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| 型号： | WJLXT908LC.A4 |
| 厂商： | INTEL CORP |
| 元件分类： | 网络接口 |
| 英文描述： | DATACOM, ETHERNET TRANSCEIVER, PQFP64 |
| 封装： | ROHS COMPLIANT, LQFP-64 |
| 文件页数： | 6/46页 |
| 文件大小： | 618K |
| 代理商： | WJLXT908LC.A4 |
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Intel
LXT908 Universal 3.3 V 10BASE-T and AUI Transceiver
14
Datasheet
Document #: 249049
Revision #: 003
Rev. Date: 29-Oct-2005
2.1.4
Receive Function
The Intel
LXT908 Universal 3.3 V 10BASE-T and AUI Transceiver receive function acquires
timing and data from the twisted-pair network (TPI circuit) or from the AUI (DI circuit). Valid
received signals are passed through the on-chip filters and Manchester decoder then output as
decoded NRZ data and recovered clock on the RXD and RCLK pins, respectively.
An internal RC filter and an intelligent squelch function discriminate noise from link test pulses
and valid data streams. The receive function is activated only by valid data streams above the
squelch level and with proper timing. If the differential signal at the TPI or the DI circuit inputs
falls below 75 percent of the threshold level (unsquelched) for 8 bit times (typical), the
Intel LXT908 Universal 3.3 V 10BASE-T and AUI Transceiver receive function enters the idle
state. If the polarity of the TPI circuit is reversed, Intel LXT908 Universal 3.3 V 10BASE-T and
AUI Transceiver detects the polarity reverse and reports it via the PLR output. The Intel
LXT908
Universal 3.3 V 10BASE-T and AUI Transceiver automatically corrects reversed polarity.
2.1.5
SQE Function
In the integrated PLS/MAU mode, the Intel
LXT908 Universal 3.3 V 10BASE-T and AUI
Transceiver supports the signal quality error (SQE) function as shown in Figure 5 on page 15,
although the SQE function can be disabled. After every successful transmission on the 10BASE-T
Figure 4. Jabber Control Function
No Output
Nonjabber Output
Start_XMIT_MAX_Timer
Power On
DO=Active
Jab
XMIT=Disable
LPBK=Disable
CI=SQE
Unjab Wait
Start_Unjab_Timer
XMIT=Disable
LPBK=Disable
CI=SQE
DO=Active
XMIT_Max_Timer_Done
DO=Idle
Unjab_ Timer_Done
DO=Active
Unjab_Timer_Not_Done
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相关代理商/技术参数 |
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| WJLXT908LE.A4 | 功能描述:IC 3V 10BASE-T/AUI TXCVR 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:1,000 系列:- 类型:收发器 驱动器/接收器数:2/2 规程:RS232 电源电压:3 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:16-SOIC（0.295"，7.50mm 宽） 供应商设备封装:16-SOIC 包装:带卷 (TR) |
| WJLXT908LE.A4-865811 | 制造商:Cortina Systems Inc 功能描述:Ethernet TXRX Single Chip 1-Port 3.3V 10Mbps 64-Pin LQFP |
| WJLXT908LE.A4-865812 | 制造商:Cortina Systems Inc 功能描述:LXT908 UNIVERSAL ETHERNET INTE |
| WJLXT908LEA4 | 制造商:Cortina Systems Inc 功能描述: |
| WJLXT971ALC.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 |
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