RF2418
Evaluation Board Schematic
RF=850MHz, IF=71MHz
(Download Bill of Materials from www.rfmd.com.)
L3
J1
LNA IN
50 Ω µstrip
10 nH
1
R4
5.11 kΩ
2
LNA
14
13
50 Ω µstrip
J5
LNA OUT
P1-3
J2
IF OUT
Jumper
E2 E1
see note
R3
610 Ω
C1
0.1 µF
C3
47 pF
3
4
10pF
5
6 BUFFER
7
RF AMP
MIXER
12
50 Ω µstrip
11
C2
10
1 nF
9
C5
3 pF to 5 pF
8
L4
10 nH
L2
18 nH
50 Ω µstrip
50 Ω µstrip
J4
RF IN
J3
LO IN
TP1
C4
R1
0.1 µF 300 Ω
L1
1 µH
see note
2418400C
P1
8
NC 1
VDD
Notes:
For high impedance output
1) Populate L1 and TP1
2) Remove jumper E1 to E2
P1-3
2 GND
3 VDD
8-40
Rev A6 010717