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LAN8820I датащи(PDF) 17 Page - Microchip Technology |
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LAN8820I датащи(HTML) 17 Page - Microchip Technology |
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17 / 83 page ![]() 2009-2015 Microchip Technology Inc. DS00001871B-page 17 LAN8820/LAN8820I 3.2.1 REQUIRED ETHERNET MAGNETICS The magnetics selected for use with the device should be an Auto-MDIX style magnetic available from several vendors. Refer to Application Note 8.13 "Suggested Magnetics" for the latest qualified and suggested magnetics. Vendors and part numbers are provided in this application note. FIGURE 3-1: CABLE CONNECTION TYPES: STRAIGHT-THROUGH, CROSSOVER, SEMI CROSSOVER 1 2 3 4 5 6 7 8 TR0P 1 2 3 4 5 6 7 8 TR0P Direct Connect Cable RJ-45 8-pin Straight-Through 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 Crossover Cable RJ-45 8-pin Crossover TR2P TR3P TR1P TR3N TR1N TR2N TR0N TR0N TR1P TR2P TR2N TR1N TR3P TR3N TR0P TR2P TR3P TR1P TR3N TR1N TR2N TR0N TR0P TR0N TR1P TR2P TR2N TR1N TR3P TR3N 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 0/1 Straight, 2/3 Crossed RJ-45 8-pin Semi Crossover TR0P TR2P TR3P TR1P TR3N TR1N TR2N TR0N TR0P TR0N TR1P TR2P TR2N TR1N TR3P TR3N 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 0/1 Crossed, 2/3 Straight RJ-45 8-pin Semi Crossover TR0P TR2P TR3P TR1P TR3N TR1N TR2N TR0N TR0P TR0N TR1P TR2P TR2N TR1N TR3P TR3N |
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