LX7203-22ISM Microsemi Analog Mixed Signal Group, LX7203-22ISM Datasheet - Page 3

• Manufacturer Part Number: LX7203-22ISM
• Description: IC USB LINE TERM EMI/ESD SC70-6
• Manufacturer: Microsemi Analog Mixed Signal Group
• Type: USBr

Specifications of LX7203-22ISM

• Number Of Terminations: 2
• Voltage - Supply: 5.25V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: SC-70-6, SC-88, SOT-363
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Copyright © 2002
Rev. 1.1d, 2005-05-18
USB 2.0 Full Speed specification for device termination,
EMI filtering and ESD protection. The R
the proper signal termination; the C
the signal rise and fall slew; the TVS diodes protect the IC
from ESD damage; and the total capacitance and resistance
creates a low pass filter eliminating the high frequency
energy from the circuit. The LX7203 can configure the
upstream port for either Full-Speed or Low-Speed
operation. The figures below show the proper connection in
accordance with the USB specification.
The LX7203 meets the requirements of the USB v1.1 and
Transceiver
TM
USB
Host or Hub (downstream port)
Transceiver
Host
USB
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
GND
4
5
6
cable
LX7201
EDGE
Figure 2 – Connection for Full Speed Operation
C
GND
R
V
C
S
A P P L I C A T I O N I N F O R M A T I O N
BUS
R
D+
D-
R
PD
R
S
PD
S
capacitor controls
resistor provides
A P P L I C A T I O N C I R C U I T S
Figure 1 – Typical Application
V
1
3
2
BUS
Integrated Products Division
®
from connector
from connector
GND
Microsemi
D
D
IN
IN
EMI Filter & ESD Protection for Up Stream USB
1
2
3
F
transfer rate known as Full-Speed which requires a 1.5 kΩ
pull-up resistor to be connected to the D+ line. Slew rate
control is accomplished with C
transceiver before the R
ULL
LX7203
The USB 2.0 specification offers a 12 Mbps data
Voltage Supply (Vbus) is connected to Pin 5
Ground is connected to Pin 2
D+ from the connector is routed to Pin 1 (1.5 kΩ pull-up
resistor) and Pin 6 to the D+ line of the USB
Transceiver
D- from the connector is routed to Pin 3 and Pin 4 to
the D- line of the USB Transceiver
R
PU
S
GND
PEED
3
1
2
6
4
5
D
to IC
P
V
D
to IC
D
OUT
BUS
OUT
Peripheral (upstream port)
RODUCTION
EVICE
LX7203
R
PU
(F
R
C
R
C
S
S
S
IGURE
Ports
.
D
Transceiver
V
GND
D+
D-
Peripheral
BUS
ATA
2)
USB
6
5
4
V
BUS
S
EDGE
HEET
attached to the
Transceiver
LX7203-xx
USB
Page 3