SX1231
ADVANCED COMMUNICATIONS & SENSING
8. Packaging Information
DATASHEET
8.1. Package Outline Drawing
The SX1231 is available in a 24-lead QFN package as show in Figure 38.
DIMENSIONS
MILLIMETERS
MIN NOM MAX
B
A
D
DIM
-
-
A
0.80
1.00
0.05
-
A1 0.00
-
(0.20)
A2
b
D
0.25 0.30 0.35
E
PIN 1
4.90 5.00 5.10
INDICATOR
(LASER MARK)
D1 3.20 3.25 3.30
E
4.90 5.00 5.10
E1 3.20 3.25 3.30
e
L
N
0.65 BSC
0.35 0.40 0.45
24
0.08
0.10
A1
A2
aaa
bbb
A
SEATING
PLANE
aaa
C
C
LxN
D1
E/2
E1
2
1
N
bxN
e/2
bbb
C A B
e
D/2
NOTES:
1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES).
COPLANARITY APPLIES TO THE EXPOSED PAD AS WELL AS THE TERMINALS.
2.
Figure 38. Package Outline Drawing
8.2. Recommended Land Pattern
K
DIMENSIONS
DIM MILLIMETERS
(4.90)
4.10
3.30
3.30
0.65
0.35
0.80
5.70
C
G
H
K
P
X
Y
Z
Z
(C)
H
G
Y
X
P
NOTES:
1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES).
2.
THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY.
CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR
COMPANY'S MANUFACTURING GUIDELINES ARE MET.
3. THERMAL VIAS IN THE LAND PATTERN OF THE EXPOSED PAD
SHALL BE CONNECTED TO A SYSTEM GROUND PLANE.
FAILURE TO DO SO MAY COMPROMISE THE THERMAL AND/OR
FUNCTIONAL PERFORMANCE OF THE DEVICE.
4. SQUARE PACKAGE-DIMENSIONS APPLY IN BOTH X AND Y DIRECTIONS.
Figure 39. Recommended Land Pattern
Rev 2 - Nov 2009
Page 75
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