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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： | 4/7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 4
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 IN FORMATION (CONTINUED )
LOW SPEED DEVICE (FIGURE 3)
The USB specification offers a 1.5 Mbps data transfer
rate known as Low-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 3 and Pin 4 to
the D+ line of the USB Transceiver
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
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 3 –
Connection for Low Speed Operation
ELECTROMAGNETIC EMISSION AND SUSCEPTABILITY
FCC Part 15 sets limits for maximum allowable EM
emission and susceptibility. There are two types of
emissions.
Conducted emissions with frequency of
emission of 0.45 to 30 MHz and radiated emissions with
frequency of emission of 30 MHz to 40 GHz. All digital
computing devices including the peripheral devices must
comply. Examples of peripheral devices include terminals,
printers, external floppy disk drives and other data storage
devices, video monitors, keyboards, control cards, interface
boards, external memory expansion cards and other
input/output devices that may or may not contain digital
circuitry. 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.
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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 |
| LX7206 | 制造商:MICROSEMI 制造商全称:Microsemi Corporation 功能描述:Integrated EMI Filter & ESD Protection for Earpiece Speaker & Microphone Ports |
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