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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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XIO2001IPNP датащи(PDF) 125 Page - Texas Instruments |
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XIO2001IPNP датащи(HTML) 125 Page - Texas Instruments |
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125 / 141 page  125 XIO2001 www.ti.com SCPS212I – MAY 2009 – REVISED JANUARY 2016 Product Folder Links: XIO2001 Submit Documentation Feedback Copyright © 2009–2016, Texas Instruments Incorporated Layout (continued) All 32 bit PCI slots must be placed so the slot can be put on the board as either a 3 V or a 5 V slot. All pins used as keying pins (A12, A13, A50, A51, B12,B13, B50, B51) should be put on the board and connected to the GND plane. Mounting holes must be placed on either side of the socket. (CTXn + TXn) and (CTXp + TXp) are a 100 W differential impedance pair (50 W single ended) and must be length matched to within 5 mils. i.e. CTXp must be within 5 mils of CTXn, TXp must be within 5 mils of TXn, and (CTXp + TXp) must be within 5 mils of (CTXn + TXn). The coupling capacitors must be placed as close to the PCI Express Edge connector as possible. RXp and RXn are a 100 W differential impedance pair (50 W single ended) and must be length matched to within 5 mils. 9.3.2 Layout Example Figure 32. BGA Via Routing Layout |
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