参数资料
型号: WJLXT971ALE.A4SE000
厂商: CORTINA SYSTEMS INC
元件分类: 网络接口
英文描述: DATACOM, ETHERNET TRANSCEIVER, PQFP64
封装: LEAD FREE, LQFP-64
文件页数: 65/116页
文件大小: 1172K
代理商: WJLXT971ALE.A4SE000
LXT971A 3.3V Dual-Speed Fast Ethernet Transceiver
52
Datasheet
Document #: 249414
Revision #: 002
Rev. Date: August 7, 2002
4.3
The Fiber Interface
The fiber interface consists of an LVPECL transmit and receive pair to an external fiber-optic
transceiver. Both 3.3 V fiber-optic transceivers and 5 V fiber-optic transceivers can be used with
the LXT971A.
The following should occur in 3.3 V fiber transceiver applications as shown in Figure 25:
The transmit pair should be DC-coupled with the 50 /16 pull-up combination
The receive pair should be DC-coupled with an emitter current path for the fiber transceiver
The signal detect pin should be DC-coupled with an emitter current path for the fiber
transceiver
Refer to the fiber transceiver manufacturer’s recommendations for termination circuitry. Figure 25
shows a typical example of an LXT971A-to-3.3 V fiber transceiver interface.
The following occurs in 5 V fiber transceiver applications as shown in Figure 26:
The transmit pair should be AC-coupled and re-biased to 5 V PECL input levels
The receive pair should be AC-coupled with an emitter current path for the fiber transceiver
and re-biased to 3.3 V LVPECL input levels.
The signal detect pin on a 5 V fiber transceiver interface should use the logic translator circuitry as
shown in Figure 27. Refer to the fiber transceiver manufacturer’s recommendations for termination
circuitry. Figure 26 shows a typical example of an LXT971A-to-5 V fiber transceiver interface,
while Figure 27 shows the interface circuitry for the logic translator.
相关PDF资料
PDF描述
WJLXT971ALE.A4SE001 DATACOM, ETHERNET TRANSCEIVER, PQFP64
WJLXT971ALC.A4 DATACOM, ETHERNET TRANSCEIVER, PQFP64
WJLXT971ALE.A4 DATACOM, ETHERNET TRANSCEIVER, PQFP64
WJLXT971ALC.A4 DATACOM, ETHERNET TRANSCEIVER, PQFP64
WJLXT971ALE.A4 DATACOM, ETHERNET TRANSCEIVER, PQFP64
相关代理商/技术参数
参数描述
WJLXT971CA4 制造商:Intel 功能描述:
WJLXT972ALC.A4 功能描述:IC TRANS 3.3V ETHERNET 64-LQFP RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器,接收器,收发器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:25 系列:- 类型:收发器 驱动器/接收器数:2/2 规程:RS232 电源电压:4.5 V ~ 5.5 V 安装类型:通孔 封装/外壳:16-DIP(0.300",7.62mm) 供应商设备封装:16-PDIP 包装:管件
WJLXT972ALC.A4 S E001 制造商:Intel 功能描述:PHY 1-CH 10Mbps/100Mbps 64-Pin LQFP T/R
WJLXT972ALC.A4-857341 功能描述:TXRX ETH 10/100 SGL PORT 64-LQFP RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器,接收器,收发器 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:收发器 驱动器/接收器数:1/1 规程:RS422,RS485 电源电压:4.75 V ~ 5.25 V 安装类型:通孔 封装/外壳:8-DIP(0.300",7.62mm) 供应商设备封装:8-PDIP 包装:管件 产品目录页面:1402 (CN2011-ZH PDF)
WJLXT972ALC.A4-857345 功能描述:TXRX ETH 10/100 SGL PORT 64-LQFP RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器,接收器,收发器 系列:- 标准包装:1 系列:- 类型:线路收发器 驱动器/接收器数:5/3 规程:RS232 电源电压:3 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:28-SOIC(0.295",7.50mm 宽) 供应商设备封装:28-SOIC 包装:Digi-Reel® 产品目录页面:918 (CN2011-ZH PDF) 其它名称:296-25096-6