RF2418
Evaluation Board Schematic
RF=850MHz, IF=71MHz
(Download Bill of Materials from www.rfmd.com.)
L3
10 nH
LNA
50 Ω μstrip
50 Ω μstrip
50 Ω μstrip
50 Ω μstrip
J1
LNA IN
J5
1
2
3
4
5
6
7
14
13
12
11
10
9
LNA OUT
R4
5.11 kΩ
L2
18 nH
RF AMP
P1-3
50 Ω μstrip
J4
RF IN
C3
47 pF
Jumper
E2 E1
see note
10pF
C2
1 nF
R3
610 Ω
J2
IF OUT
C5
BUFFER
MIXER
C1
0.1 μF
3 pF to 5 pF
J3
LO IN
8
L4
10 nH
TP1
see note
R1
300 Ω
L1
1 μH
2418400C
C4
0.1 μF
P1
1
NC
Notes:
2
3
GND
VDD
For high impedance output
1) Populate L1 and TP1
2) Remove jumper E1 to E2
P1-3
VDD
8-26
Rev A7 060203
RFMD [ RF MICRO DEVICES ]
