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g-Sensor 不一定要放中間,有的話可能是考慮到電路板邊緣,板彎或板翹會較嚴重,偏移量(Offset)可能會較大。陀螺儀(Gyroscope)則是建議放邊邊,因為轉動時角速度會最大、靈敏度較佳。
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" H& I' Y7 I, k肥死卡好(Freescale)的 g-Sensor PCB Layout 建議
% r. A) g2 e0 m+ ~4 w' L, ]( E- Do not place any components or vias at a distance less than 5 mm from the package land area. This may causeadditional package stress if it is too close to the package land area.additional package stress if it is too close to the package land area.
- No copper traces on top layer of PCB under the package. This will cause planarity issues with board mount.( K( U8 G1 V; @# W" x% F8 d' a
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