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RF2153
Rev A18 001114
2
Evaluation Board Schematic
US - CDMA
R2
L3
1.5 nH
C11
8 pF
C12
10 nF
C7
1 uF
C30
C8
10 nF
C6
15 pF
C5
15 pF
C27
15 pF
R1
1 k
Ω
C13
15 pF
Tied together for optimum linearity
L4
15 nH
1
2
3
4
5
13
12
11
10
9
678
16
14
15
C1**
C15**
C3
15 pF
L1*
C4
15 pF
C26
10 nF
C14
1 pF
R3
39
Ω
CDMA (US)
Board
R2 (
Ω)
C15 (pF)
C30 (pF)
C1 (pF)
L1 (nH)
150
2.2
10
4.7
12
TL
1
TL
2
TL
3
C10
1 uF
* L1 is a High Q inductor (i.e., Coilcraft 0805HQ-series).
**C1 and C15 are High Q capacitors (i.e., Johanson C-series).
P1-1
J2
RF OUT
J1
RF IN
C2
4.7 uF
+
2153400 Rev. A
50
Ω µstrip
R4
0
Ω
P1
1
2
P1-1
VCC
GND
P2
1
2
P2-1
VREG
VMODE
P2-2
P2-1
P2-2
TL
4
100 mils
or > 2.7 nH
inductor
TL
4
20 mils
TL
3
100 mils
TL
2
20 mils
TL
1
CDMA (US)
Transmission
Line Length
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