RF2153
Evaluation Board Schematic
US - CDMA
C7
1 uF
C2
4.7 uF
+
P1-1
C12
10 nF
C8
10 nF
C26
10 nF
2
C11
8 pF
C6
15 pF
C4
15 pF
TL4
C30
TL3
16
15
14
1
2
3
4
5
13
12
11
10
C14
1 pF
L1*
L3
1.5 nH
C3
15 pF
TL2
TL1
J2
RF OUT
C5
15 pF
R2
50 Ω µstrip
C1**
C15**
J1
L4
15 nH
RF IN
6
7
8
9
R3
R4
2153400 Rev. A
P1
1
39
Ω
0
Ω
P1-1
VCC
GND
C27
15 pF
C13
15 pF
2
C10
1 uF
P2
1
P2-1
P2-2
VREG
P2-1
P2-2
2
VMODE
R1
1 kΩ
* L1 is a High Q inductor (i.e.,Coilcraft 0805HQ-series).
**C1 and C15 are High Q capacitors (i.e., Johanson C-series).
Tied together for optimum linearity
Board
R2 (
Ω
)
C30 (pF)
10
C1 (pF)
4.7
L1 (nH)
12
C15 (pF)
2.2
CDMA (US)
150
Transmission
Line Length
TL1
20 mils
TL2
TL3
20 mils
TL4
CDMA (US)
100 mils
100 mils
or > 2.7 nH
inductor
2-174
Rev A18 001114