Preliminary
RF2161
Evaluation Board Schematic
W-CDMA (1920MHz to 1980MHz)
P1
C7
C2
4.7 uF
1 µF
C12
10 nF
C8
10 nF
2
C26
10 nF
L2
10 nH
C11
8.2 pF
C6
15 pF
C4
15 pF
C30
P1
P2
P3
P4
VCC
VREG
TL3
VMODE
GND
16
15
14
1
2
3
4
5
13
12
11
10
9
L1*
L3
1.2 nH
C3
15 pF
TL1
TL2
50 Ω µstrip
J2
C5
15 pF
RF OUT
R2
50 Ω µstrip
C1**
C14**
J1
L4
15 nH
RF IN
6
7
8
2161400-
C13
15 pF
C27
15 pF
C10
1 uF
P2
P3
R1
1.8k Ω
* L1 is a High Q inductor (i.e., Coilcraft 0805HQ-series).
**C1 and C14 are High Q capacitors
(i.e., Johanson C-series).
Transmission
Line Length
TL1
TL2
TL3
Board
R2 (Ω)
150
C30 (pF)
8.2
C1 (pF)
4.7
L1 (nH)
16
C14 (pF)
2.2
WCDMA
0.044"
0.140"
0.022"
WCDMA
2-202
Rev A3 010514
RFMD [ RF MICRO DEVICES ]
