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9DB403DGLF Datasheet(PDF) 9 Page - Integrated Device Technology |
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9DB403DGLF Datasheet(HTML) 9 Page - Integrated Device Technology |
9 / 19 page ![]() IDTTM/ICSTM Four Output Differential Buffer for PCIe Gen 1 and Gen 2 ICS9DB403D REV L 10/07/09 ICS9DB403D Four Output Differential Buffer for PCIe for Gen 1 and Gen 2 9 SRC Reference Clock Common Recommendations for Differential Routing Dimension or Value Unit Figure L1 length, Route as non-coupled 50 ohm trace. 0.5 max inch 1 L2 length, Route as non-coupled 50 ohm trace. 0.2 max inch 1 L3 length, Route as non-coupled 50 ohm trace. 0.2 max inch 1 Rs 33 ohm 1 Rt 49.9 ohm 1 Down Device Differential Routing Dimension or Value Unit Figure L4 length, Route as coupled microstrip 100 ohm differential trace. 2 min to 16 max inch 1 L4 length, Route as coupled stripline 100 ohm differential trace. 1.8 min to 14.4 max inch 1 Differential Routing to PCI Express Connector Dimension or Value Unit Figure L4 length, Route as coupled microstrip 100 ohm differential trace. 0.25 to 14 max inch 2 L4 length, Route as coupled stripline 100 ohm differential trace. 0.225 min to 12.6 max inch 2 Figure 1 Down device routing. Rs Rs Rt Rt HSCL Output Buffer PCI Ex Board Down Device REF_CLK Input L1 L2 L3’ L4 L1’ L2’ L3 L4’ Figure 1 Figure 2 PCI Express Connector Routing. Rs Rs Rt Rt HSCL Output Buffer PCI Ex Add In Board REF_CLK Input L1 L2 L3’ L4 L1’ L2’ L3 L4’ Figure 2 |
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