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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ICS1893CFILFT датащи(PDF) 97 Page - Integrated Circuit Systems |
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ICS1893CFILFT датащи(HTML) 97 Page - Integrated Circuit Systems |
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97 / 126 page  Chapter 8 Pin Diagram, Listings, and Descriptions ICS1893CF, Rev. F, 03/01/07 Mar. 2007 97 ICS1893CF Data Sheet Rev. F - Release Copyright © 2007, Integrated Device Technology, Inc. All rights reserved. 8.3.2 Transformer Interface Pins Transformer connections on the ICS1893CK signals TP_AP, TP_AN, TP_BP and TP_BN are shown in Table 8-12. The previous TP_CT pin used on the ICS1893CF is not used with the ICS1893CK. The typical Twisted Pair Transformers connections are shown in Chapter 5. The transformer must be 1:1 ratio and symetrical for 10/100 MDI/MDIX applications since the transmit twisted pair and receive twisted pair are interchangeable. ICS1893 PHYs do not have power connections to the Transformer. All transformer power is supplied by the ICS1893CK. Note the twisted pairs are polarity sensitive and must connect to the RJ45 with the same polarity as shown in the figure. Pay particular attention to polarity of the the “B” pair being reversed in pad sequence. REF_IN 47 Frequency Ref Input: 25MHz Clock or Crystal REF_OUT 46 Frequency Ref Output for Crystal RESETn 17 System Reset (active low) Table 8-12. ICS1893CK Transformer Interface Pins Signal Name Pin No. Signals Description TP_AP 4 Twisted Pair A Positive TP_AN 5 Twisted Pair A Negative TP_BP 9 Twisted Pair B Positive TP_BN 8 Twisted Pair B Negative Table 8-11. ICS1893CK Configuration Pins Signal Name Pin No. Signals Description |
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