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参数资料
| 型号： | LX7203-15ISMT |
| 厂商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分类： | 数据传输滤波器 |
| 英文描述： | 1 FUNCTIONS, DATA LINE FILTER |
| 文件页数： | 3/7页 |
| 文件大小： | 307K |
| 代理商： | LX7203-15ISMT |
LX7203-xx
PRODUCTION DATA SHEET
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 3
WWW
.Microse
m
i
.CO
M
EMI Filter & ESD Protection for Up Stream USB
Ports
Copyright
2002
Rev. 1.0a, 2002-10-22
I N T E GR A T ED
PRO DUC T S
APPLICATION CIRCUITS
USB
Transceiver
Host or Hub (downstream port)
Peripheral (upstream port)
USB
Transceiver
1
6
5
4
3
2
V
BUS
GND
C
R
S
R
PD
R
PD
R
S
C
16
5
4
3
2
V
BUS
GND
R
S
C
R
S
C
R
PU
LX7203
LX7201
Figure 1 –
Typical Application
APPLICATION INFORMATION
The LX7203 meets the requirements of the USB v1.1
specification for device termination, EMI filtering and ESD
protection. The RS resistor provides the proper signal
termination; the CEDGE capacitor controls 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 v1.1
specification.
FULL SPEED DEVICE (FIGURE 2)
The USB specification offers a 12 Mbps data transfer
rate known as Full-Speed which requires a 1.5 k pull-up
resistor to be connected to the D+ line. Slew rate control
is accomplished with CEDGE attached to the transceiver
before the RS.
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 k 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
cable
Host
USB
Transceiver
GND
D+
D-
V
BUS
Peripheral
USB
Transceiver
GND
D+
D-
V
BUS
R
PU
1
6
5
4
3
2
V
BUS
D
IN
from connector
D
OUT
to IC
GND
D
IN
from connector
D
OUT
to IC
LX7203
Figure 2 –
Connection for Full Speed Operation
AA
PP
LL
IICC
AA
TT
IIOO
NN
SS
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相关代理商/技术参数 |
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| LX7203-22ISM | 功能描述:IC USB LINE TERM EMI/ESD SC70-6 RoHS:是 类别:集成电路 (IC) >> 接口 - 信号终端器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:50 系列:- 类型:SCSI，SE 端子数:9 电源电压:4 V ~ 5.25 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC 包装:管件 |
| LX7203-XX | 制造商:MICROSEMI 制造商全称:Microsemi Corporation 功能描述:EMI Filter & ESD Protection for Up Stream USB Ports |
| LX-7204T-002AC | 制造商:MRV 制造商全称:MRV 功能描述:7304/7204 Sensor Manager |
| LX-7204T-012DC | 制造商:MRV 制造商全称:MRV 功能描述:7304/7204 Sensor Manager |
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