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ICS8714004I Datasheet(PDF) 5 Page - Integrated Device Technology |
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ICS8714004I Datasheet(HTML) 5 Page - Integrated Device Technology |
5 / 31 page ![]() ICS8714004DKI REVISION A MARCH 24, 2014 5 ©2014 Integrated Device Technology, Inc. ICS8714004I Data Sheet FemtoCLock® Zero Delay Buffer/Clock Generator for PCI Express™ and Ethernet Function Tables Table 3A. Common Configuration Table NOTE 1 NOTE 1: This table shows common configurations and is not exhaustive. When using alternate configurations, the user must ensure the VCO frequency is always within its range of 490MHz – 660MHz. Table 3B. Output Enable Truth Table Table 3C. Feedback Input Divider Control Table Table 3D. Feedback Output Divider Control Table Table 3E. Input Divide Select Control Table Table 3F. Output Divider Control Control Table Input Frequency Output Frequency Application Frequency Mult. Factor PDIV FBI_DIV FBO_DIV QDIVx 100MHz 100MHz PCIe Buffer 1 ÷1 ÷1 ÷5 ÷5 125MHz 125MHz PCIe, Ethernet Buffer 1 ÷1 ÷1 ÷4 ÷4 100MHz 125MHz PCIe Multiplier 5/4 ÷1 ÷1 ÷5 ÷4 125MHz 100MHz PCIe Divider 4/5 ÷1 ÷1 ÷4 ÷5 25MHz 100MHz PCIe Multiplier 4 ÷1 ÷4 ÷5 ÷5 25MHz 125MHz PCIe, Ethernet Multiplier 5 ÷1 ÷4 ÷5 ÷4 25MHz 156.25MHz XAUI Multiplier 25/4 ÷1 ÷5 ÷5 ÷4 62.5MHz 125MHz Ethernet Multiplier 2 ÷1 ÷2 ÷4 ÷4 53.125MHz 106.25MHz Fibre Channel Multiplier 2 ÷1 ÷2 ÷5 ÷5 Inputs Output State OE1 OE0 Q0, nQ0 Q1, nQ1 Q2, nQ2 Q3, nQ3 0 0 Q0, nQ0 switching Disabled (High Impedance) Disabled (High Impedance) Disabled (High Impedance) 0 1 Q0, nQ0 switching Q1, nQ1 switching Disabled (High Impedance) Disabled (High Impedance) 1 0 Q0, nQ0 switching Q1, nQ1 switching Q2, nQ2 switching Disabled (High Impedance) 1(default) 1(default) Q0, nQ0 switching Q1, nQ1 switching Q2, nQ2 switching Q3, nQ3 switching Inputs Feedback Input Divider Values FBI_DIV1 FBI_DIV0 00 ÷1 01 ÷2 10 ÷4 1 1 ÷5 (default) Inputs Feedback Output Divider Value FBO_DIV 0 ÷4 (default) 1÷5 Inputs Input Divider Values PDIV1 PDIV0 0 0 ÷4 (default) 01 ÷5 10 ÷8 11 ÷1 Inputs Output Divider Value QDIV[3:0] 0 ÷4 (default) 1÷5 |
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