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RF3108
Rev A7 051003
Application Schematic
Evaluation Board Schematic
1
2
4
3
6
5
7
14
13
11
12
9
10
8
V
CC
50
Ω μstrip
50
Ω μstrip
50
Ω μstrip
V
CC
50
Ω μstrip
50
Ω μstrip
DCS/PCS
RF IN
DCS/
PCS
VAPC2
GSM
VAPC1
GSM
RF IN
PCS/DCS
RF OUTPUT
GSM
RF OUTPUT
1
μF
V
CC
4.7
μF
Note: Add the typical microstrip loss to the output
power measured at the output connector of
evaluation board to calculate the actual power at
the RF3108 module output pin.
(0.25 typical microstrip loss)
(0.15 typical microstrip loss)
1
2
4
3
6
5
7
14
13
11
12
9
10
8
50
Ω μstrip
50
Ω μstrip
50
Ω μstrip
50
Ω μstrip
50
Ω μstrip
50
Ω μstrip
J1
DCS/PCS
RF IN
J5
DCS/PCS
VAPC2
J6
GSM
VAPC1
J3
GSM
RF IN
C5
1
μF
C7
10 nF
C6
10 nF
R1
180
Ω
C4
3.3
μF
+
J4
GSM
RF OUTPUT
VCC
J2
PCS/DCS
RF OUTPUT
VCC
VCC
3108400B
C1*
1 nF
C2*
10 nF
C3*
10 nF
Components with (*) following the reference designator
should not be populated on the evaluation board.
GND
P1
1
CON1
P2
1
CON1
P2-1
VCC
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