UM8411_16 Datasheet, PDF(5/7 Page) Union Semiconductor, Inc. – 8 Line ESD/EMI Protection for Color LCD Interfaces

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UM8411_16 Datasheet, PDF (5/7 Pages) Union Semiconductor, Inc. – 8 Line ESD/EMI Protection for Color LCD Interfaces

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UM8411/8411Z

Figure 3 shows the recommended device layout. The ground pad vias have a diameter of 0.008

inches (0.20 mm) while the two external vias have a diameter of 0.010 inches (0.250mm). The

internal vias are spaced approximately evenly from the center of the pad. The designer may

choose to use more vias with a smaller diameter (such as 0.005 inches or 0.125mm) since

changing the diameter of the via will result in little change in inductance (i.e. the log function in

Equation 2 in highly insensitive to parameter d) .

Figure 3 â Recommended Layout Using Ground Vias

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http://www.union-ic.com Rev.05 Mar.2016

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