CC2430 Datasheet, PDF (228/234 Pages) Texas Instruments – A True System-on-Chip solution for 2.4 GHz IEEE 802.15.4 / ZigBee-TM

19.1 Recommended PCB layout for package (QLP 48)
CC2430
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
QLP 48 8.5mm ± 0.2mm
Tube Height
2.2mm +0.2/–0.1mm
Tube Length
315mm ± 1.25mm
Units per Tube
43
Table 104: Plastic tube specification
CC2430 PRELIMINARY Data Sheet (rev. 1.03) SWRS036A
Page 228 of 232