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SX1231
WIRELESS & SENSING PRODUCTS
8. Packaging Information
8.1. QFN 24 Encapsulation
The SX1231 is available in a 24-lead QFN package as show in Figure 43.
DATASHEET
DIM
A
0.80
1.00
A1
0.00
0.05
A
PIN 1
INDICATOR
(LASER MARK)
A
aaa C
A1
D
B
E
A2
SEATING
PLANE
DIMENSIONS
MILLIMETERS
MIN NOM MAX
-
-
A2 - (0.20) -
b 0.25 0.30 0.35
D 4.90 5.00 5.10
D1 3.20 3.25 3.30
E 4.90 5.00 5.10
E1 3.20 3.25 3.30
e 0.65 BSC
L 0.35 0.40 0.45
N 24
aaa 0.08
bbb 0.10
(C) H
K
G
Z
DIM
C
G
H
K
P
X
DIMENSIONS
MILLIMETERS
(4.90)
4.10
3.30
3.30
0.65
0.35
D1
C
LxN
X
P
Y
Y
Z
0.80
5.70
E/2
E1
2
1
NOTES:
1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES).
2. THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY.
e/2
N
e
bxN
bbb
C A B
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.
D/2
NOTES:
1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES).
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.
2. COPLANARITY APPLIES TO THE EXPOSED PAD AS WELL AS THE TERMINALS.
Figure 43. QFN 24 Package Outline Drawing and Land Pattern
Rev. 7 - June 2013
Page 81
www.semtech.com
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