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8-418
RF2890
Rev A4 040421
Evaluation Board Schematic
IF Freq=183.6MHz (Cellular and GPS IF)
(Download Bill of Materials from www.rfmd.com.)
L1
8.2 nH
VCC
C14
3.3 pF
50
Ω µstrip
J1
CELL LNA OUT
50
Ω µstrip
J2
CELL LNA IN
C32
33 nF
L16
1.8 nH
C29
1.2 pF
50
Ω µstrip
J5
GPS LNA IN
C34
33 nF
VG1
L20
4.7 nH
C35
10 pF
L19
22 nH
R8
30
Ω
C33
33 nF
50
Ω µstrip
J6
GPS LNA OUT
C36
33 nF
L21
15 nH
50
Ω µstrip
J7
GPS MIXER IN
C38
33 nF
VG2
C40
33 nF
BAND SEL
C41
33 nF
VCC1
VCC2
50
Ω µstrip
J8
LO IN
50
Ω µstrip
J9
LO OUT
C43
33 nF
TX BUF ENAB
C8
2.7 pF
C11
6.8 pF
50
Ω µstrip
J11
CDMA
C18
2.7 pF
L2
110 nH
C10
33 nF
VCC
ENABLE
C16
33 nF
C17
33 nF
DIV SEL
C1
33 nF
C4
33 nF
L6
39 nH
50
Ω µstrip
J14
CELL MIXER IN
R4
16 k
Ω
R5
7.5 k
Ω
C20
2.0 pF
L12
270 nH
C19
2.0 pF
C26
4.3 pF
L11
150 nH
C24
33 nF
VCC
50
Ω µstrip
J12
GPS
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
VCC
L9
8.2 nH
R3
7.5 k
Ω
L3
220 nH
L66
27 nH
DNI
R6
22 k
Ω
0
Ω
L22
2.2 nH
0
Ω
L4
5.6 nH
C15
24 pF
C2
33 nF
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