LMH1983 Datasheet, PDF (54/55 Pages) National Semiconductor (TI) – Generating 44.1 kHz Based highly integrated programmable audio

RTA0040A
EXAMPLE STENCIL DESIGN
WQFN - 0.8 mm max height
PLASTIC QUAD FLATPACK - NO LEAD
40X (0.6)
1
40X (0.25)
36X (0.5)
SYMM
9X ( 1.28)
40
(1.48) TYP
31
30
(1.48)
TYP
(5.8)
METAL
TYP
10
21
(R0.05) TYP
11
20
SYMM
(5.8)
SOLDER PASTE EXAMPLE
BASED ON 0.125 mm THICK STENCIL
EXPOSED PAD
70% PRINTED SOLDER COVERAGE BY AREA
SCALE:15X
NOTES: (continued)
4214989/A 12/2014
5. Laser cutting apertures with trapezoidal walls and rounded corners may offer better paste release. IPC-7525 may have alternate
design recommendations.
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