EELXT905PC.C2 데이터 시트보기 (PDF) - Intel

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EELXT905PC.C2

Universal 10BASE-T Transceiver with 3.3V Support

Intel 

Contents

Contents

1.0

Pin Assignments and Signal Descriptions...................................................... 8

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 ................................................................................. 15

3.0

Application Information......................................................................................... 17

3.1 Introduction.......................................................................................................... 17

3.1.1 Termination Circuitry .............................................................................. 17

3.1.2 Twisted-Pair Interface ............................................................................ 17

3.1.3 RBIAS Pin .............................................................................................. 17

3.1.4 Crystal Information ................................................................................. 17

3.1.5 Magnetic Information.............................................................................. 18

3.2 Typical 10BASE-T Application ............................................................................ 18

3.3 Dual Network Support - 10BASE-T and Token Ring........................................... 19

3.4 Simple 10BASE-T Connection ............................................................................ 21

4.0

Test Specifications .................................................................................................. 22

4.1 Timing Diagrams for Mode 1 (MD1 = Low, MD0 = Low) Figures 11 - 14............ 26

4.2 Timing Diagrams for Mode 2 (MD1 = Low, MD0 = High) Figures 15 - 18 ........... 28

4.3 Timing Diagrams for Mode 3 (MD1 = High, MD0 = Low) Figures 19 - 22 ........... 30

4.4 Timing Diagrams for Mode 4 (MD1 = High, MD0 = High) Figures 23 - 26 .......... 32

5.0

Mechanical Specifications.................................................................................... 34

A

Ordering Information .............................................................................................. 37

Figures

1

2

3

4

5

6

7

LXT905 Block Diagram ......................................................................................... 7

LXT905 Pin Assignments ...................................................................................... 8

LXT905 TPO Output Waveform .......................................................................... 10

Jabber Control Function ...................................................................................... 12

SQE Function ...................................................................................................... 13

Collision Detection Function................................................................................ 14

Link Integrity Test Function ................................................................................. 16

Datasheet

3

Document #: 249271

Revision #: 002

Rev. Date: June 19, 2001

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