ATA HEET from connector ...

Page 3

... D- line of the USB Transceiver V BUS GND from connector 2 LX7203 GND from connector Figure 2 – Connection for Full Speed Operation Microsemi Integrated Products Division LX7203-xx Ports RODUCTION ATA HEET Peripheral (upstream port) LX7203 USB PU 5 Transceiver V BUS C ...

Page 4

... LX7203 is optimized to minimize the radiated EMI which is the primary concern in devices using USB. Refer to the typical filter response curve for the attenuation characteristics of LX7203 over the frequency range of 30kHz to 6GHz. Microsemi Integrated Products Division LX7203-xx Ports RODUCTION ATA HEET ...

Page 5

... 40.0ns Figure 5 – Clamping Characteristics when device Figure 7 – Analog Crosstalk between the two datalines D- and D+ Microsemi Integrated Products Division LX7203-xx Ports RODUCTION ATA HEET Ω ...

Page 6

... Dimensions do not include mold flash or protrusions; these shall not exceed 0.155mm(.006”) on any side. Lead dimension shall not include solder coverage. X Dim Microsemi Integrated Products Division LX7203-xx Ports RODUCTION ATA HEET M I ILLIMETERS NCHES MIN MAX ...

Page 7

... Copyright  2002 Rev. 1.0a, 2002-10-22 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 EMI Filter & ESD Protection for Up Stream USB Microsemi Integrated Products Division LX7203-xx Ports RODUCTION ATA HEET Page 7 ...

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