DEMO-ALM-12X24 Datasheet, PDF (9/12 Pages) Broadcom Corporation. – 50 Watt High Power SPDT Switch with LNA Module

Demo Board Layout
Top View
C10
C6
C1
C7
C8
C5
C9
R2 C4
14 Pin
Connector 1
7
Figure 12. Demo Board Layout Diagram
– Recommended PCB material is 20 mils Rogers RO4350.
– Suggested component values may vary according to layout and PCB material.
– Optional LNA1_out and LNA2_In traces are electrically disconnected.
Simplified Schematic
Vc1 Vbias Vdd2
Tx
C2
Ant ^C1
Vc2
Vg
C9
R1
Vdd1_C3
C4
R2
LNA1
LNA2
output
input
C6
C10
C7
C8
L1
C5
Rx Out
Figure 13. Demo Board Schematic Diagram matching
9
Table 1. Component list for 1.90 GHz
Component
C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
R1
R2
L1
Vendor
Murata
Murata
Murata
Murata
Murata
Murata
Murata
Murata
Murata
Murata
KOA
KOA
Murata
Size
0805
0805
0805
0402
0402
0603
0402
0402
0805
0805
0402
0402
0402
Value
18 pF
12 pF
4.7 F
10 pF
5.6 pF
2.2 F
0.1 F
10 pF
4.7 F
4.7 F
3.6 Kohm
0 ohm
47 nH