Micrel

MICRF505BML/YML

August 2006

32

M9999-092904

+1 408-944-0800

MICRF505LBML/YML Land pattern

Figure below shows recommended land pattern. Red circles indicate Thermal/RFGND via’s. Recommended size

is 0.300-0.350mm with a pitch of 1mm. The recommended minimum number of via’s are 9 and they should be

directly connected to ground plane providing the best RF ground and thermal performance. For best yield plugged

or open via’s should be used.

D2'

Y

e

X

E2'

SD

SE

d

D2’

E2’

SD

SE

d

e

X

Y

Units

3.4 ±0.02

3.4 ±0.02

4.2 ±0.05

4.2 ±0.05

0.325 ±0.25

0.5

0.23 ±0.02

0.5 ±0.02

mm

Red circle indicates Thermal Via. Size 0.300-0.350mm