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FCN-260 Datasheet(PDF) 3 Page - Fujitsu Component Limited. |
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FCN-260 Datasheet(HTML) 3 Page - Fujitsu Component Limited. |
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3 / 16 page  microGiGaCnTM fCn-260 (D) Series Dimensions are in millimeters (inches) http://us.fujitsu.com/components Specifications subject to change used to develop SPICE or other models and to provide detailed data to the design community. Typical high-frequency test boards designed by Fujitsu include: l well-controlled impedance, matched-Iength test traces (with "real-world" widths and spacings) l calibration/reference lines that mimic the test traces l connector region entities (pads, pins, vias) that reflect actual system board implementations l low discontinuity test connectors (these give access to the measurement equipment) of sufficient bandwidth to meet the testing needs (e.g. SMA, 55MB, etc.) Differential pairs must be well-matched in order to minimize skew and maintain the proper impedance. Calibration lines of lengths "L" (where L is the length of the test traces between the article under test and the test connectors) and 2L provide the opportunity to calibrate out the board effects (if necessary) as well as to make "reference" measurements to test the goodness of an interconnect. These reference measurements are especially important when determining transmission fidelity. Fujitsu Components attempts to use standard, commonly available FR-4 type board materials (better performers than some believe) whenever possible; however, there are times when so-called "low loss" board materials may be required, such as for long paths running at gigabit speeds. In addition to very good test articles, test equipment must be selected that will provide for the measurements required at the bandwidths needed. Measurements may be completed for differential interconnects running at 100 Mbps, 625 Mbps, 1 Gbps, 2.5 Gbps or beyond depending on the system being designed. Fujitsu Components typically measures for single-ended and differential impedance (using a "TDR"), transmission fidelity, crosstalk, and eye pattern performance among other measures of quality. Typical transmission parameters quantified include signal edge and amplitude losses, skews, propagation delays, and interconnect bandwidth. At times, frequency domain data (such as S-parameters) adds insight into these measurements and may be preferred by some customers. However, differential measurements in the frequency domain must be approached with caution and specialized knowledge. |
Número de pieza similar - FCN-260 |
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Descripción similar - FCN-260 |
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