lx7202 Microsemi Corporation, lx7202 Datasheet

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lx7202

Manufacturer Part Number
lx7202
Description
Emi Filter & Esd Protection For Up Stream Usb Ports
Manufacturer
Microsemi Corporation
Datasheet
Copyright © 2002
Rev. 1.0d, 2007-04-11
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. 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 kΩ
pull-up
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
The LX7202 is an integrated
T
J
connector
connector
(°C)
D in
D in
from
from
V
TM
BUS
solution
resistor
1
1.5K
SF
LX7202-15ISF
LX7202-22ISF
for
identifies
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 SOT23
Plastic
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Circuit Diagram
Rs
one
Rs
D E S C R I P T I O N
For Tape & Reel Ordering
47pF
47pF
USB
the
high frequency filter and controls the
edge rate of the USB signals.
LX7202 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 LX7202 minimizes board space
and allows for ideal placement near the
connector. The LX7202 is ideal for use
in USB hubs, peripherals and portable
appliances.
Package
Marking
The 47 pF capacitor completes the
2021
2022
P R O D U C T H I G H L I G H T
Analgo Mixed Signal Group
6
D out
®
D out
to IC
to IC
Microsemi
(Reel Size)
Tape & Reel Quantity
EMI Filter & ESD Protection for Up Stream USB
3K (7inches)
connector
connector
V
P
The
from
from
D
D
BUS
RODUCTION
IN
IN
Functional Schematic with PinOut
1
2
3
Ports
B E N E F I T S
D
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
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
Available with 15 or 22Ω Series
Resistance
Crosses from Semtech STF202
USB 1.1 and USB 2.0 Full
Speed Compliant
Peripherals
Computers and Printers
Mobile phones
Pagers and PDA’s
Digital Cameras
R
PU
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
R
S
S
S
C
HEET
C
LX7202-xx
6
5
4
GND
D
D
to IC
to IC
OUT
OUT
Page 1

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lx7202 Summary of contents

Page 1

... IEC61000-4-2, level 4, 15kV (air discharge) and 8kV (contact discharge).The integrated configuration of the LX7202 minimizes board space and allows for ideal placement near the connector. The LX7202 is ideal for use the in USB hubs, peripherals and portable appliances. Package Tape & Reel Quantity ...

Page 2

... HEET BUS from connector from connector SF P ACKAGE (Top View) ≤ ≤ T +125°C except where A LX7202-xx Min Typ Max 5. 13.5 15 16.5 19.8 22 24.2 200 1.35 1.5 1. GND D OUT OUT ...

Page 3

... Transceiver 6 GND The LX7202 meets the requirements of the USB v1.1 and USB 2.0 Full Speed specification for device termination, EMI filtering and ESD protection. The RS resistor provides the proper signal termination; the 47pF capacitor controls the signal rise and fall slew; the TVS diodes protect the IC from ESD damage ...

Page 4

... Figure 3 – Connection for Low Speed Operation control cards, interface boards, external memory expansion cards and other input/output devices that may or may not contain digital circuitry. LX7202 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 LX7202 over the frequency range of 30KHz to 6GHz ...

Page 5

... Figure 5 – Clamping Characteristics when device subjected CH1 S12 LOG STOP 6 000.000 000 MHz START 0.030 000 MHz Figure 7 – Analog Crosstalk between the two datalines D- and D+ Microsemi Analgo Mixed Signal Group LX7202-xx Ports RODUCTION ATA HEET Ω 5.0V 40.0ns ...

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 Analgo Mixed Signal Group LX7202-xx Ports D S ATA HEET M I ILLIMETERS NCHES MIN MAX MIN MAX 0 ...

Page 7

... Copyright © 2002 Rev. 1.0d, 2007-04-11 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 ® EMI Filter & ESD Protection for Up Stream USB Ports P RODUCTION Microsemi Analgo Mixed Signal Group LX7202- ATA HEET Page 7 ...

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