參數(shù)資料
型號: SI5338N-A00000-GMR
廠商: SILICON LABORATORIES
元件分類: 時鐘產(chǎn)生/分配
英文描述: 700 MHz, PROC SPECIFIC CLOCK GENERATOR, QCC24
封裝: 4 X 4 MM, ROHS COMPLIANT, MO-220VGGD-8, QFN-24
文件頁數(shù): 25/34頁
文件大?。?/td> 285K
代理商: SI5338N-A00000-GMR
Si5338
Rev. 0.5
31
9. Recommended PCB Layout
Table 17. PCB Land Pattern
Dimension
Min
Nom
Max
P1
2.50
2.55
2.60
P2
2.50
2.55
2.60
X1
0.20
0.25
0.30
Y1
0.75
0.80
0.85
C1
3.90
C2
3.90
E0.50
Notes:
General
1. All dimensions shown are in millimeters (mm) unless otherwise noted.
2. Dimensioning and Tolerancing per ANSI Y14.5M-1994 specification.
3. This Land Pattern Design is based on the IPC-7351 guidelines.
Solder Mask Design
4. All metal pads are to be non-solder mask defined (NSMD). Clearance between the solder mask and the metal pad is
to be 60 m minimum, all the way around the pad.
Stencil Design
5. A stainless steel, laser-cut and electro-polished stencil with trapezoidal walls should be used to assure good solder
paste release.
6. The stencil thickness should be 0.125 mm (5 mils).
7. The ratio of stencil aperture to land pad size should be 1:1 for all perimeter pins.
8. A 2x2 array of 1.0 mm square openings on 1.25 mm pitch should be used for the center ground pad.
Card Assembly
9. A No-Clean, Type-3 solder paste is recommended.
10. The recommended card reflow profile is per the JEDEC/IPC J-STD-020C specification for Small Body Components.
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