SX1231 SEMTECH [Semtech Corporation], SX1231 Datasheet - Page 75

• Manufacturer Part Number: SX1231
• Description: Low Power Integrated UHF Transceiver
• Manufacturer: SEMTECH [Semtech Corporation]

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