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参数资料
型号： WJLXT905LE.C2
厂商： CORTINA SYSTEMS INC
元件分类： 网络接口
英文描述： DATACOM, ETHERNET TRANSCEIVER, PQFP32
封装： ROHS COMPLIANT, MO-136BC, LQFP-32
文件页数： 23/40页
文件大小： 544K
代理商： WJLXT905LE.C2
Universal 10BASE-T Transceiver with 3.3V Support—LXT905
Datasheet
3
Document Number: 249271
Revision Number: 004
Revision Date: 19-Oct-2005
Contents
1.0
Pin Assignments and Signal Descriptions ...................................................................7
2.0
Functional Description........................................................................................................10
2.1
Introduction ......................................................................................................................... 10
2.2
Controller Compatibility Modes ........................................................................................... 11
2.3
Transmit Function ...............................................................................................................11
2.4
Jabber Control Function ..................................................................................................... 12
2.5
SQE Function ..................................................................................................................... 13
2.6
Receive Function ................................................................................................................ 13
2.7
Polarity Reverse Function................................................................................................... 14
2.8
Collision Detection Function ............................................................................................... 14
2.9
Loopback Functions............................................................................................................ 15
2.9.1
Internal Loopback .................................................................................................. 15
2.9.2
External Loopback/Full Duplex ..............................................................................15
2.10
Link Integrity Test Function.................................................................................................16
3.0
Application Information ......................................................................................................18
3.1
Introduction ......................................................................................................................... 18
3.1.1
Termination Circuitry.............................................................................................. 18
3.1.2
Twisted-Pair Interface ............................................................................................18
3.1.3
RBIAS Pin .............................................................................................................. 18
3.1.4
Crystal Information.................................................................................................18
3.1.5
Magnetic Information ............................................................................................. 19
3.2
Typical 10BASE-T Application ............................................................................................19
3.3
Dual Network Support - 10BASE-T and Token Ring .......................................................... 21
3.4
Simple 10BASE-T Connection............................................................................................22
4.0
Test Specifications ...............................................................................................................23
4.1
Timing Diagrams for Mode 1 (MD1 = Low, MD0 = Low) ....................................................27
4.2
Timing Diagrams for Mode 2 (MD1 = Low, MD0 = High)....................................................29
4.3
Timing Diagrams for Mode 3 (MD1 = High, MD0 = Low)....................................................31
4.4
Timing Diagrams for Mode 4 (MD1 = High, MD0 = High) ................................................... 33
5.0
Mechanical Specifications .................................................................................................35
6.0
Top-Label Device Marking .................................................................................................37
7.0
Ordering Information ...........................................................................................................39
Figures
1
Block Diagram .............................................................................................................................. 6
2
Pin Assignments ........................................................................................................................... 7
3
TPO Output Waveform ...............................................................................................................10
4
Jabber Control Function ............................................................................................................. 12
5
SQE Function ............................................................................................................................. 13
6
Collision Detection Function ....................................................................................................... 15
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