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LXT975 数据表(PDF) 4 Page - Intel Corporation |
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LXT975 数据表(HTML) 4 Page - Intel Corporation |
4 / 74 page LXT974/LXT975 — Fast Ethernet 10/100 Quad Transceivers 4 Datasheet 2.7.2 Per Port LEDs ........................................................................................ 38 2.7.2.1 LEDn_0 ..................................................................................... 38 2.7.2.2 LEDn_1 ..................................................................................... 38 2.7.2.3 LEDn_2 ..................................................................................... 38 2.8 Operating Requirements ..................................................................................... 39 2.8.1 Power Requirements.............................................................................. 39 2.8.1.1 MII Power Requirements........................................................... 39 2.8.1.2 Low-Voltage Fault Detect .......................................................... 39 2.8.1.3 Power Down Mode .................................................................... 39 2.8.2 Clock Requirements ............................................................................... 39 3.0 Application Information......................................................................................... 40 3.1 Design Recommendations .................................................................................. 40 3.1.1 General Design Guidelines .................................................................... 40 3.1.2 Power Supply Filtering ........................................................................... 40 3.1.2.1 Ground Noise ............................................................................ 41 3.1.3 Power and Ground Plane Layout Considerations .................................. 41 3.1.3.1 Chassis Ground......................................................................... 41 3.1.4 MII Terminations .................................................................................... 41 3.1.5 The RBIAS Pin ....................................................................................... 42 3.1.6 The Twisted-Pair Interface ..................................................................... 42 3.1.7 The Fiber Interface ................................................................................. 42 3.2 Magnetics Information ......................................................................................... 43 3.2.1 Magnetics With Improved Return Loss Performance............................. 43 3.3 Twisted-Pair/ RJ-45 Interface.............................................................................. 44 4.0 Test Specifications.................................................................................................. 50 5.0 Register Definitions ................................................................................................ 63 6.0 Package Specification............................................................................................ 73 |
类似零件编号 - LXT975 |
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类似说明 - LXT975 |
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