8 / 14 page
8-416
RF2890
Rev A4 040421
Application Schematic
Differential Configuration
33 nF
33 nH
33 nF
1.8 nH
1.2 pF
G1
4.7 nH
10 pF
22 nH
30
Ω
33 nF
33 nF
15 nH
TX BUFF
ENAB
ENABLE
DIV
SEL
33 nF
33 nF
33 nH
16 k
Ω 7.5 kΩ
1
3
2
6
24
23
22
21
20
19
4
5
12
18
15
17
16
14
13
10
9
7
8
11
/2
5.6 nH
33 nF
V
CC
CELL LNA IN
DNI
GPS LNA IN
GPS
RF
SAW
G2
BAND
SEL
V
CC
V
CC1
LO IN
V
CC2
LO OUT
33 nH
CELL
RF
SAW
L1
(0603
Wire-wound
Coilcraft)
L2
(0603
Wire-wound
Coilcraft)
V
CC
R1
C1
C2
C3
L3
(0603
Wire-wound
Coilcraft)
CDMA IF
(IFSAW1)
SAW
CDMA
L4
(0603
Wire-wound
Coilcraft)
L5
(0603
Wire-wound
Coilcraft)
V
CC
R2
C4
C5
C6
L6
(0603
Wire-wound
Coilcraft)
GPS IF
(IFSAW2)
SAW
GPS
8.2 nH
10 nH
6.2 pF
0
Ω
0
Ω
IF Frequency
CDMA IF OUTPUT
184 MHz
85 MHz
C1
1.8 pF
22 pF
R1
DNI
DNI
L1
68 nH
68 nH
L2
68 nH
68 nH
C2
5.6 pF
7.5 pF
C3
5.6 pF
7.5 pF
L3
47 nH
270 nH
IF SAW1
EPCOS B4955
LG 0085G2
IF Frequency
GPS IF OUTPUT for use with SAW FILTER
184 MHz
C4
DNI
C5
5.6 pF
C6
5.6 pF
L4
180 nH
L5
180 nH
L6
47 nH
R2
10 k
Ω
IF SAW2
Murata SAFCC183MCA1
Note 1: L1, L2, and L3 may be substituted with 0402 wire-wound inductors of the same value.
Note 2: For single-ended configurations, C3 and C6 are removed.
Note 3: If system specifications allow the removal of the GPS RF SAW Filter, see diagram below for
pin 6 and pin 7 connections.
*Note 3
6
7
4.7 nH
10 pF
22 nH
30
Ω
33 nF
33 nF
15 nH
V
CC
8.2 nH
Portuguese ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
