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參數(shù)資料
| 型號： | LX7203-22ISMTR |
| 廠商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分類： | 數(shù)據(jù)傳輸濾波器 |
| 英文描述： | 2 FUNCTIONS, 5.25 V, DATA LINE FILTER |
| 文件頁數(shù)： | 1/7頁 |
| 文件大?。?/td> | 250K |
| 代理商： | LX7203-22ISMTR |
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
WWW
.Microse
m
i
.CO
M
EMI Filter & ESD Protection for Up Stream USB
Ports
Copyright
2002
Rev. 1.1d, 2005-05-18
TM
DESCRI PTI O N
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 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 k
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 I N FO
SM
Plastic
6-Pin SC70
TJ (
°C)
RoHS Compliant / Pb-free
Transition DC: 0450
Package
Marking
Tape & Reel Quantity
(Reel Size)
-40 to 125
LX7203-15ISM
31
-40 to 125
LX7203-22ISM
32
3K (7inches)
Note: Append the letters “TR” 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 1.1 and USB 2.0 Full
Speed Compliant
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
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
LL
XX
77
22
00
33
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