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CC2430-RTR1-F64Z 数据表(PDF) 228 Page - Texas Instruments |
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CC2430-RTR1-F64Z 数据表(HTML) 228 Page - Texas Instruments |
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228 / 234 page  CC2430 CC2430 PRELIMINARY Data Sheet (rev. 1.03) SWRS036A Page 228 of 232 19.1 Recommended PCB layout for package (QLP 48) Figure 60: Recommended PCB layout for QLP 48 package Note: The figure is an illustration only and not to scale. There are nine 14 mil diameter via holes distributed symmetrically in the ground pad under the package. See also the CC2430 EM reference design. 19.2 Package thermal properties Thermal resistance Air velocity [m/s] 0 Rth,j-a [K/W] 25.6 Table 103: Thermal properties of QLP 48 package 19.3 Soldering information The recommendations for lead-free solder reflow in IPC/JEDEC J-STD-020C should be followed. 19.4 Plastic tube specification Tube Specification Package Tube Width Tube Height Tube Length Units per Tube QLP 48 8.5mm ± 0.2mm 2.2mm +0.2/–0.1mm 315mm ± 1.25mm 43 Table 104: Plastic tube specification |
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