Preliminary
RF2161
Application Schematic
W-CDMA (1920MHz to 1980MHz)
VCC
1 µF
4.7 uF
2
10 nF
10 nF
10 nF
10 nH
8.2 pF
C30
15 pF
15 pF
TL3
16
15
14
1
2
3
4
5
13
12
11
10
9
L1*
1.2 nH
R2
15 pF
C14**
TL1
TL2
RF OUT
15 pF
C1**
RF IN
15 nH
6
7
8
15 pF
15 pF
1 uF
VREG
1.8k Ω
VMODE
* 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)
C30 (pF)
8.2
C1 (pF)
4.7
L1 (nH)
16
C14 (pF)
2.2
WCDMA
0.044"
0.140"
0.022"
WCDMA
150
Rev A3 010514
2-201